Advanced Anatomy and Physiology for ICD-10-CM/PCS An essential resource for diagnostic and procedural coding 2012 Contents Introduction Course Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i The Human Body. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Anatomy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Structural Organization. . . . . . . . . . . . . . . . . . . . . . . . . . . ii Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv Physiology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv Anatomy and Physiology for ICD-10-CM/PCS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv ICD-10-CM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv ICD-10-PCS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Organization of the Book. . . . . . . . . . . . . . . . . . . . . . . . . vi Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Quiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii Section I – Anatomy and Physiology for ICD-10-CM Table 1. Conventions Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Table 2. General Coding Guidelines . . . . . . . . . . . . . . . . . . xiii Process For Code Selection . . . . . . . . . . . . . . . . . . . . . . . . . xvii Chapter 1 – Blood and Blood Forming Organs Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Erythrocytes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Leukocytes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Thrombocytes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Tissues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Myeloid Tissue. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Lymphatic Tissue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Blood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Interstitial Fluid and Lymph. . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Spleen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Immune System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Non-Specific Defenses. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Specific Defenses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Types of Immunity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Cell-Mediated Immunity . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Antibody-Mediated Immunity . . . . . . . . . . . . . . . . . . . . . 5 Immune Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Interaction of Immune System with the Circulatory Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Comparison of ICD-9-CM and ICD-10-CM Blood and Blood Forming Organs Coding Guidelines. . . . . . . . . . 5 ICD-10-CM Documentation Elements of Blood, Blood Forming Organs, and Immune System . . . . . . . . . . . . . 6 Diseases, Disorders, Injuries, and Other Conditions of the Blood, Blood Forming Organs, and Immune Mechanism. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Infectious/Parasitic Diseases . . . . . . . . . . . . . . . . . . . . . . 6 Section 1.1 – Sepsis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Neoplasms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Section 1.2 – Lymphoma . . . . . . . . . . . . . . . . . . . . . . . . 12 Section 1.4 – Multiple Myeloma and Malignant Immunoproliferative Diseases . . . . . . . . . . . . . . . 14 Section 1.5 – Leukemia . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Section 1.6 – Lymphoid and Hematopoietic Neoplasms of Uncertain Behavior . . . . . . . . . . . . 16 Section 1.7a – Nutritional Anemia . . . . . . . . . . . . . . . 17 Section 1.7b – Hemolytic Anemia . . . . . . . . . . . . . . . 18 Section 1.7c – Aplastic Anemia, Other Anemias, and Bone Marrow Failure Syndromes . . . . . . . . . 19 Hypocoagulation Disorders . . . . . . . . . . . . . . . . . . . . . 19 Hypercoagulation Disorders . . . . . . . . . . . . . . . . . . . . . 20 Disseminated Intravascular Coagulation . . . . . . . . . 20 Other Disorders of the Blood. . . . . . . . . . . . . . . . . . . . . 20 Section 1.11a – Immunodeficiencies . . . . . . . . . . . . . 21 Section 1.11b –Hyperglobulinemias . . . . . . . . . . . . . 22 Section 1.11c – Sarcoidosis . . . . . . . . . . . . . . . . . . . . . . 22 Perinatal Hemolytic Disease . . . . . . . . . . . . . . . . . . . . . 22 Neonatal Disseminated Intravascular Coagulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Anatomy Quiz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Coding Practice Answers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Chapter 2 – Endocrine System Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hormones and Endocrine Glands . . . . . . . . . . . . . . . . . . . . The Pituitary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adenohypophysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Neurohypophysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thyroid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thyroxine and Triiodothyrinine . . . . . . . . . . . . . . . . . . Calcitonin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parathyroid Glands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adrenal Glands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adrenal Cortex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adrenal Medulla . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pancreas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Glucagon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Insulin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ovaries/Testes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ovaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Testes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pineal Gland. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thymus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Endocrine Functions of Other Organs. . . . . . . . . . . . 31 31 31 32 32 33 33 33 33 34 34 34 35 35 35 36 36 36 36 36 36 37 Contents Advanced Anatomy and Physiology for ICD-10-CM/PCS Comparison of ICD-9-CM and ICD-10-CM Endocrine, Nutritional and Metabolic Diseases Coding Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 ICD-10-CM Documentation Elements of Endocrine, Nutritional, and Metabolic Diseases . . . . . . . . . . . . . . . 40 Diseases, Disorders, Injuries, and Other Conditions of the Endocrine System, and Nutritional and Metabolic Disorders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Pituitary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Thyroid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Parathyroids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Adrenals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Pancreas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Ovaries/Testes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Pineal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Thymus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Section 2.3a – Pituitary Diseases and Disorders . . . . . 42 Section 2.3b – Thyroid Diseases and Disorders . . . . . 43 Parathyroid Diseases and Disorders . . . . . . . . . . . . . . 43 Section 2.3c – Adrenal Diseases and Disorders . . . . 43 Section 2.3d – Pancreas Diseases and Disorders . . . . . 44 Section 2.3e – Ovaries/Testes Diseases and Disorders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Pineal Diseases and Disorders . . . . . . . . . . . . . . . . . . . 46 Thymus Diseases and Disorders . . . . . . . . . . . . . . . . . 46 Section 2.3f – Polyglandular Dysfunction . . . . . . . . 46 Malnutrition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Vitamin, Mineral and Other Nutritional Deficiencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Complications of Hyperalimentation . . . . . . . . . . . . 47 Classic Phenylketonuria . . . . . . . . . . . . . . . . . . . . . . . . . 48 Lactose Intolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Familial Hypercholesterolemia . . . . . . . . . . . . . . . . . . 48 Hemochromatosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Cystic Fibrosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Anatomy Quiz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Coding Practice Answers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Chapter 3 – Nervous System Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Neurons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Neuroglia. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oligodendrocytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Astrocytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Microglia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Schwann cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tissues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Organs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Brain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cerebrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thalamus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hypothalamus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cerebullum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Brain Stem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Spinal Cord. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Meninges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cerebrospinal Fluid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Peripheral Nervous System. . . . . . . . . . . . . . . . . . . . . . . 57 57 57 57 58 58 58 58 58 58 58 58 59 59 59 60 60 60 61 61 61 Somatic Nervous System . . . . . . . . . . . . . . . . . . . . . . . . 62 Autonomic Nervous System . . . . . . . . . . . . . . . . . . . . . 63 Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Sensory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Nerve Impulses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Irritability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Nervous Tissue Injury. . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Comparison of ICD-9-CM and ICD-10-CM Nervous System Coding Guidelines . . . . . . . . . . . . . . . . . . . . . . . . 64 ICD-10-CM Documentation Elements of Nervous System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Diseases, Disorders, Injuries, and Other Conditions of the Nervous System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Gliomas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Other Nervous System Neoplasms . . . . . . . . . . . . . . . 69 Secondary Nervous System Neoplasms . . . . . . . . . . 69 Pain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Disorders of the Autonomic Nervous System . . . . 75 Acquired Hydrocephalus . . . . . . . . . . . . . . . . . . . . . . . 75 Complications of Procedures . . . . . . . . . . . . . . . . . . . 75 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Anatomy Quiz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Coding Practice Answers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Chapter 4 – Eye and Adnexa Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Fibrous Tunic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Vascular Tunic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Retina. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Eye Segments, Globe and Ocular Adnexa. . . . . . . . . 96 Anterior Segment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Posterior Segment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Ocular Adnexa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Eye Anatomy and Function . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Conjunctiva . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Sclera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Cornea . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Corneal Epithelium Layer . . . . . . . . . . . . . . . . . . . . . . . 97 Bowman’s Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Corneal Stroma Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Descemet’s Membrane Layer . . . . . . . . . . . . . . . . . . . 97 Corneal Endothelium . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Schlemm’s Canal and Trabecular Meshwork . . . . . . 97 Choroid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Ciliary Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Iris . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Retina . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Anterior Chamber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Aqueous Humor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Posterior Chamber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Lens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Eyelids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Globe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Lacrimal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Orbit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Vitreous Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Advanced Anatomy and Physiology for ICD-10-CM/PCS Optic Nerve and Visual Pathways . . . . . . . . . . . . . . . 100 Extraocular Muscles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Comparison of ICD-9-CM and ICD-10-CM Eye and Adnexa Coding Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . 101 ICD-10-CM Documentation Elements of Eye and Adnexa. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Diseases, Disorders, Injuries and Other Conditions of Eye and Adnexa. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Bacterial Conjunctivitis . . . . . . . . . . . . . . . . . . . . . . . . . 96 Follicular Conjunctivitis . . . . . . . . . . . . . . . . . . . . . . . . . 96 Viral Conjunctivitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Viral Keratoconjunctivitis . . . . . . . . . . . . . . . . . . . . . . . . 96 Cytomegalovirus (CMV) Retinitis . . . . . . . . . . . . . . . . 96 Eyelid Tumors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Squamous Carcinoma . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Melanoma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Intraocular Tumors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Orbital Dermoid Cysts . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Nevus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Giant Choroidal Nevi . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Entropion and Ectropion . . . . . . . . . . . . . . . . . . . . . . . . 98 Blepharoptosis and Blepharochalasis . . . . . . . . . . . . 98 Chalazion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Blepharitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Dacryoadenitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Dacryocystitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Stenosis and Obstruction Lacrimal Passages . . . . . 99 Conjunctivitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Allergic Conjunctivitis . . . . . . . . . . . . . . . . . . . . . . . . . 100 Chemical Conjunctivitis . . . . . . . . . . . . . . . . . . . . . . . 100 Pterygium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Scleritis and Episcleritis . . . . . . . . . . . . . . . . . . . . . . . . 100 Staphyloma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Keratoconjunctivitis and Keratitis . . . . . . . . . . . . . . . 101 Keratoconjunctivitis . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Keratitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Corneal Ulcers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Corneal Neovascularization . . . . . . . . . . . . . . . . . . . . 101 Iritis, Iridocyclitis, and Cyclitis . . . . . . . . . . . . . . . . . . . 102 Cysts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Synechiae and Goniosynechiae . . . . . . . . . . . . . . . . 102 Cataracts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Infantile and Juvenile Cataracts . . . . . . . . . . . . . . . . 103 Cataracts with Neovascularization . . . . . . . . . . . . . . 103 Cataracts in Inflammatory Disorders and Degenerative Diseases . . . . . . . . . . . . . . . . . . . . . .103 Drug-Induced Cataract . . . . . . . . . . . . . . . . . . . . . . . . . 103 ARMD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 Hereditary Macular Degeneration . . . . . . . . . . . . . . 105 Open-Angle Glaucoma . . . . . . . . . . . . . . . . . . . . . . . . . 105 Normal-Tension Glaucoma . . . . . . . . . . . . . . . . . . . . . 105 Closed-Angle Glaucoma . . . . . . . . . . . . . . . . . . . . . . . 105 Infantile Glaucoma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Phacolytic Glaucoma . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Glaucoma Associated with Other Eye Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Secondary Glaucoma . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Pseudoexfoliative Glaucoma . . . . . . . . . . . . . . . . . . . 106 Vitreous Hemorrhage . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Endophthalmitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 Strabismus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 Contents Myopia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Hypermetropia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Amblyopia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Blurred Vision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Diplopia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 Scotomas (Blind Spots) . . . . . . . . . . . . . . . . . . . . . . . . . 109 Visual Impairment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 Total Blindness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 Legal Blindness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 Nystagmus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Intraoperative and Postoperative Complications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Keratopathy Following Cataract Surgery . . . . . . . . 110 Lens Fragments Following Cataract Surgery . . . . 110 Chorioretinal Scarring Following Detachment Surgery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Coloboma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Retinopathy of Prematurity . . . . . . . . . . . . . . . . . . . . 111 Eye Abrasions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 Foreign Bodies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 Eyelid and Ocular Lacerations . . . . . . . . . . . . . . . . . . 112 Ocular Burns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 Chemical (Corrosive) Eye Injuries . . . . . . . . . . . . . . . 112 Quiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 Coding Practice Answers . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 Chapter 5 – Ear and Mastoid Process Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 Cells and Tissues of the Ear and Mastoid Process. . . . . 121 The External Ear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 External Auditory Canal (EAC) . . . . . . . . . . . . . . . . . . 122 The Middle Ear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 Tympanic Membrane . . . . . . . . . . . . . . . . . . . . . . . . . . 122 Ossicles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 The Eustachian Tube . . . . . . . . . . . . . . . . . . . . . . . . . . 123 The Inner Ear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 Vestibular Labyrinth System . . . . . . . . . . . . . . . . . . . . 124 The Cochlear Labyrinth . . . . . . . . . . . . . . . . . . . . . . . . 124 Mastoid Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 Comparison of ICD-9-CM and ICD-10-CM Ear and Mastoid Process Coding Guidelines. . . . . . . . . . . . . . . 125 ICD-10-CM Documentation Elements of Nervous System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 Diseases, Disorders, Injuries, and other Conditions of the Ear and Mastoid. . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Serous Otitis Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Suppurative Otitis Media . . . . . . . . . . . . . . . . . . . . . . 126 Mastoiditis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Otitis Externa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Myringitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 Malignant Tumors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 Benign Tumors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 Diseases of the External Ear . . . . . . . . . . . . . . . . . . . . 128 Middle Ear Diseases and Disorders . . . . . . . . . . . . . 129 Inner Ear Diseases and Disorders . . . . . . . . . . . . . . . 129 Hearing Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Perforated Eardrum . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 Ototoxicity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 Anatomy Quiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 Contents Coding Practice Answers . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 Chapter 6 – Circulatory System Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 Tissue. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 Organs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 Heart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 Pericardium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 Heart Wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 Heart Chambers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 Heart Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 Blood Supply to the Heart . . . . . . . . . . . . . . . . . . . . . . 139 Heart Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 Blood Vessels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 Arteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Capillaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Veins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Circulatory Routes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Physiology of the Blood Circulatory System. . . . . . 142 Lymphatic System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 Lymphatic Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 Lymph Nodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 Other Lymphatic Organs. . . . . . . . . . . . . . . . . . . . . . . . 143 Physiology of the Lymphatic Circulatory System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 Interstitial Fluid and Lymph . . . . . . . . . . . . . . . . . . . . 143 Lymph Capillaries and Digestion . . . . . . . . . . . . . . . 144 Defense Mechanisms of the Lymphatic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 Comparison of ICD-9-CM and ICD-10-CM Circulatory System Coding Guidelines . . . . . . . . . . . . . . . . . . . . . . . 144 ICD-10-CM Documentation Elements of Circulatory System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 Diseases, Disorders, Injuries and Other Conditions of Cardiovascular and Lymphatic Circulatory Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 Pericarditis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 Endocarditis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 Myocarditis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149 Acute Rheumatic Fever and Chronic Rheumatic Heart Disease. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Hypertensive Diseases. . . . . . . . . . . . . . . . . . . . . . . . . . 150 Angina Pectoris . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Myocardial Infarction . . . . . . . . . . . . . . . . . . . . . . . . . . 151 Atherosclerosis of Coronary Arteries . . . . . . . . . . . . 151 Pulmonary Embolism . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Cor Pulmonale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Pulmonary Hypertension . . . . . . . . . . . . . . . . . . . . . . 152 Pericardial Effusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 Heart Valve Disorders . . . . . . . . . . . . . . . . . . . . . . . . . . 153 Cardiomyopathies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 Conduction Disorders and Dysrhythmias . . . . . . . 154 Heart Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 Nontraumatic Subarachnoid or Intracerebral Hemorrhage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 Cerebral Infarction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 Occlusion and Stenosis of Precerebral or Cerebral Arteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 Atherosclerosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 Advanced Anatomy and Physiology for ICD-10-CM/PCS Aneurysm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 Embolism and Thrombosis . . . . . . . . . . . . . . . . . . . . . 157 Phlebitis and Thrombophlebitis . . . . . . . . . . . . . . . . 157 Venous Thrombosis and Embolism . . . . . . . . . . . . . 157 Varicose Veins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 Venous Insufficiency and Hypertension . . . . . . . . . 158 Diseases of Lymphatic Vessels and Lymph Nodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 Hypotension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .158 Gangrene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 Intraoperative and Postprocedural Complications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 Conditions Affecting Newborns. . . . . . . . . . . . . . . . . 159 Defects of the Heart Valves . . . . . . . . . . . . . . . . . . . . . 160 Congenital Malformations of the Great Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 Other Congenital Malformations of the Circulatory System . . . . . . . . . . . . . . . . . . . . . . . . . 161 Chest Pain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161 Cardiogenic Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161 Enlarged Lymph Nodes . . . . . . . . . . . . . . . . . . . . . . . . 161 Abnormal Findings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 Anatomy Quiz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 Coding Practice Answers . . . . . . . . . . . . . . . . . . . . . . . . . . . 164 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 Chapter 7 – Respiratory System Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 Specialized Cells of the Respiratory Tract . . . . . . . . . . . . 169 Cells of Respiratory Epithelium. . . . . . . . . . . . . . . . . . 169 Goblet Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 Ciliated Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Basal Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Clara Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Alveolar Cells. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Type I Alveolar Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Type II Alveolar Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Alveolar macrophages . . . . . . . . . . . . . . . . . . . . . . . . . 170 Tissues of the Respiratory System. . . . . . . . . . . . . . . . . . . 170 Conductive Portion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Respiratory Epithelium . . . . . . . . . . . . . . . . . . . . . . . . 170 Lamina Propria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 Submucosa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 Cartilage and Muscle . . . . . . . . . . . . . . . . . . . . . . . . . . 171 Respiratory Portion of Lungs . . . . . . . . . . . . . . . . . . . . 171 Organs of the Respiratory System and their Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 Nasal Cavity and Turbinates. . . . . . . . . . . . . . . . . . . . . 171 Paranasal Sinuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 Tonsils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 Pharynx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 Larynx and Vocal Cords . . . . . . . . . . . . . . . . . . . . . . . . . 173 Airway Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 Phonation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 Trachea and Bronchi . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 Lungs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 Anatomical Structure and Function . . . . . . . . . . . . 173 Neurochemical Control of Ventilation . . . . . . . . . . 173 Mechanics of Breathing . . . . . . . . . . . . . . . . . . . . . . . .175 Gas Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176 Advanced Anatomy and Physiology for ICD-10-CM/PCS Pleura. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176 Comparison of ICD-9-CM and ICD-10-CM Respiratory System Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176 ICD-10-CM Documentation Elements of Respiratory System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 Diseases, Disorders, Injuries, and other Conditions of the Respiratory System . . . . . . . . . . . . . . . . . . . . . . . . . . 179 Tuberculosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 Pertussis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 Acute Upper Respiratory Infections . . . . . . . . . . . . . 179 Influenza . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 Pneumonia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 Lung Abscess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 Chronic Lower Respiratory Diseases . . . . . . . . . . . . 181 Congenital Pneumonia . . . . . . . . . . . . . . . . . . . . . . . . 186 Meconium Aspiration Syndrome . . . . . . . . . . . . . . . 186 Transient Tachypnea of Newborn . . . . . . . . . . . . . . 187 Pneumothorax in Newborn . . . . . . . . . . . . . . . . . . . . 187 Signs and Symptoms . . . . . . . . . . . . . . . . . . . . . . . . . . .188 Abnormal Findings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189 Anatomy Quiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 Coding Practice Answers . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194 Chapter 8 – Digestive System Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 Specialized Epithelial Cells of the Gastrointestinal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 Upper GI Tract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 Mucous Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 Taste Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 Serous Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 Intestine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Enterocytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Paneth Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Goblet Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Enteroendocrine Cells . . . . . . . . . . . . . . . . . . . . . . . . . 197 Stomach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Surface Mucosal Cells . . . . . . . . . . . . . . . . . . . . . . . . . 197 Mucous Neck Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Parietal (Oxyntic) Cells . . . . . . . . . . . . . . . . . . . . . . . . . 197 Chief Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .197 Gastric Endocrine Cells . . . . . . . . . . . . . . . . . . . . . . . . 197 Liver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Hepatocytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Kupffer Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Exocrine Pancreas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Acinar Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Tissues and their Functions. . . . . . . . . . . . . . . . . . . . . . . . . 197 Mucosa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Mucous Epithelium . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Lamina Propria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Muscularis Mucosae . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Submucosa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Muscularis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Serosa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Organs of the Digestive System and their Functions . . 198 Oral Cavity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Basic Structure and Function . . . . . . . . . . . . . . . . . . 198 Tongue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 Contents Salivary Glands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 Esophagus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 Basic Structure and Function . . . . . . . . . . . . . . . . . . 199 Swallowing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Stomach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Basic Structure and Function . . . . . . . . . . . . . . . . . . 200 Innervation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Gastric Motility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Secretion of Digestive Juices . . . . . . . . . . . . . . . . . . . 200 Small Intestine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201 Basic Structure and Function . . . . . . . . . . . . . . . . . . 201 Innervation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201 Digestion of Chyme . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 Intestinal Motility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 Large Intestine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 Basic Structure and Function . . . . . . . . . . . . . . . . . . 202 Innervation and Motility . . . . . . . . . . . . . . . . . . . . . . . 203 Waste Elimination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 Liver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 Basic Structure and Function . . . . . . . . . . . . . . . . . . 203 Bile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 Gallbladder and Biliary Ducts . . . . . . . . . . . . . . . . . . . 204 Pancreas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 Basic Structure and Function . . . . . . . . . . . . . . . . . . 204 Innervation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 Differences Between ICD-9-CM and ICD-10-CM Digestive System Coding Guidelines. . . . . . . . . . . . . . 205 ICD-10-CM Documentation Elements of Digestive System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 Diseases, Disorders, Injuries, and Other Conditions of the Digestive System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 Enteritis/Colitis/Gastroenteritis . . . . . . . . . . . . . . . . . 206 Peritonitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 Viral Hepatitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 Malignant Neoplasms . . . . . . . . . . . . . . . . . . . . . . . . . . 207 Benign Neoplasms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 Diseases and Disorders of the Digestive System . 209 Gastroesophageal Reflux . . . . . . . . . . . . . . . . . . . . . . 209 Barrett’s Esophagus . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 Mallory-Weiss Syndrome . . . . . . . . . . . . . . . . . . . . . . . 209 Gastrointestinal Ulcers . . . . . . . . . . . . . . . . . . . . . . . . . 209 Hernias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 Noninfectious Gastritis/Enteritis/Colitis . . . . . . . . . 210 Other Diseases of the Intestines . . . . . . . . . . . . . . . . 210 Diverticular Disease . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 Liver Disease . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 Diseases of the Gallbladder and Biliary Tract . . . . 212 Pancreas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .212 Quiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 Coding Practice Answers . . . . . . . . . . . . . . . . . . . . . . . . . . . 217 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219 Chapter 9 – Integumentary System Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 Epidermal Cells. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 Keratinocytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 Melanocytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 Langerhans Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 Merkel Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 Dermal Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 Fibroblasts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 Contents Mast Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 Macrophages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 Hypodermal Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 Tissues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 Epidermis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 Dermis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223 Hypodermis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223 Organ Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223 Epidermal Layers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224 Dermal Layers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224 Subcutaneous Layer. . . . . . . . . . . . . . . . . . . . . . . . . . . . 224 Comparison of ICD-9-CM and ICD-10-CM Integumentary System Coding Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224 ICD-10-CM Documentation Elements of Integumentary System. . . . . . . . . . . . . . . . . . . . . . . . . . . 225 Diseases, Disorders, Injuries, and other Conditions of Integumentary System and Skin Appendages. . . . . 226 Dermatophytosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226 Basal Cell and Squamous Cell Carcinomas . . . . . . 227 Melanomas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227 Merkel cell carcinoma . . . . . . . . . . . . . . . . . . . . . . . . . . 227 Lipomas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227 Pemphigus Vulgaris . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228 Bullous pemphigoid . . . . . . . . . . . . . . . . . . . . . . . . . . . 228 Atopic Dermatitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228 Seborrheic Dermatitis . . . . . . . . . . . . . . . . . . . . . . . . . . 228 Contact Dermatitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228 Papulosquamous Disorders . . . . . . . . . . . . . . . . . . . . 229 Anatomy Quiz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232 Coding Practice Answers . . . . . . . . . . . . . . . . . . . . . . . . . . . 233 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235 Chapter 10 – Musculoskeletal System Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237 Skeletal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237 Cells. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237 Tissue. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238 Bone. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238 Types of Bone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238 Cartilage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 Bone Anatomy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 Diaphysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 Epiphyses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 Articular Cartilage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 Periosteum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 Medullary Cavity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 Endosteum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 Bone Formation and Growth. . . . . . . . . . . . . . . . . . . . 239 Axial and Appendicular Skeleton. . . . . . . . . . . . . . . . 240 Joints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244 Fibrous Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244 Cartilaginous Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244 Synovial Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244 Muscular System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 Cells. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 Tissue. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 Skeletal Muscle Tissue . . . . . . . . . . . . . . . . . . . . . . . . . .245 Smooth Muscle Tissue . . . . . . . . . . . . . . . . . . . . . . . . . 246 Cardiac Muscle Tissue . . . . . . . . . . . . . . . . . . . . . . . . . . 246 Skeletal Muscles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246 Advanced Anatomy and Physiology for ICD-10-CM/PCS Comparison of ICD-9-CM ICD-10-CM Musculoskeletal System Coding. . . . . . . . . . . . . . . . . . 249 ICD-10-CM Documentation Elements of Muscoloskeletal System. . . . . . . . . . . . . . . . . . . . . . . . . . 250 Diseases, Disorders, Injuries and Other Conditions of Musculoskeletal System. . . . . . . . . . . . . . . . . . . . . . . 250 Osteomyelitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 Pyogenic Arthritis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251 Infectious Myositis . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251 Malignant Neoplasms . . . . . . . . . . . . . . . . . . . . . . . . . . 251 Benign Neoplasms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252 Rheumatoid Arthritis . . . . . . . . . . . . . . . . . . . . . . . . . . .252 Enteropathic Arthropathies . . . . . . . . . . . . . . . . . . . . 253 Gout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253 Villonodular synovitis . . . . . . . . . . . . . . . . . . . . . . . . . . 253 Osteoarthritis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253 Acquired Deformities . . . . . . . . . . . . . . . . . . . . . . . . . . 253 Old Injuries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253 Non-traumatic Joint Dislocation . . . . . . . . . . . . . . . . 254 Other Joint Disorders . . . . . . . . . . . . . . . . . . . . . . . . . . 254 Polyarteritis Nodosa . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 Systemic Lupus Erythematosis . . . . . . . . . . . . . . . . . 254 Systemic Sclerosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 Sicca Syndrome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 Kyphosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255 Lordosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255 Scoliosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255 Spondylolysis, Spondylolisthesis, and Spondylitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255 Spinal Stenosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256 Fatigue Fractures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256 Collapsed Vertebrae . . . . . . . . . . . . . . . . . . . . . . . . . . . 256 Intervertebral Disc Disorders . . . . . . . . . . . . . . . . . . . 256 Myositis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257 Tendonitis, Tenosynovitis, Synovitis, and Bursitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257 Muscle Disorders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257 Tendon Disorders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258 Fibromyalgia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258 Disorders of Bone Density and Structure . . . . . . . . 258 Cartilage Disorders . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259 Conditions Affecting Newborns. . . . . . . . . . . . . . . . . 259 Congenital Hip Dysplasia and Dislocation . . . . . . .259 Deformities of the Feet . . . . . . . . . . . . . . . . . . . . . . . . . 259 Polydactyly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259 Syndactyly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260 Symptoms, Signs, and Abnormal Findings. . . . . . . 260 Fractures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260 Crush Injuries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263 Traumatic Amputations . . . . . . . . . . . . . . . . . . . . . . . . 263 Other and Unspecified Injuries of the Musculoskeletal System . . . . . . . . . . . . . . . . . . . . 263 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264 Anatomy Quiz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265 Coding Practice Answers . . . . . . . . . . . . . . . . . . . . . . . . . . . 266 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269 Chapter 11 – Genitourinary System Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271 Urinary System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271 Kidneys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273 Advanced Anatomy and Physiology for ICD-10-CM/PCS Kidney Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273 Kidney Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273 Kidney Blood Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 273 Ureters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273 Urinary Bladder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274 Urethral Sphincter Muscles . . . . . . . . . . . . . . . . . . . . . 274 Bladder Nerves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274 Urethra . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274 Male Genital System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275 Penis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275 Testes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277 Seminiferous Tubules . . . . . . . . . . . . . . . . . . . . . . . . . . 277 Leydig Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277 Epididymis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277 Vas deferens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277 Spermatic Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277 Prostate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278 Bulbourethral Glands. . . . . . . . . . . . . . . . . . . . . . . . . . . 278 Female Genital System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278 Hymen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278 External Genitalia. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278 Labia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278 Uterus and Cervix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279 Uterine Corpus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280 Cervix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280 Vagina. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280 Ovaries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280 Fallopian Tubes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280 Fallopian Tube Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . 281 Breasts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281 Pregnancy, Childbirth and the Puerperium. . . . . . . . . . 282 Conception. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282 Pregnancy Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . 282 Gravid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282 Pregnancy Trimesters . . . . . . . . . . . . . . . . . . . . . . . . . . . 282 First Trimester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282 Second Trimester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283 Third Trimester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283 Childbirth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284 Puerperium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284 Comparison of ICD-9-CM and ICD-10-CM Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284 Genitourinary System. . . . . . . . . . . . . . . . . . . . . . . . . . . 284 Pregnancy, Childbirth and the Puerperium . . . . . . 284 ICD-10-CM Documentation Elements. . . . . . . . . . . . . . . 290 Genitourinary System. . . . . . . . . . . . . . . . . . . . . . . . . . . 291 Pregnancy, Childbirth and the Puerperium Coding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291 Section 11.1 – Infectious Diseases of the Urinary and Reproductive Systems. . . . . . . . . . . . . . . . . . . . . . . 291 Genitourinary Sexually Transmitted Diseases . . . . 291 Chlamydia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291 Gonorrhea . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292 Herpes Simplex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292 Human Papilloma Virus . . . . . . . . . . . . . . . . . . . . . . . . 292 Syphilis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292 Trichomoniasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292 Other Geniturinary Tract Infections. . . . . . . . . . . . . . 292 Urinary Tract Infection (UTI) . . . . . . . . . . . . . . . . . . . . 292 Urethritis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293 Cystitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293 Contents Pyelonephritis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293 Epididymitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .293 Pelvic Inflammatory Disease (Disorder) (PID) . . . . 293 Other Sexually Transmitted Diseases . . . . . . . . . . . . 293 Human Immunodeficiency Virus . . . . . . . . . . . . . . . 293 Hepatitis B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294 Maternal Infection Affecting the Fetus. . . . . . . . . . . 294 Toxoplasmosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294 Rubella . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294 Cytomegalovirus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294 Section 11.2 – Neoplasms of the Urinary and Reproductive Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 Renal Cyst. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 Renal Cell Carcinoma . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 Wilms Tumor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 Transitional Cell Carcinoma . . . . . . . . . . . . . . . . . . . . . 295 Other Bladder Malignancies. . . . . . . . . . . . . . . . . . . . . 295 Bladder Polyps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 Prostate Malignancy. . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 Testicular Malignancy. . . . . . . . . . . . . . . . . . . . . . . . . . . 296 Breast Malignancy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296 Malignant Neoplasms Uterus and Uterine Cervix. . 296 Uterine Fibroids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296 Section 11.3 – Other Diseases and Conditions of the Genitourinary System. . . . . . . . . . . . . . . . . . . . . . . . . . . . 297 Diseases of the Urinary System. . . . . . . . . . . . . . . . . . 297 Glomerular Diseases . . . . . . . . . . . . . . . . . . . . . . . . . . . 297 Renal Tubule-Interstitial Diseases . . . . . . . . . . . . . . . 298 Vesicoureteral Reflux . . . . . . . . . . . . . . . . . . . . . . . . . . . 298 Acute Renal Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298 Chronic Renal Disease . . . . . . . . . . . . . . . . . . . . . . . . . 298 Urolithiasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298 Gout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299 Interstitial and Irradiation Cystitis . . . . . . . . . . . . . . . 299 Bladder diverticulum . . . . . . . . . . . . . . . . . . . . . . . . . . 299 Overactive bladder . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299 Urethral Stricture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299 Enlarged Prostate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 Prostatitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300 Prostatic Intraepithelial Neoplasia . . . . . . . . . . . . . . 300 Hydrocele and Spermatocele . . . . . . . . . . . . . . . . . . . 300 Male Infertility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 Phimosis and Paraphimosis . . . . . . . . . . . . . . . . . . . . 301 Fibrocystic Breast Disease . . . . . . . . . . . . . . . . . . . . . . 302 Fibroadenosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302 Gynecomastia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302 Complications of Breast Augmentation and Reconstruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302 Endometriosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303 Genital Prolapse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303 Endometrial Hyperplasia . . . . . . . . . . . . . . . . . . . . . . . 303 Female Infertility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303 Menopause . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304 Urinary Incontinence . . . . . . . . . . . . . . . . . . . . . . . . . . 304 Stress Incontinence . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304 Urge Incontinence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304 Functional Incontinence . . . . . . . . . . . . . . . . . . . . . . . 304 Overflow Incontinence . . . . . . . . . . . . . . . . . . . . . . . . . 305 Transient Incontinence . . . . . . . . . . . . . . . . . . . . . . . . . 305 Hypospadias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305 Chordee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305 Contents Advanced Anatomy and Physiology for ICD-10-CM/PCS Undescended Testicles . . . . . . . . . . . . . . . . . . . . . . . . . 305 Klinefelter’s Syndrome . . . . . . . . . . . . . . . . . . . . . . . . . 305 Renal Trauma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305 Testicular Trauma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305 Intraoperative Injury of Geniturinary Tract . . . . . . 306 Section 11.10 – Pregnancy and Pregnancy-Related Disorders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306 Pregnancy with Abortive Outcome. . . . . . . . . . . . . . 306 Ectopic Pregnancy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306 Hydatidiform Mole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307 Blighted Ovum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307 Missed Abortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307 Spontaneous Abortion . . . . . . . . . . . . . . . . . . . . . . . . . 307 Induced Termination of Pregnancy . . . . . . . . . . . . . 308 Complications of Abortive Outcome . . . . . . . . . . . . 308 Gestational Edema . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309 Gestational Proteinuria . . . . . . . . . . . . . . . . . . . . . . . . .309 Hypertension in Pregnancy . . . . . . . . . . . . . . . . . . . . 309 Section 11.13 – Other Maternal Disorders Related to Pregnancy . . . . . . . . . . . . . . . . . . . . . . . . 309 Threatened Abortion . . . . . . . . . . . . . . . . . . . . . . . . . . 310 Diabetes Mellitus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310 Gestational Diabetes Mellitus (GDM) . . . . . . . . . . . 310 Multiple Gestation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310 Malpresentation of Fetus . . . . . . . . . . . . . . . . . . . . . . . 310 Disproportion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311 Fetal Growth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311 Polyhydramnios and Oligohydramnios . . . . . . . . . 311 Premature Rupture of Membranes . . . . . . . . . . . . . . 312 Preterm Rupture of Membranes . . . . . . . . . . . . . . . . 312 Preterm (Premature) Labor . . . . . . . . . . . . . . . . . . . . . 313 Abnormalities of the Forces of Labor . . . . . . . . . . . 313 Obstructed Labor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313 Failed Trial of Labor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314 Umbilical Cord Complications . . . . . . . . . . . . . . . . . . 314 Cord Entanglement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314 Vasa Previa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314 Vascular Lesions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314 Obstetric Trauma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314 Intrapartum or Postpartum Hemorrhage . . . . . . . 314 Amniotic Fluid Embolism . . . . . . . . . . . . . . . . . . . . . . 315 Postpartum Mood Disturbance . . . . . . . . . . . . . . . . . 315 Anatomy Quiz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317 Coding Practice Answers . . . . . . . . . . . . . . . . . . . . . . . . . . . 318 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324 Section II – Anatomy and Physiology for ICD-10-PCS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i New for 2012. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i Chapter 1 – Sections Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Medical and Surgical Section . . . . . . . . . . . . . . . . . . . . . . . . . Obstetrics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Placement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Measurement and Monitoring . . . . . . . . . . . . . . . . . . . . Extracorporeal Assistance and Performance . . . . . . . Extracorporeal Therapies. . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 1 2 3 3 3 4 4 Osteopathic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Other Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chiropractic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Imaging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nuclear Medicine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Radiation Oncology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Physical Rehabilitation and Diagnostic Audiology. . Mental Health . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Substance Abuse Treatment. . . . . . . . . . . . . . . . . . . . . . . Quiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5 5 5 6 6 6 7 7 8 9 Chapter 2 – Body Systems and Body Parts Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Body System Designations for Medical Surgical Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Anatomical Regions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Body Part Designations for Medical Surgical Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 General Body Part Designation. . . . . . . . . . . . . . . . . . . . . . . 13 Portion of Body Part. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Designation of Body Part With Prefix “Peri”. . . . . . . . . . . . 13 Specific Body Part Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Body System Designations in the Medical SurgicalRelated and Ancillary Sections. . . . . . . . . . . . . . . . . 16 Quiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Chapter 3 – ICD-10-PCS – Root Operations and Approaches Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Root Operations in the Medical Surgical Section. . . . . . Root Operation Definitions . . . . . . . . . . . . . . . . . . . . . . Repair Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Root Operation Groups . . . . . . . . . . . . . . . . . . . . . . . . . Root Operation Values . . . . . . . . . . . . . . . . . . . . . . . . . . Approach. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Root Operations in the Medical Surgical-Related Sections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Root Types in the Ancillary Sections. . . . . . . . . . . . . . Quiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 19 19 19 20 20 21 21 22 22 23 24 Chapter 4 – ICD-10-PCS – Devices and Qualifiers Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Devices That Take the Place of All or a Portion of a Body Part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Devices That Assist or Prevent a Physiological Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Therapeutic Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Mechanical or Electronic Appliances . . . . . . . . . . . . . 26 New Device Without a More Specific Device Value 26 Devices in the Placement Section . . . . . . . . . . . . . . . 27 Medical Surgical Procedures That Have a Specific Qualifier Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Obstetric Procedures That Have a Specific Qualifier Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Procedures That Do Not Have a Specific Qualifier Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Advanced Anatomy and Physiology for ICD-10-CM/PCS Contents Quiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Chapter 5 – ICD-10-PCS Applications Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Quiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 33 33 34 37 Chapter 6 – Medical and Surgical Section Coding Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Medical and Surgical Section . . . . . . . . . . . . . . . . . . . . . . . . 39 Nervous System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Central Nervous System . . . . . . . . . . . . . . . . . . . . . . . . . 40 Peripheral Nervous System . . . . . . . . . . . . . . . . . . . . . . 42 Circulatory System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Heart and Great Vessels . . . . . . . . . . . . . . . . . . . . . . . . . 43 Upper Arteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Lower Arteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Upper Veins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Lower Veins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Lymphatic and Hemic Systems. . . . . . . . . . . . . . . . . . . 52 Eye. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Respiratory System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Ears, Nose, and Sinus . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Respiratory System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Mouth and Throat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Gastrointestinal System. . . . . . . . . . . . . . . . . . . . . . . . . . 58 Gastrointestinal Body System . . . . . . . . . . . . . . . . . . . . 59 Hepatobiliary System and Pancreas . . . . . . . . . . . . . . 60 Endocrine System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Integumentary System. . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Skin and Breast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Subcutaneous Tissue and Fascia . . . . . . . . . . . . . . . . . 63 Musculoskeletal System. . . . . . . . . . . . . . . . . . . . . . . . . . 65 Muscles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Tendons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Bursae and Ligaments . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Head and Facial Bones . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Upper Bones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Lower Bones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Upper Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Lower Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Genitourinary System. . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Urinary System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Female Reproductive System . . . . . . . . . . . . . . . . . . . . 80 Male Reproductive System . . . . . . . . . . . . . . . . . . . . . . 81 Anatomical Regions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Upper Extremities Anatomical Regions . . . . . . . . . . 82 Lower Extremities Anatomical Regions . . . . . . . . . . 83 Quiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Coding Practice Answers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Chapter 7 – Coding in Medical/Surgical-Related Sectgions Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Section 1 Obstetrics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Obstetrics Coding Guidelines . . . . . . . . . . . . . . . . . . . . 95 Obstetrics Root Operations . . . . . . . . . . . . . . . . . . . . . . 96 Delivery vs Cesarean Section . . . . . . . . . . . . . . . . . . . . 96 Abortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Body System and Body Part in Obstetrics. . . . . . . . . 96 Obstetric Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Obstetric Qualifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Section 2 Placement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Placement Root Operations. . . . . . . . . . . . . . . . . . . . . . 97 Immobilization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Placement Body Systems and Body Regions. . . . . . 98 Placement Approach. . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Placement Section Devices. . . . . . . . . . . . . . . . . . . . . . . 98 Section 3 Administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Administration Root Operations. . . . . . . . . . . . . . . . . . 99 Administration Body Systems and Body Regions.100 Approach in Administration Section. . . . . . . . . . . . . 100 Substances Administered. . . . . . . . . . . . . . . . . . . . . . . 100 Administrative Qualifiers. . . . . . . . . . . . . . . . . . . . . . . . 101 Section 4 Measurement and Monitoring . . . . . . . . . . . . 102 Measurement and Monitoring Root Operations. . 102 Body Systems of Measurement and Monitoring. . 102 Approach for Measurement and Monitoring. . . . . 102 Functions or Devices Being Monitored and/or Measured. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Qualifier for Function/Device in Measurement and Monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Section 5 Extracorporeal Assistance and Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Root Operations and Body Systems in Extracorporeal Assistance and Performance. . 103 Extracorporeal Body System Designations. . . . . . . 103 Duration and Function of Extracorporeal Assistance and Performance. . . . . . . . . . . . . . . . . . 104 Extracorporeal Assistance and Performance Qualifiers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Section 6 Extracorporeal Therapies. . . . . . . . . . . . . . . . . . 105 Root Operations in Extracorporeal Therapies. . . . . 105 Body Systems in Extracorporeal Therapies. . . . . . . 105 Duration and Qualifiers for Extracorporeal Therapies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 Section 7 Osteopathic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Body System and Root Operation for Osteopathic Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Osteopathic Body Regions, Approach, and Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Section 8 Other Procedures. . . . . . . . . . . . . . . . . . . . . . . . . 107 Body Systems and Root Operations for Other Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 Method and Qualifier for Other Procedures. . . . . . 107 Section 9 Chiropractic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Body System and Root Operation for Chiropractic Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Chiropractic Body Regions, Approach, and Method. . 108 Quiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Chapter 8 – Coding in the Ancillary Sections Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Contents Section B Imaging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Imaging Root Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Contrast. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 Imaging Body Systems and Body Parts . . . . . . . . . . 112 Imaging Qualifiers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 Section C Nuclear Medicine. . . . . . . . . . . . . . . . . . . . . . . . . 113 Nuclear Medicine Root Types. . . . . . . . . . . . . . . . . . . . 113 Nuclear Medicine Body Systems and Body Parts. 114 Radionuclide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 Section D Radiation Oncology. . . . . . . . . . . . . . . . . . . . . . 115 Root Types of Radiation Oncology. . . . . . . . . . . . . . . 116 Radiation Oncology Root Types . . . . . . . . . . . . . . . . . 116 Body Systems and Treatment Site . . . . . . . . . . . . . . . 116 Modality Qualifier for Radiation Oncology. . . . . . . 116 Isotope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Section F Physical Rehabilitation and Diagnostic Audiology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 Advanced Anatomy and Physiology for ICD-10-CM/PCS Root Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 Physical Rehabilitation Root Types . . . . . . . . . . . . . . 117 Diagnostic Audiology Root Types . . . . . . . . . . . . . . . 118 Type Qualifier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 Section G Mental Health and Section H Substance Abuse Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Root Types in Mental Health. . . . . . . . . . . . . . . . . . . . . 120 Type Qualifiers in Mental Health. . . . . . . . . . . . . . . . . 120 Root Types in Substance Abuse Treatment. . . . . . . 121 Type Qualifiers in Substance Abuse Treatment. . . 121 Mental Health Coding Examples . . . . . . . . . . . . . . . . 121 Quiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 Appendix A – Official Coding Guidelines ICD-10-CM Official Coding Guidelines/Reporting. . . . . . 1 Introduction The Advanced Anatomy and Physiology for ICD-10-CM/PCS is designed to introduce health care professionals to the new ICD10-CM and PCS systems, to identify differences between ICD9-CM and ICD-10-CM and ICD-10-PCS, and additionally, to provide a more advanced understanding of body systems, diseases/disease processes, and anatomy. Each chapter in this book contains a systemized approach to learning. Course objectives begin each chapter followed by an overview of the given chapter topic. A thorough discussion provides the reader with the specifics of advanced coding in ICD-10-CM and PCS and how it relates to the ICD-9-CM systems. Official Coding Guidelines for both coding systems are listed side-by-side to allow easy comparison of similarities and changes. Coding Practices are provided, followed by questions to evoke thoughtful consideration of effective coding. Additionally, chapter-specific terminology are defined to foster greater learning. A quiz ends each chapter allowing the reader to test their knowledge. Quiz answers can be found on the following web site: www.contexodata.com/API10/ Refer to the end of this chapter for a detailed summary of the organization of this book. Course Objectives This course is designed to provide: • A solid foundation in basic human anatomy and physiology • A review of each body system with in-depth information on cells, tissues, and organs that comprise each body system • In-depth information on the function of cells, tissues, organs, and body systems and the roles they play in maintaining homeostasis and health • An overview of diseases and disease processes specific to each body system • A discussion of the effects of diseases and disease processes on multiple body systems • Information on multi-system diseases and disease processes • Advanced medical terminology specific to each body system • The relations between anatomy and physiology and code capture in diagnosis and procedure coding • New anatomical and physiological documentation requirements for code capture in ICD-10-CM and ICD10-PCS Overview Developing an understanding of anatomy and physiology from a coding perspective is one challenge coders face. Most anatomy and physiology courses begin with general information on structural organization and function beginning with an overview of the chemical level (atoms and molecules), cellular level, tissue level, organ level, and proceed to the body system level. Even after taking introductory anatomy and physiology courses, many coders have difficulty identifying the correct diagnosis or procedure code. This difficulty is due to a number of factors, not the least of which is the organization of the coding systems themselves. Diagnostic and procedural coding systems are not organized in the same fashion as most anatomy and physiology texts. Instead, diagnostic coding systems are organized by the disease or disease process which may sometimes be found under a body system but may also be found under different designations such as neoplasms, infections, or signs and symptoms. CPT procedure codes are organized by type of service or procedure (e.g., evaluation and management, surgical, radiological, etc) and then depending on the section may be organized by body system (surgical section), physician specialty (medicine section), or more specific types of service (radiology section). ICD-9CM Volume 3 was organized by the body system on which the procedure was performed, but because the available code numbers in some body systems were exhausted years ago, some new procedures on specific body systems are listed in the tabular sections under Procedures and Interventions Not Elsewhere Classified or Miscellaneous Procedures. ICD-10- PCS is organized in sections for the general type of procedure performed (e.g., Medical/Surgical, Obstetrics, Placement, Administration, etc.), then by body system, root operation, body part, approach, device, and qualifier. In this course, each body system will be covered in a separate chapter with the chapter objectives identified at the beginning. The chapters will first discuss pertinent information starting at the chemical level and then progress through each level to the body system level. Both structure and function will be discussed. Within each chapter, the diseases, disease processes, conditions, and symptoms related to the body system will be discussed. Specific medical terminology required to identify diagnosis and procedure codes correctly will be reviewed. New documentation requirements needed to capture codes in ICD-10-CM and ICD-10-PCS will also be covered. Each chapter will end with a quiz whereby students can test their proficiency as it relates to i Section I Advanced Anatomy and Physiology for ICD-10-CM Table 2. General Coding Guidelines B. ICD-9-CM General Coding Guidelines 1. Use of Both Alphabetic Index and Tabular List B. ICD-10-CM General Coding Guidelines 1. Locating a code in the ICD-10-CM Use both the Alphabetic Index and the Tabular List when locating and assigning a code. Reliance on only the Alphabetic Index or the Tabular List leads to errors in code assignments and less specificity in code selection. To select a code in the classification that corresponds to a diagnosis or reason for visit documented in a medical record, first locate the term in the Index, and then verify the code in the Tabular List. Read and be guided by instructional notations that appear in both the Index and the Tabular List. 2. Locate each term in the Alphabetic Index Locate each term in the Alphabetic Index and verify the code selected in the Tabular List. Read and be guided by instructional notations that appear in both the Alphabetic Index and the Tabular List. It is essential to use both the Index and Tabular List when locating and assigning a code. The Index does not always provide the full code. Selection of the full code, including laterality and any applicable 7th character can only be done in the Tabular list. A dash (-) at the end of an Index entry indicates that additional characters are required. Even if a dash is not included at the Index entry, it is necessary to refer to the Tabular list to verify that no 7th character is required. 3. Level of Detail in Coding 2. Level of Detail in Coding Diagnosis and procedure codes are to be used at their highest number of digits available. Diagnosis codes are to be used and reported at their highest number of digits available. ICD-9-CM diagnosis codes are composed of codes with 3, 4, or 5 digits. Codes with three digits are included in ICD-9-CM as the heading of a category of codes that may be further subdivided by the use of fourth and/or fifth digits, which provide greater detail. ICD-10-CM diagnosis codes are composed of codes with 3, 4, 5, 6 or 7 digits. Codes with three digits are included in ICD-10-CM as the heading of a category of codes that may be further subdivided by the use of fourth and/or fifth digits, which provide greater detail. B. ICD-9-CM General Coding Guidelines B. ICD-10-CM General Coding Guidelines A three-digit code is to be used only if it is not further subdivided. Where fourth-digit subcategories and/ or fifth-digit subclassifications are provided, they must be assigned. A code is invalid if it has not been coded to the full number of digits required for that code. For example, Acute myocardial infarction, code 410, has fourth digits that describe the location of the infarction (e.g., 410.2, Of inferolateral wall), and fifth digits that identify the episode of care. It would be incorrect to report a code in category 410 without a fourth and fifth digit. A three-digit code is to be used only if it is not further subdivided. A code is invalid if it has not been coded to the full number of characters required for that code, including the 7th character, if applicable. Section I General coding guidelines in ICD-10-CM have also undergone changes when compared to ICD-9-CM. Table 2 below again provides a side-by-side comparison of the general guidelines so that differences can be easily identified. ICD-9-CM Volume 3 procedure codes are composed of codes with either 3 or 4 digits. Codes with two digits are included in ICD-9-CM as the heading of a category of codes that may be further subdivided by the use of third and/or fourth digits, which provide greater detail. 4. Code or codes from 001.0 through V89.09 3. Code or codes from A00.0 through T88.9, Z00-Z99.8 The appropriate code or codes from 001.0 through V89.09 must be used to identify diagnoses, symptoms, conditions, problems, complaints or other reason(s) for the encounter/ visit. The appropriate code or codes from A00.0 through T88.9, Z00-Z99.8 must be used to identify diagnoses, symptoms, conditions, problems, complaints or other reason(s) for the encounter/visit. 5. Selection of codes 001.0 through 999.9 The selection of codes 001.0 through 999.9 will frequently be used to describe the reason for the admission/encounter. These codes are from the section of ICD-9-CM for the classification of diseases and injuries (e.g., infectious and parasitic diseases; neoplasms; symptoms, signs, and ill-defined conditions, etc.). xiii Endocrine System Advanced Anatomy and Physiology for ICD-10-CM Hormones are classified as either proteins, amines (protein derivatives), or steroids. All hormones in the body except sex hormones and those secreted by the adrenal cortex are protein or protein derivatives. Protein and protein derivative hormones react with receptors on the surface of the cell and the changes these proteins set in motion are relatively rapid. Steroid hormones react with receptors inside the cells and this process generally requires protein synthesis which results in slower changes in cellular activity. Hormones are potent substances that require regulation to maintain them within the very narrow parameters necessary to maintain homeostasis. When regulatory mechanisms fail, hormone imbalances can occur causing a variety of disorders. The Pituitary 2. Endocrine System The pituitary gland, also called the hypophysis, is a small gland, about 1 cm in size. It is located in the sella turcica, which is a depression in the sphenoid bone. It is attached to the hypothalamus of the brain by a slender stalk called the infundibulum. The infundibulum penetrates the dura mater. The pituitary gland is divided into anterior and posterior lobes, called the adenohypophysis and the neurohypophysis respectively, which are different structurally and functionally. Pituitary gland Neurosecretory cells Capillaries Artery infundibulum. Secretions from the hypothalamus are delivered to and stimulate the adenohypophysis as follows: 1. Chemicals released from the hypothalamus diffuse across the capillary membranes and enter the blood. 2. The capillaries unite to form portal veins that carry blood and the chemical secretions from the hypothalamus to the anterior lobe of the pituitary gland. 3. When the anterior lobe receives the chemicals, the pituitary gland then secretes one of six hormones from three types of glandular cells called acidophils, basophils, and chromophobes. 4. Hormones secreted from the different glandular cells are as follows: • Growth hormone • Thyroid stimulating hormone • Adrenocorticotropic hormone • Follicle stimulating hormone • Leuteinizing hormone • Prolactin Growth hormone is also referred to as somatotropin or somatotrophic hormone (STH). It is a protein hormone that stimulates the growth of hard and soft tissues including bones, muscles, and body organs. Once full growth is attained, growth hormone helps to maintain the size of the hard and soft tissues. Too little growth hormone in a child can cause pituitary dwarfism. Too much growth hormone may result in gigantism. Growth hormone has two other important functions. It causes cells to switch from burning carbohydrates to burning fats and it accelerates the rate at which glycogen stored in the liver is converted to glucose and released into the blood thereby increasing blood sugar. Thyroid stimulating hormone (TSH), also referred to as thyrotropin, stimulates the synthesis and secretion of hormones from the thyroid gland. Portal system Adrenocorticotropic hormone (ACTH) has two functions. Its primary function is to regulate the adrenal glands which produce and secrete adrenal cortex hormones. A second function is to stimulate the liver to remove glucose from the blood thereby decreasing blood sugar. Anterior lobe Pituitary gland vein Follicle stimulating hormone (FSH) affects ovarian and testicular function. In females, it stimulates ova to develop and cells in the ovaries to secrete estrogens. In males, it stimulates the testes to produce sperm and cells in the testes to secrete testosterone. Posterior lobe Pituitary fossa Adenohypophysis The adenohypophysis is the glandular part of the pituitary containing glandular epithelial cells. It is connected to the hypothalamus by blood vessels and releases hormones that regulate many bodily activities. Release of hormones from the adenohypophysis is controlled by chemical secretions from the hypothalamus. The hypothalamus lies just above the infundibulum and receives blood from the superior hypophyseal arteries that form a network of capillaries in the 32 Luteinizing hormone (LH) affects sexual and reproductive functions in both males and females. It stimulates the ovary in females to release the mature ovum and prepares the uterus for implantation of a fertilized ovum. It also stimulates the secretion of progesterone which prepares the mammary glands for production of milk. In males, it stimulates the interstitial cells in the testes to synthesize and secrete testosterone. Prolactin initiates milk secretion from the mammary glands. Circulatory System Advanced Anatomy and Physiology for ICD-10-CM The table below lists the aortic divisions, first order branches off each division, and major second order branches. Table 6.1 Aorta and Branches Aortic Divisions First Order Branches Ascending aorta Coronary arteries Brachiocephalic (innominate) Second Order Branches Right common carotid 6. Circulatory System Left common carotid Left subclavian Intercostal arteries Thoracic aorta The capillaries then flow into venules and veins. Venules and veins are not dependent on blood pressure to promote circulation. Instead, the return of venous blood to the heart is dependent on skeletal muscle contraction, respiratory movements, and constriction of smooth muscle tissue in the venous walls. Superior phrenic arteries Bronchial arteries Esophageal arteries Inferior phrenic arteries Celiac Lymphatic System Hepatic The lymphatic system consists of lymphatic fluid, lymphatic vessels, and masses of lymphatic tissue in the lymph nodes, tonsils, thymus, and spleen. Left gastric Splenic Superior mesenteric Lymphatic Vessels Suprarenal arteries Abdominal aorta Lymphatic vessels serve as conduits that transport fluid away from body tissues. Lymphatic vessels are distributed throughout most of the body and begin as microscopic open-ended sacs called lymphatic capillaries located in the tissue spaces. The only regions of the body that do not contain lymphatic capillaries are the bone marrow, central nervous system, and body tissues that do not contain blood vessels. Renal arteries Testicular/Ovarian arteries Inferior mesenteric Common iliac arteries External iliac arteries Internal iliac arteries There are a number of subdivisions to the systemic circulation including: • Coronary circulation – blood vessels that run from the aorta to the heart • Portal circulation – blood vessels that run from the digestive tract to the liver • Cerebrovascular circulation – blood vessels that run from the aorta to the brain Physiology of the Blood Circulatory System The primary function of the blood circulatory system is to deliver oxygen and nutrients to body tissues and remove waste. This process begins with the heart which is responsible for providing the pumping force necessary to circulate blood to all tissues and cells of the body. The arteries channel blood to all parts of the body. Blood is channeled through ever smaller arteries until it reaches arterioles and then capillaries. Blood flow from the heart is dependent on the pressure exerted against the artery walls, and like all liquids, blood flows from an area of higher pressure to an area of lower pressure. Therefore blood pressure against the artery walls is highest in the large vessels and lowest in the capillaries. As blood pressure decreases, blood flow slows. 142 • Exchange of gases • Exchange of nutrients • Removal of metabolic waste These substances pass through the capillary wall by means of diffusion in the case of gases, and osmosis and hydrostatic pressure in the case of fluids. The combination of hydrostatic and osmotic pressures allows substances to leave and enter the capillary. Right subclavian Aortic arch By the time blood reaches the capillaries, blood flow has slowed to a point where essential metabolic functions can occur. Essential metabolic functions carried out by capillary microcirculation include: Lymphatic vessels Artery Tissue cells Lymph capillary Capillaries Tissue spaces Tissue fluid Lymphatic vessel Lymph node Vein Skin and Subcutaneous Tissue Advanced Anatomy and Physiology for ICD-10-CM These projections give texture to the skin surface and form what are called rete pegs. Loss of the rete pegs occurs with aging as the skin becomes structurally thinner and that loss gives the skin a smooth, shiny, paper-thin appearance. Stratum layers of the skin Stratum corneum Stratum lucidium The rest of the connective tissue in the dermis is the reticular layer. Each different layer in the skin represents a progressive stage of cell differentiation as they move upward, becoming keratinized and flattened as they replace the cells that are shed from the surface. Stratum granulosum Stratum spinosum Stratum basale Subcutaneous Layer The subcutaneous layer lies below the dermis and is called the hypodermis. It has a layer of cushioning fat at the base and is also considered the superficial fascia that connects the overlying dermis to underlying muscle. Basement membrane Epidermal Layers The epidermis has five layers: • The stratum corneum • The stratum lucidum • The stratum granulosum • The stratum spinosum • The stratum basale The stratum corneum is the outermost layer of the skin. It offers the body’s first layer of defense against invading microorganisms, ultraviolet light, chemical infiltration, and heat. This is the toughest layer composed of flat, dead skin cells that have become cornified and filled with keratin. The stratum lucidum is a clear layer of cells containing a substance that becomes keratin as the cells ascend up to the corneal layer. The prekeratin substance is called eleidin and is found mostly in the palms and soles. The stratum granulosum is the next layer of flattened cells named for its granular appearance due to the substance keratohyalin, which also later becomes keratin. The stratum spinosum is a larger layer that produces keratin for the epidermis and has spinous processes projecting between adjacent, newly formed keratinocytes. 9. Skin and Subcutaneous Tissue The stratum basale, also called the germinativum, is the last layer of the epidermis composed of a single layer of cuboidal and columnar cells that undergo mitosis. This is where the keratinocytes divide and begin to move upward, becoming cornified as they replace cells from the more superficial layers. Although the epidermis is very thin (about 0.12mm), it is capable of thickening and forming calluses and corns for greater protection in areas that experience constant friction or pressure. The epidermal cells are constantly replaced from deeper skin layers. The average turnover time for the epidermis is about 30 days. Dermal Layers The dermis has two layers: • Papillary • Reticular The uppermost region of the dermis is the papillary layer that contains fingerlike projections interfacing with the epidermis. 224 Comparison of ICD-9-CM and ICD-10-CM Integumentary System Coding Guidelines The Official Coding Guidelines in ICD-9-CM and ICD-10CM contain instructions on coding pressure ulcers. These instructions have changed as follows: • In ICD-10-CM a single code reports both the site and the stage of the pressure ulcer while in ICD-9-CM two codes are required • In ICD-10-CM there are more specific codes for bilateral pressure ulcers of the same site (e.g. hip, buttock, etc), making it easier to identify the site and stage of the pressure ulcer on each side of the body. Detailed instructions on reporting bilateral pressure ulcers using ICD-9-CM are no longer required in ICD-10-CM. ICD-9-CM – Chapter 12: Diseases of the Skin and Subcutaneous Tissue (680-709) ICD-10-CM – Chapter 12: Diseases of Skin and Subcutaneous Tissue (L00-L99) a. Pressure ulcer stage codes a. Pressure ulcer stage codes 1. Pressure ulcer stages 1) Pressure ulcer stages Two codes are needed to completely describe a pressure ulcer: A code from subcategory 707.0, Pressure ulcer, to identify the site of the pressure ulcer and a code from subcategory 707.2, Pressure ulcer stages. The codes in subcategory 707.2, Pressure ulcer stages, are to be used as an additional diagnosis with a code(s) from subcategory 707.0, Pressure Ulcer. Codes from 707.2, Pressure ulcer stages, may not be assigned as a principal or first-listed diagnosis. The pressure ulcer stage codes should only be used with pressure ulcers and not with other types of ulcers (e.g., stasis ulcer). The ICD-9-CM classifies pressure ulcer stages based on severity, which is designated by stages I-IV and unstageable. Codes from category L89, Pressure ulcer, are combination codes that identify the site of the pressure ulcer as well as the stage of the ulcer. The ICD-10-CM classifies pressure ulcer stages based on severity, which is designated by stages 1-4, unspecified stage and unstageable . Assign as many codes from category L89 as needed to identify all the pressure ulcers the patient has, if applicable. Genitourinary System Advanced Anatomy and Physiology for ICD-10-CM Overflow Incontinence Undescended Testicles If the bladder does not empty properly, urine may overflow. This may be caused by weak bladder muscles, a blocked urethra due to a urinary calculi or nerve damage from diabetes or another disease. Also called cryptorchidism, undescended testicles do not descend from the abdomen as they should before birth. Transient Incontinence Urine leaks due to a temporary cause, such as an infection, new medication, restricted mobility and colds. Coding Practice 11.7 ICD-9-CM ICD-10-CM Stress incontinence of 38-year-old woman 625.6 N39.3 Overactive bladder with urge incontinence 596.51 N32.81, N39.41 Mixed incontinence 788.33 N39.46 Overflow incontinence 788.38 N39.490 Questions 11.7 Does gender make a difference in ICD-10-CM code selection? Klinefelter’s syndrome involves abnormal sex chromosomes. In males, there is one X chromosome and one Y chromosome. The Y chromosome contains genetic material with the codes that determine the male gender and related masculine characteristics and other male developmental features. In this syndrome, there is the presence of an extra X chromosome, meaning these individuals have 47 chromosomes instead of 46, which causes abnormal development of the testicles. Coding Practice 11.8 Condition ICD-9-CM ICD-10-CM Hypospadias 752.61 Q54.9 Two-year-old with chordee 752.63 Q54.4 Bilateral undescended testicles 752.51 Q53.20 Klinefelter’s syndrome 758.7 Q98.4 11. Genitourinary System Condition Klinefelter’s Syndrome Questions 11.8 When coding undescended testicles in ICD-10-CM, does laterality make a difference in code selection? Urge incontinence may be a symptom of overactive bladder and general coding guidelines indicate that symptoms of an established condition are not reported additionally. Why is urge incontinence reported with overactive bladder? Section 11.8 – Congenital Anomalies Hypospadias Hypospadias is a congenital anomaly in the urethra of a male in which the urinary meatus is abnormally placed. Instead of the opening at the tip of the glans of the penis, it will be anywhere along the ventral aspect (underside) of the shaft, to the junction of the penis and scrotum or perineum. Hypospadias is commonly associated with chordee and possibly undescended testes. There are different degrees of hypospadias: First degree. The opening is somewhere on the glans penis, but not in the normal area where it is typically located. Second degree. The opening is on the shaft of the penis. Third degree. The opening is on the perineum. Chordee Chordee is where the head of the penis is curved downwards or upwards. This occurs when the connective tissue between the urethral opening and the glans and/or the urethra is shorter than normal. Section 11.9 – Injuries of the Genitourinary Tract Contusions and lacerations are the most common types of injuries to genitourinary tract organs. Lacerations may result from closed injuries or penetrating open wounds. The external genitalia are also subject to crushing and traumatic amputation injuries. Another cause of injury particularly to the ureters is accidental puncture or laceration during a surgical procedure. Renal Trauma Contusion or laceration of the kidney due to blunt or penetrating trauma is the most common type of urinary tract injury. Motor vehicle accidents are the most common cause of renal trauma. Falls from a height and assault are also associated with renal trauma but are less common. Injuries to the kidneys are categorized as minor, moderate or major depending on the extent of the injury which is determined by the size of the contusion or the length of the laceration. Testicular Trauma The testicles are located in the scrotum, which is on the external portion of the body and can be easily subjected to outside trauma because of a lack protection from muscles or bones. This makes it easier for them to be struck, hit, or crushed, especially during contact sports. Injury to the testes can cause severe pain, bruising and/or swelling. 305 Anatomy and Physiology for ICD-10-PCS Introduction Section II provides an overview of ICD-10-PCS and identifies some of the basic coding principles related to this entirely new inpatient procedural coding system. During the development of ICD-10-PCS the goal was to incorporate four major attributes into the coding system – completeness, expandability, multiaxial, and standard terminology. Each of these goals are defined as follows: Completeness – The ability to assign a unique code for all substantially different procedures, including unique codes for procedures that can be performed using different approaches Expandability – The ability to add new unique codes to the coding system in the section and body system where they should reside Multiaxial – The ability to assign codes using independent characters around each individual axis or component of the procedure. For example, if a new surgical approach is used for one of the root operations on a specific body part, a value for the new surgical approach can be added to the approach character without a need to add or change other code characters. Standardized Terminology – The ability to assign a specific meaning to each term. Even though many medical terms have multiple meanings in everyday usage, in ICD-10-PCS each term has been specifically defined and the definition provided for that term is the only definition used in ICD-10-PCS. For example, the term ‘excision’ is defined in most medical dictionaries as the surgical removal of part or all of a structure or organ. However, in ICD-10-PCS excision is defined as “cutting out or off, without replacement, a portion of a body part.” If all of a body part is surgically removed without replacement, the procedure is defined as a ‘resection’ in ICD-10-PCS. In addition, some of the additional anatomy and physiology components that are part of the procedure codes in this new coding system have been introduced. Key elements of ICD-10-PCS include: • Multiaxial seven character alphanumeric code structure • Unique code for all substantially different procedures • Easy incorporation of new codes for new procedures Key elements related to code content include: • Diagnostic information is not included in the procedure description. For example, there are no codes used exclusively Section II Section II for aneurysm, cleft lip, neoplasms, or hernias. Diagnostic information is provided by the corresponding ICD-10-CM diagnosis code • Limited use of “not otherwise specified” (NOS) procedure codes. All existing and new procedures can be reported with at least some level of specificity • Limited use of “not elsewhere classified” (NEC) procedure codes. All significant components of a procedure can be reported using ICD-10-PCS, so NEC procedures codes or values are generally not needed. The exception is the device character. New devices that are not described by any of the existing device values are reported with a value for “other device.” However, in this instance only the device value is specified as “not elsewhere classified.” Other characters still contain precise values for the procedure performed. • All currently performed procedures can be specified in ICD-10-PCS. The frequency with which a procedure is performed is not a deciding factor in whether or not a precise code can be assigned. As was stated earlier, the ICD-10-PCS section is intended to provide only an overview of this new inpatient coding system. Medicare currently has a 238 page manual developed to provide additional guidance on the use of ICD-10-PCS for reporting of inpatient procedures, and other payers will likely provide additional input into reporting guidelines once this coding system is in use. As you study Section II, remember that this coding system replaces only ICD-9-CM Volume 3. CPT codes will still be used for physician coding and facility coding of outpatient services, and HCPCS Level II codes will continue to be used for supplies and other items or services that cannot be captured using CPT. New for 2012 Although the greatest percentage of codes will be reported within the Medical and Surgical Section beginning with the section value of ‘0,’ and it is important to begin with a firm understanding of assigning codes within that section, ICD-10PCS provides two other groups of sections with additional root operations specific to those sections. For the 2012 book, additional material is being presented within existing chapters that enhances and expands the discussion covering the sections, root operations, and body systems that compose the first basic building blocks of ICD- i Body Systems and Body Parts Advanced Anatomy and Physiology for ICD-10-PCS Body Part Designations for Medical Surgical Section In the Medical and Surgical Section, the 4th character represents body parts. These body parts are specific to ICD-10PCS and do not necessarily represent body parts as described in anatomy books or in ICD-10-CM. For example, the liver, which is normally considered one organ, and as such a single body part in most classification systems, has three possible body part designations in ICD-10-PCS. These include: • Right lobe • Left lobe • Liver General Body Part Designation Designation of Body Part With Prefix “Peri” The prefix “peri” means around or surrounding. In some cases there may be a specific character for a body part with the prefix “peri.” For example, the pericardium or pericardial sac is designated as a specific body part and has a specific value assigned in ICD-10-PCS. However, in other cases, the body part preceded by the prefix “peri” may not have a specific value as is the case with perirenal. When a body part is described with the prefix “peri” in the operative report and does not have a specific body part designation in ICD-10-PCS, it is reported with the value for the body part. Example Procedure Percutaneous needle biopsy right perirenal mass 0TB03ZX Excision of Right Kidney, Percutaneous Approach, Diagnostic Each value has the following meaning in reference to the procedure described above: Portion of Body Part Value Character Definition Procedure When the documentation describes a portion of a body part and the body part does not have a specific designation in ICD10-PCS, the whole body part designation is used. For example, if the body part on which the medical or surgical procedure is performed is designated as the alveolar process of the mandible, the character for mandible is assigned because the alveolar process is not specifically identified as a separate body part. 0 Section Medical and Surgical T Body System Urinary System B Root Operation Excision 0 Body Part Right Kidney 3 Approach Percutaneous Z Device No Device Example X Qualifier Diagnostic Procedure Percutaneous core needle biopsy right alveolar process of mandible 0NBT3ZX Excision of Right Mandible, Percutaneous Approach, Diagnostic Each value has the following meaning in reference to the procedure described above: Specific Body Part Rules There are specific coding rules for some body parts in four body systems—cardiovascular, nervous, musculoskeletal, and integumentary. Cardiovascular System Value Character Definition Procedure 0 Section Medical and Surgical N Body System Head and Facial Bones B Root Operation Excision T Body Part Right Mandible 3 Approach Percutaneous Coronary Arteries In ICD-10-PCS, the coronary arteries are classified as a single body part, not by the specific coronary artery treated. This means that there are no separate values for the major coronary arteries. There are, however, separate values that identify the number of arteries treated when the same procedure is performed on multiple coronary arteries. Z Device No Device Example 1 X Qualifier Diagnostic Procedure Percutaneous transluminal coronary artery angioplasty (PTCA) with stent placement, left anterior descending and left circumflex arteries 02713DZ Dilation of Coronary Artery, Two Sites with Intraluminal Device, Percutaneous Approach Note: Biopsies are reported with a code for excision which is defined in ICD-10-PCS as “cutting out or off, without replacement, a portion of a body part.” Biopsies are included in excision because a portion of the body part is cut out. The qualifier ‘X’ is what 2. Body Systems and Body Parts General body part characters are considered “not otherwise specified” codes, also referred to as NOS codes. When the organ or body part has been subdivided into more specific parts, the most specific value should be assigned whenever possible. The general body part designation should only be used when the documentation does not support assignment of a more specific code. For example, the general body part value, liver, should only be assigned when the documentation in the medical record does not indicate the precise part of the liver and the detail cannot be obtained from the physician. identifies this procedure as a biopsy since biopsy is performed for diagnostic rather than therapeutic purposes. Core needle biopsy “cuts out” a small amount of alveolar bone. It is considered a percutaneous procedure because it is performed through the skin without direct visualization of the bone. 13 Chapter 4 Devices and Qualifiers Chapter Objectives After studying this chapter, you should be able to: • Define the terms Device and Qualifier as they are used in ICD-10-PCS • Explain how device and qualifier values differ from values for the first five characters in the code • Explain what the value ‘Z’ means when assigned as the value for a device (6th character) or a qualifier (7th character. • Identify the four general types of devices • Provide specific examples of each general type of device • Identify items that are not considered devices for ICD-10PCS coding purposes • Identify the root operations that always require a specific value for the device character • Identify root operations that may require a specific value for the device character • Provide examples of root operations that may require the use of a qualifier • Explain how a biopsy is identified when the root operation is Excision • Provide examples of the types of attributes that are captured by the qualifier value Overview Device In the medical and surgical, obstetrics, and placement sections of ICD-10-PCS, the 6th character indicates whether a device was used or placed in the body during the procedure. In order to qualify as a device, the device must remain in place after completion of the procedure. As with most terms in ICD-10-PCS, the term device is used to describe some items that have not traditionally been considered devices. For example, a biological graft, such as a skin graft, is considered a device for ICD-10-PCS coding purposes. Not all procedures require the use of a device, so the value ‘Z’ is used to indicate “no device” if the device value does not apply to the procedure performed. Most devices have a specific value that describes the device. However, new devices are frequently developed so there is an “other device” value that should be used until a more specific new device value can be added to the coding system. The value ‘Y’ is used when none of the available device values describe the device used. The ‘Y’ is used for other devices until ICD-10-PCS is updated with a specific value for the new device. There are four general types of devices, which are classified based on the function the device performs. Types of devices include: • Biological or synthetic material that takes the place of all or a portion of a body part • Biological or synthetic material that assists or prevents a physiological function • Therapeutic material that is not absorbed by, eliminated by, or incorporated into a body part • Mechanical or electronic appliances used to assist, monitor, take the place of, or prevent a physiological function Examples are provided in the next sections of root operations that require the use of a device to perform the functions described above. 4. Devices and Qualifiers This chapter provides information on devices and qualifier values used in ICD-10-PCS. Device and qualifier characters are used to identify additional attributes of the procedure. In the medical and surgical section, as well as the obstetrics and placement sections, devices are represented by the 6th character in the code and qualifiers by the 7th character. A device character is assigned when a device is used or placed in the body during the procedure and remains in the body at the completion of the procedure. A qualify is used to identify any additional attributes of the procedure that have not been captured by the first 6 characters of the code. All codes are assigned a specific value for the 1st through 5th characters. The device and qualifier characters are the only characters that do not have a specific value for every procedure, because the device (6th character) and the qualifier (7th character) are not applicable to all procedures. In ICD-10-PCS when a device is not used or a qualifying attribute does not exist, the value ‘Z’ is used for the 6th and/or 7th characters. When a ‘Z’ is present in the 6th character it indicates that no device was used. When a ‘Z’ is present in the 7th character it indicates that there are no additional qualifying attributes of the procedure. In other words, the value ‘Z’ in the 6th and/or 7th character of the code indicates that a specific device and/or qualifier does not apply to the procedure. 25 Medical and Surgical Section Coding Advanced Anatomy and Physiology for ICD-10-PCS 6. Medical and Surgical Section Coding • Endocrine • Integumentary – Skin and breast – Subcutaneous tissue and fascia Value Body Part • Musculoskeletal System – Muscles – Tendons – Bursae and ligaments – Head and facial bones – Upper bones – Lower bones – Upper joints – Lower joints 3 Epidural Space Cranial epidural space Extradural space Spinal epidural space 4 Subdural Space Cranial subdural space Spinal subdural space 5 Subarachnoid Space Cranial subarachnoid space Spinal subarachnoid space 6 Cerebral Ventricle Aqueduct of Sylvius Cerebral aqueduct (sylvius) Choroid plexus Ependyma Foramen of Munro (intraventricular) Fourth ventricle Interventricular foramen (Munro) Left lateral ventricle Right lateral ventricle Third ventricle 7 Cerebral Hemisphere Frontal lobe Occipital lobe Parietal lobe Temporal lobe 8 Basal Ganglia Basal nuclei Claustrum Corpus striatum Globus pallidus Substantia nigra Subthalamic nucleus • Genitourinary system – Urinary system – Female reproductive system – Male reproductive system • Anatomical Regions – General – Upper Extremities – Lower Extremities Nervous System Included Structures/ Synonymous Terms In ICD-10-PCS, nervous system medical and surgical procedures are those performed on the central nervous system (0) and the peripheral nervous system (1). Both of these body systems are then subdivided into body parts. The body part designations include branches or portions of the body part that do not have a more specific designation of their own. The tables in this section include all body part values for the designated ICD-10-PCS body system being discussed. These tables can be used along with an ICD-10-PCS coding reference to identify the correct code for medical and surgical procedures described in this section. 9 Thalamus Epithalamus Geniculate nucleus Metathalamus Pulvinar A Hypothalamus Mammillary body Central Nervous System B Pons Apneustic center Basis pontis Locus ceruleus Pneumotaxic center Pontine tegmentum Superior olivary nucleus C Cerebellum Culmen D Medulla Oblongata Myencephalon E Cranial Nerve N/A F Olfactory Nerve CN I First cranial nerve Olfactory bulb G Optic Nerve CN II Optic chiasma Second cranial nerve H Oculomotor Nerve CN III Third cranial nerve The central nervous system contains the following body parts as defined in ICD-10-PCS: Value Body Part 0 Brain Included Structures/ Synonymous Terms Cerebrum Corpus callosum Encephalon 1 Cerebral Meninges Arachnoid mater Leptomeninges Pia Mater 2 Dura Mater Cranial dura mater Dentate ligament Diaphragma sellae Falx cerebri Spinal dura mater Tentorium cerebelli 40 Advanced Anatomy and Physiology for ICD-10-PCS Substances Administered in Circulatory Body System Bone Marrow (G) Fresh Plasma (L) White Cells (Q) Antihemophilic Factors (V) Whole Blood (H) Plasma Platelets (R) Cryoprecipitate (M) Factor IX (W) Serum Albumin (J) Red Blood Cells (N) Globulin (S) Stem Cells, Cord Blood (X) Frozen Plasma (K) Frozen Red Cells (P) Fibrinogen (T) Stem Cells, Hematopoietic (Y) Injectable steroids (anti-inflammatories), reported with value 3, are often mixed with a local anesthetic (value B) and administered for pain control. When the substance is mixed, the correct value is still 3 for anti-inflammatory as the local anesthetic is only added to control or lessen the pain of the steroid injection itself. Administrative Qualifiers Additional qualifier values for character 7 that further identify the substance reported with character 6 are shown below. Substance Qualifier Antineoplastic 2 High Dose Interleukin-2 3 Low Dose Interleukin-2 4 Liquid Brachytherapy Radioisotope 5 Other Antineoplastic M Monoclonal Antibody P Clofarabine Thrombolytic 6 Recombinant Human-Activated Protein C 7 other Thrombolytic Anti-infective 8 Oxazolidinones 9 Other Anti-infectives Other Therapeutic Substance B Recombinant Bone Morphogenetic Protein C Other Substance Gas D Nitric Oxide F Other Gas Hormone G Insulin H Human B-Type Natriuretic Peptide J Other Hormone Immunotherapeutic K Immunostimulator L Immunosuppressive Pancreatic Islet Cells 0 Autologous 1 Nonautologous Coding Examples Whole blood transfusion through line in peripheral vein of right arm: CODE 30233H0 3 Administration 0 Circulatory 2 Transfusion 3 Peripheral Vein 3 Percutaneous H Whole Blood 0 Autologous Autologous bone marrow transplant via previously inserted central venous catheter: CODE 30243G0 3 Administration 0 Circulatory 2 Transfusion 4 Central Vein 3 Percutaneous G Bone Marrow 0 Autologous Nasal spray flu vaccination against H1N1 virus: CODE 3E0974Z 3 Administration E Physiological Systems and Anatomical Regions 0 Introduction 9 Nose 7 Via Natural or Artificial Opening 4 Serum, Toxoid and Vaccine Z No Qualifier Peritoneal dialysis: CODE 3E1M39Z 7. Coding in the Medical/ Surgical-Related Sections As in other sections, qualifiers provide additional information about the procedure that is not fully captured in the other components. In the administration section, the qualifiers identify the type of substance more specifically within the broad category reported in character 6. For substances reported with transfusion in the circulatory system, the qualifier values of 0 and 1 identify the blood or blood component as either autologous or nonautologous, respectively. Coding in the Medical/Surgical-Related Sections 3 Administration E Physiological Systems and Anatomical Regions 1 Irrigation M Peritoneal Cavity 3 Percutaneous 9 Dialysate Z No Qualifier Epidural cortisone injection with local anesthetic for pain control of sciatica from herniated lumbar disc: CODE 3E0S33Z 3 Administration E Physiological Systems and Anatomical Regions 0 Introduction S Epidural Space 3 Percutaneous 3 Anti-inflammatory Z No Qualifier 101 Coding in the Medical/Surgical-Related Sections Advanced Anatomy and Physiology for ICD-10-PCS Section 6 Extracorporeal Therapies The seven characters that comprise codes in the extracorporeal therapies section are: Character Character Character Character Character Character Character 1 2 3 4 5 6 7 Section Body Root Body System Operation System Duration Function Qualifier The extracorporeal therapies section contains 6 of the 7 components that compose codes in the extracorporeal assistance and performance section, except that character 6 does not need to describe any function being performed or assisted. Character 6 is designated as another qualifier, but functions basically like a kind of place holder for the sixth character in that it contains only one value, ‘Z’ for no qualifier, since there is no additional information to be reported for therapies in this section by character 6. Root Operations in Extracorporeal Therapies This section is composed of 10 root operations that are unique to this section: Decompression describes an individual occurrence procedure done in a hyperbaric chamber to treat one specific diagnosis— decompression sickness, or the bends, in divers. Although hyperbaric oxygenation is also done for therapeutic purposes in wound care, that is considered assisting the circulatory system in its basic function of oxygenating the blood, and not for eliminating undissolved gases from body fluids, and is coded to the extracorporeal assistance section. Whole body hyperthermia is a treatment used for two purposes— both to correct temperature imbalance and as an adjunct treatment for cancer patients receiving radiation. Hyperthermia Phototherapy treatment may be done on the skin or on the circulatory system by exposing the blood to light rays outside the body via a machine that recirculates the blood and returns it to the body after the light exposure. This is different from ultraviolet light therapy, often called ultraviolet light phototherapy, which is performed only on the skin using the therapeutic properties of the electromagnetic radiation in ultraviolet light with a wavelength shorter than that of visible light (beyond what is perceptible to humans as the color violet), but longer than that found in x-rays. Light therapy that involves the use of visible light rays on the skin is coded to phototherapy. Pheresis is done for two main reasons—to separate out a blood component that is produced in excess by the body in certain diseases, such as leukemia or thrombocytosis, and to remove a blood product from a donor for transfusion. Pheresis includes the separation and removal of a given blood component. The term photopheresis is often used to describe the ultraviolet radiation of blood that is removed from the patient, separated by centrifugation, exposed to ultraviolet light, and then infused back into the patient. This is coded as phototherapy of the circulatory system in ICD-10-PCS, not as pheresis. Extracorporeal shock wave therapy (ESWT) in this section encompasses only that which is performed on the musculoskeletal system for conditions such as plantar fasciitis, soft tissue injuries, or calcifying tendinitis. This is also known as orthotripsy. ESWT used as lithotripsy in treating kidney stones is coded to the root operation fragmentation in the medical and surgical section. 7. Coding in the Medical/ Surgical-Related Sections • Atmospheric Control (0)—Extracorporeal control of atmospheric pressure and composition • Decompression (1) —Extracorporeal elimination of undissolved gas from body fluids • Electromagnetic Therapy (2) —Extracorporeal treatment by electromagnetic rays • Hyperthermia, Whole Body (3) —Extracorporeal raising of body temperature • Hypothermia (4) —Extracorporeal lowering of body temperature • Pheresis (5) —Extracorporeal separation of blood products • Phototherapy (6) —Extracorporeal treatment by light rays • Ultrasound Therapy (7) —Extracorporeal treatment by ultrasound • Ultraviolet Light Therapy (8) —Extracorporeal treatment by ultraviolet light • Shock Wave Therapy (9) —Extracorporeal treatment by shock waves These therapies are defined for ICD-10-PCS purposes with meanings that remain consistent with what is commonly understood in the medical practice community. For the coder, there are some very important points to note about the definitions of these root operations. The coder must understand these differences in definition in order to assign the correct code in the right section to the right root operation. is used to enhance the effective of cancer treatments by making some of the cancer cells more susceptible to radiation as well as harming some other cancer cells that the radiation cannot damage. When whole body hyperthermia is used for this purpose, it is not coded in this section as an extracorporeal therapy, but in the ancillary group of codes within section D, Radiation Oncology. Only hyperthermia performed to treat body temperature imbalance, such as in prolonged exposure to the elements or extreme cold, is coded in this section. Body Systems in Extracorporeal Therapies There is a single body system for all extracorporeal procedures. The only one identified is ‘Physiological Systems,’ reported with value ‘A’ as the second character. Since there are only a few types of extracorporeal therapies performed on certain body systems, there are only a few values for identifying more specific body systems reported in character 4, which are: • • • • • Value 0—Skin Value 1—Urinary Value 2—Central Nervous Value 3—Musculoskeletal Value 5—Circulatory Duration and Qualifiers for Extracorporeal Therapies Character 5 reports the duration of the extracorporeal therapeutic procedure by reporting whether it was a single occurrence (value 0) or a multiple occurrence (value 1). These are the only two values for character 6 in this section. 105 Coding in the Ancillary Sections Advanced Anatomy and Physiology for ICD-10-PCS procedure may be. The values listed for character 4 do not always identify one specific organ, or a separate bone or gland normally considered as an individual anatomical part of the system. For example, the skin, subcutaneous tissue, and breast body system includes values for single and multiple mammary ducts of the left and right. Tendons of the upper and lower extremities are included in the connective tissue system. The urinary system includes a unique value for ileal diversion loop and one for ileal loop, ureters, and kidneys. Imaging Qualifiers Both character 6 and character 7 identify qualifiers that may add more information about the imaging procedure. For most imaging codes, the qualifier reported with character 7 is not specified, but occasionally it is reported to define whether the procedure was intraoperative, intravascular, or transesophageal. It may also specify densitometry or guidance. A character 6 qualifier is used mainly to report when the image was taken without contrast followed by another image with contrast—value 0 Unenhanced and Enhanced. Character 6 qualifiers also report the use of laser (1), and intravascular optical coherence (2). Coding Examples X-ray right wrist: CODE BP0LZZZ 0 Imaging P Non-Axial Upper Bones 0 Plain Radiography L Wrist, Right Z No Contrast Z No Qualifier Z No Qualifier Section C Nuclear Medicine The seven characters that comprise codes in the nuclear medicine section are: Character Character Character Character Character Character Character 1 2 3 4 5 6 7 Section Transesophageal echocardiogram: CODE B246ZZ4 B Imaging 2 Heart 4 Ultrasonography 6 Heart, Right and Left Z No Contrast Z No Qualifier 4 Transesophageal Qualifier Nuclear Medicine Root Types Nuclear medicine codes represent procedures that introduce radioactive material into the body in order to create an image for diagnosis, assessing metabolic functions, and for treating diseased conditions. There are seven root types of procedures defined in nuclear medicine and reported with character 3: Value Root Operation Definition 1 Planar Nuclear Medicine Imaging Introduction of radioactive materials into the body for single plane display of images developed from the capture of radioactive emissions 2 Tomographic (Tomo) Nuclear Medicine Imaging Introduction or radioactive materials into the body for three-dimensional display of images developed from the capture of radioactive emissions 3 Positron Emission Tomography (PET) Introduction of radioactive materials into the body for three-dimensional display of images developed from the simultaneous capture, 180 degrees apart, of radioactive emissions 4 Nonimaging Nuclear Medicine Uptake Introduction of radioactive materials into the body for measurements of organ function, from the detection of radioactive emissions 5 Nonimaging Nuclear Medicine Probe Introduction of radioactive materials into the body for the study of distribution and fate of certain substances by the detection of radioactive emissions from an external source 6 Nonimaging Nuclear Medicine Assay Introduction of radioactive materials into the body for the study of body fluids and blood elements, by the detection of radioactive emissions 7 Systemic Nuclear Medicine Therapy Introduction of unsealed radioactive materials into the body for treatment 8. Coding in the Ancillary Sections B Imaging 0 Central Nervous System 2 Computerized Tomography 0 Brain 1 Low Osmolar 0 Unenhanced and Enhanced Z No Qualifier Device The seven characters that compose nuclear medicine codes differ from those that compose imaging codes in the meaning of character 5. In this section, character 5 defines the radionuclide used in the nuclear medicine procedure instead of reporting contrast material. The other definitions remain the same although qualifier values in characters 6 and 7 are not specified in nuclear medicine codes and always retain a value of Z, no qualifier. CT Scan of the brain without contrast followed by images with low osmolar contrast: CODE B02010Z Body Root Type Body Part RadionuSystem clide Understanding the differences in the root types of operations is critical for assigning the correct code so the coder should carefully review the definitions and purposes of the nuclear 113