Appendix C.
Diagnosis Codes for Adverse Events
| Event | ICD-9a Code | Description |
|---|---|---|
| Transient ischemic attack | 435.8 | Other specified transient cerebral ischemia |
| 435.9 | Unspecified transient cerebral ischemia | |
| Cerebrovascular accident | 430 | Subarachnoid hemorrhage |
| 431 | Intracerebral hemorrhage | |
| 432.0 | Nontraumatic extradural hemorrhage | |
| 432.1 | Subdural hemorrhage | |
| 432.9 | Unspecified intracranial hemorrhage | |
| 433.01 | Occlusion and stenosis, basilar artery, with cerebral infarction | |
| 433.11 | Occlusion and stenosis, carotid artery, with cerebral infarction | |
| 433.21 | Occlusion and stenosis, vertebral artery, with cerebral infarction | |
| 433.31 | Occlusion and stenosis, multiple and bilateral precerebral arteries, with cerebral infarction | |
| 433.81 | Occlusion and stenosis, other specified precerebral artery, with cerebral infarction | |
| 433.91 | Occlusion and stenosis, unspecified precerebral artery, with cerebral infarction | |
| 434.01 | Cerebral thrombosis, with cerebral infarction | |
| 434.11 | Cerebral embolism, with cerebral infarction | |
| 434.91 | Cerebral artery occlusion, unspecified, with cerebral infarction | |
| 997.02 | Iatrogenic cerebrovascular infarction or hemorrhage | |
| Acute myocardial infarction | 410.01 | Acute myocardial infarction, anterolateral wall |
| 410.11 | Acute myocardial infarction, other anterior wall | |
| 410.21 | Acute myocardial infarction, inferolateral wall | |
| 410.31 | Acute myocardial infarction, inferoposterior wall | |
| 410.41 | Acute myocardial infarction, other inferior wall | |
| 410.51 | Acute myocardial infarction, other lateral wall | |
| 410.61 | Acute myocardial infarction, true posterior wall | |
| 410.71 | Acute myocardial infarction, subendocardial (NSTEMIa) | |
| 410.81 | Acute myocardial infarction, other sites | |
| 410.91 | Acute myocardial infarction, unspecified site | |
| Pneumothorax | 512.0 | Spontaneous tension pneumothorax |
| 512.1 | Iatrogenic pneumothorax | |
| 512.8 | Other spontaneous pneumothorax | |
| Pulmonary embolism | 415.1 | Pulmonary embolism and infarction |
| 415.11 | Iatrogenic pulmonary embolism and infarction | |
| 415.12 | Septic pulmonary embolism | |
| 415.19 | Other pulmonary embolism and infarction | |
| Other embolism | 453.4 | Acute venous embolism and thrombosis of deep vessels of lower extremity |
| 453.41 | Acute venous embolism and thrombosis of deep vessels of proximal lower extremity | |
| 453.42 | Acute venous embolism and thrombosis of deep vessels of distal lower extremity | |
| 453.8 | Acute venous embolism and thrombosis of other specified veins | |
| 453.9 | Other venous embolism and thrombosis of unspecified site | |
| Operative complication | 997.1 | Cardiac complications |
| 997.2 | Peripheral vascular complications | |
| 997.3 | Respiratory complications | |
| 997.31 | Ventilator associated pneumonia | |
| 997.39 | Other respiratory complications | |
| 997.4 | Digestive system | |
| 997.5 | Urinary tract | |
| 997.7 | Vascular complications of other vessels | |
| 998 | Other complications of procedures | |
| 998.x | Other complications of procedures | |
| 998.xx | Other complications of procedures | |
| Other adverse events | 997.4 | Digestive system complications |
| 789.4x | Abdominal rigidity/tenderness | |
| 789.6x | Abdominal rigidity/tenderness | |
| 536.2 | Nausea and vomiting nausea | |
| 564.3 | Nausea and vomiting nausea | |
| 787.0x | Nausea and vomiting nausea | |
| 536.3 | Gastroparesis paralytic ileus | |
| 560.1 | Gastroparesis paralytic ileus | |
| 567.9 | Peritonitis not specified | |
| 567.8x | Peritonitis not specified | |
| 576.2 | Bile duct obstruction | |
| 576.3 | Bile duct perforation | |
| 576.4 | Bile duct fistula |
a
ICD-9=International Classification of Diseases, Ninth Revision; NSTEMI=non–ST-segment elevation myocardial infarction.