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Appendix A: ICD-9 Codes for Complications
ICD-9 Diagnosis Code
Description
Cardiac Complications
997.1, 410.0-410.9, 998.0
Cardiac complications, acute myocardial infarction
Respiratory Complications
997.3
415.1
Respiratory complications from a procedure (pneumonia,
Mendelson’s)
Respiratory complications, pulmonary embolism
Peripheral Vascular Complications
997.2
Peripheral vascular complications (includes phlebitis,
thrombophlebitis)
CNS Complications
997.0
997.00
997.01
997.09
Nervous system complications
Nervous system complications, unspecified
Central nervous system complication: anoxic brain damage or
cerebral hypoxia (not stroke or infarction 997.02)
Other nervous system complications
Complications of Hematomas
998.1
998.11
998.12
998.13
Complications of hematoma etc.
Hemorrhage complicating a procedure
Hematoma complicating a procedure
Seroma complicating a procedure
Complication of accidental cut, puncture or hemorrhage during a procedure
998.2
Accidental puncture or laceration during a procedure
E870.0
Accidental puncture or laceration during a surgical operation
Complication of operative wound
998.3
998.31
998.32
998.83
Disruption of operative wound
Disruption of internal operation wound
Disruption of external operation wound
Non-healing surgical wound
Postoperative Infection
998.5, 999.3
998.51
998.59
Postoperative infections
Infected postoperative seroma
Other postoperative infection (abscess)
Other Complications
998.8
998.89
998.9
999.9
E878.8
E878.9
Other specified complications of procedures, NEC
Other specified complications
Unspecified complication of procedure, not elsewhere classified
Unspecified or unclassified complications of medical care,
(NEC); unspecified misadventure of medical care
Surgical operation and other surgical procedures as the cause of
abnormal reaction of patient, or of later complication, without mention of
misadventure at the time of operations; other specified surgical
operations and procedures
Surgical operation and other surgical procedures as the cause of
abnormal reaction of patient, or of later complication, without mention of
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misadventure at the time of operations; unspecified surgical operations
and procedures
CSF Leak or Persistent Fistula
ICD-9 Procedure Code
02.12
03.95
ICD-9 Diagnosis Code
CSF leak
349.0
998.6
Carotid or vertebral injury
900.00
900.01
900.02
900.03
900.82
900.89
900.9
997.02
954.0
Hoarseness
478.30
478.31
478.32
478.33
478.34
784.4
Dysphagia
787.2
Description
Other repair of cerebral meninges
Spinal blood patch
Description
Reaction to spinal or lumbar puncture
Persistent postoperative fistula, not elsewhere classified
Injury to blood vessels of head and neck; carotid artery,
unspecified
Injury to blood vessels of head and neck; common carotid artery
Injury to blood vessels of head and neck; external carotid artery
Injury to blood vessels of head and neck; internal carotid artery
Injury to blood vessels of head and neck; multiple vessels
Injury to blood vessels of head and neck; other
Injury to blood vessels of head and neck; unspecified
Iatrogenic cerebrovascular infarction or hemorrhage;
postoperative stroke
Injury to cervical sympathetic nerves (Horner’s syndrome)
Paralysis of vocal cords or larynx, unspecified
Paralysis of vocal cords or larynx; unilateral, partial
Paralysis of vocal cords or larynx; unilateral, complete
Paralysis of vocal cords or larynx; bilateral, partial
Paralysis of vocal cords or larynx; bilateral, complete
Voice disturbance; unspecified, aphonia, other (including
hoarseness)
Dysphagia, difficulty in swallowing