Table 2.
ICD-9-CM Codes Used to Define Comorbid Conditions
| Disease | ICD-9-CM Diagnosis Codes | ICD-9-CM V Codes |
|---|---|---|
| MI | 410; 412 | |
| CHF | 398.91; 422; 425; 428; 402.X1; 404.x1; 404.x3 | V42.1 |
| Other ASHD | 411; 413; 414 | V45.81; V45.82 |
| Cardiac (other) | 420 to 421; 423 to 424; 429; 785.0 to 785.3 | V42.2; V43.3 |
| CVA/TIA | 430 to 438 | |
| PVD | 440 to 444; 447; 451 to 453; 557 | |
| Anemia | 280 to 285 | |
| Cancer | 140 to 172; 174 to 208; 230 to 231; 233 to 234 | |
| COPD | 491 to 494; 496; 510 | |
| Diabetes | 250; 357.2; 362.0x; 366.41 | |
| GI disease | 456.0 to 456.2; 530.7; 531 to 534; 569.84; 569.85; 578 | |
| Hypertension | 362.11; 401.x to 405.x; 437.2 | |
| Liver disease | 570; 571; 572.1; 572.4; 573.1 to 573.3 | V42.7 |
ASHD indicates atherosclerotic heart disease; CHF, congestive heart failure; COPD, chronic obstructive pulmonary disease; CVA/TIA, cerebrovascular accident/transient ischemic attack; GI, gastrointestinal; ICD-9-CM, International Classification of Diseases, Ninth Revision, Clinical Modification; MI, myocardial infarction; and PVD, peripheral vascular disease.