Table 1 Comorbidities and their associated classification codes*
Comorbidity | ICD-9 | ICD-10 |
|---|---|---|
Mental health comorbidities | ||
 Any mental health dis. | 290–319 | F00-F99 |
 Substance abuse | 291, 292, 303, 304, 305 | F10-F19, F55 |
 Dementia | 290, 291, 294 | F00-F06, F09, F10 |
 Other mental health dis. | 290–319 except 290–292, 294, 303, 304, 305 | F00-F99 except F00-F06, F09 -F19, F55 |
Physical comorbidities | ||
 Complication of diabetes | 250.1–250.9 | E10-E14 not E10.9 |
 High blood pressure | 401–405 | I10-I15 |
 Dyslipidemia | 272 | E78, E75.2–3–5-6, E77.0–9, E88.1–2, H026 |
 Injury | 800–999 | S00-T99 |
Cardiovascular disease (CVD): | ||
 Myocardial infarction | 410, 411 | I20.0, I21, I22, I24, I51.3 |
 Congestive heart failure | 298, 402, 428 | I09.0, I11, I50 |
 Peripheral vascular disease | 440–447 | I70-I77 |
 Cerebrovascular disease | 430–435 | G45.0-G45.2, G45.4, G45.8, G45.9, I60-I62 |
 Chronic obstructive pulmonary disease (COPD) | 491–493 | J41-J45 |
 Connective tissue disease | 710, 714, 725 | M05, M06, M08, M09, M12, M32-M36, L871 |
 Ulcer disease | 531–534 | K25-K28 |
 Liver disease | 571, 573 | K70, K71, K73-K77 |
070, 570, 572 | B15-B19, K72 | |
 Renal disease | 403–404, 580–586 | I12-I13, N00, N01, N03-N05, N07, N08, N14, N17-N19, N150, N16.3, N29.0 |
Cancer: | ||
 Any tumor | 140–195 | C00-C76 |
 Leukemia | 204–208 | C91-C95 |
 Lymphoma | 200–203 | C81-C86, C88, C90, C96 |
 Metastatic solid tumor | 196–199 | C77-C80, C97 |