APPENDIX A. ICD-9 codes of operations included in dataset ICD9 - Principal Procedure 39.24-39.26 43.0-43.9 44.2x-44.9x 45.0x-45.95 46.0-46.94 50.5x 50.0-50. 51.13-51.9x 52.09-52.99 54.1x-54.9x 55.01-55.8x 55.6x 56.34-56.89 57.12-57.5x Group Description Abdominal Vascular Incision and excision of stomach Incision and excision of stomach Incision, excision, and anastomosis of intestine Other operations on intestine Liver transplant Operations on liver Operations on gallbladder and biliary tract Operations on pancreas Other operations on abdominal region Operations on kidney Kidney transplant Operations on ureter Operations on urinary bladder Appendix B: ICD9 codes for MAJOR COMPLICATIONS Complication Respiratory_Failure Respiratory_Failure Respiratory_Failure Respiratory_Failure Respiratory_Failure Cardiac complications Cardiac complications Cardiac complications Cardiac complications Cardiac complications Cardiac complications Cardiac complications Cardiac complications Cardiac complications Cardiac complications Cardiac complications Cardiac complications Cardiac complications Cardiac complications Major GI dysfunction Major GI dysfunction Major GI dysfunction Major GI dysfunction Major GI dysfunction Major GI dysfunction Major GI dysfunction Major GI dysfunction Major GI dysfunction Major GI dysfunction ICD-9 code (Diag. or Proc) 96.7x 93.9x 518.5 31.1 31.2 37.62 37.66 37.68 97.44 427.0 427.1 427.3x 427.4x 37.21 37.22 37.23 37.94 99.61 99.62 574.0x 574.3x 575.0 557.0 557.9 578.xx 531.0x 531.2x 532.0x 532.2x ICD-9 Description Comment Other continuous invasive mechanical ventilation Respiratory therapy Pulmonary insufficiency following trauma and surgery Temporary tracheostomy Permanent tracheostomy Insertion of non-implantable heart assist system Insertion of implantable heart assist system Insertion of percutaneous external heart assist device Nonoperative removal of heart assist systerm Paroxysmal supraventricular tachycardia Paroxysmal ventricular tachycardia atrial fib and flutter, Ventricular fibrillation and flutter Right heart cardiac catheterization Left heart cardiac catheterization combined right and left heart cardiac catheterization ICD insertion Atrial cardioversion Other electirc countershock of heart Calculus of gallbladder with acute cholecystitis Calculus of bile duct with acute cholecystitis Acute cholecystitis Acute vascular insufficiency of intestine unspecified vascular insufficiency of intestine GI bleed Acute gastric ulcer with hemorrhage Acute gastric ulcer with hemorrhage and perforation Acute duodenal ulcer with hemorrhage Acute duodenal ulcer with hemorrhage and perforation post-op > 24 hours post-op > 24 hours post-op > 24 hours post-op > 24 hours Anytime post-op during hospitalization cardioversion within first 72 hrs within 72 hours of surgery cardioversion within first 72 hrs Anytime post-op during hospitalization Anytime post-op during hospitalization Anytime post-op during hospitalization within 7 days of surgery within 72 hours of surgery, requiring treatment within 72 hours of surgery, requiring treatment Anytime post-op during hospitalization Anytime post-op during hospitalization Anytime post-op during hospitalization Anytime post-op during hospitalization Anytime post-op during hospitalization Anytime post-op during hospitalization Anytime post-op during hospitalization Anytime post-op during hospitalization Anytime post-op during hospitalization Anytime post-op during hospitalization Major GI dysfunction Major GI dysfunction Major GI dysfunction Major GI dysfunction Hemorrhage Hemorrhage Infectious complications Infectious complications Infectious complications Infectious complications Infectious complications Infectious complications Infectious complications Infectious complications Infectious complications Infectious complications Infectious complications Infectious complications Infectious complications Infectious complications Infectious 533.0x 533.2x 530.12 535.xx 998.11 998.12 038.xx Acute peptic ulcer with hemorrhage Acute peptic ulcer with hemorrhage and perforation Acute esophagitis gastritis and duodentitis hemorrhage complicating surgical procedure hematoma complicating surgical procedure septicemia Anytime post-op during hospitalization Anytime post-op during hospitalization Anytime post-op during hospitalization Anytime post-op during hospitalization intra or post-op intra or post-op post-op 790.7 bacteremia post-op 041.xx bacterial infections unspecified site post-op 997.31 ventilator associated pneumonia post-op 481 IV antibiotic after Day 1 482.8x Pneumococcal pneumonia [Streptococcus pneumoniae pneumonia] Methicillin susceptible pneumonia due to Staphylococcus aureus Pneumonia due to other specified bacteria 484.xx Pneumonia in infectious diseases classified elsewhere IV antibiotic after Day 1 486 Pneumonia, organism unspecified IV antibiotic after Day 1 510.xx Empyema IV antibiotic after Day 1 567.22 peritoneal abscess 567.29 Other suppurative peritonitis 569.5x Abscess of intestine IV antibiotic after Day 1 996.xx Complications peculiar to certain specified procedures mediastinitis Anytime post-op during hospitalization 482.41 519.2 IV antibiotic after Day 1 IV antibiotic after Day 1 complications Infectious 995.91 Sepsis IV antibiotic after Day 1 complications Infectious 995.92 Severe sepsis IV antibiotic after Day 1 complications Infectious 998.3x disruption of wound/dehiscence complications Renal Failure 584.xx Acute renal failure Look for 39.95 (dialysis) Renal Failure 586 Renal failure, unspecified Renal Failure 588.8 Other specified disorders resulting from impaired renal function Renal Failure 588.9 Unspecified disorder resulting from impaired renal function Renal Failure 639.3 Renal failure, complication following abortion and ectopic and molar pregnancy Renal Failure 39.95 dialysis Renal Failure 38.95 venous catheter for renal dialysis Neurologic 431 Intracerebral hemorrhage complication Neurologic 434.1x Cerebral embolism complication Neurologic 434.9x Cerebral artery occlusion, unspecified complication Neurologic 997.02 Iatrogenic cerebrovascualr infarction or hemorrhage, postoperative stroke complication Death Readmission within time frame all cause within 30 days, print out PDx and DRG