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Table 1 International classification of diseases, 9th edition, clinical modification (ICD-9-CM) codes used to identify conditions

From: Misclassification of incident conditions using claims data: impact of varying the period used to exclude pre-existing disease

Condition Code type Codes
Cerebrovascular disease ICD-9-CM diagnosis 430-437.1, 437.3-438.xx
Congestive heart failure ICD-9-CM diagnosis 428.xx, 398.91, 402.01, 402.11, 402.91, 404.01, 404.03, 404.11, 404.13, 404.91, 404.93
Chronic obstructive pulmonary disease ICD-9-CM diagnosis 491.x-492.x, 496
Depression ICD-9-CM diagnosis 296.2x, 296.3x, 298.0, 300.4, 309.0, 309.1, 309.28, 311
Diabetes ICD-9-CM diagnosis 250.xx, 357.2, 362.0x, 366.41, 648.0x
Hip fracture ICD-9-CM diagnosis 820.xx
Hypertension ICD-9-CM diagnosis 401.xx-405.xx, 437.2
Liver disease ICD-9-CM diagnosis 571.2, 571.4-571.49, 571.5, 571.6, 571.8, 571.9, 572.2-572.8, 456.0-456.21, V42.7
Myocardial infarction ICD-9-CM diagnosis 410.xx, 411.0, 412.xx, 429.7x
Osteoarthritis ICD-9-CM diagnosis 715.xx
Osteoporosis ICD-9-CM diagnosis 733.xx
Renal disease ICD-9-CM diagnosis 285.21, 403.xx-404.xx, 405.01, 405.11, 405.91, 458.21, 582.xx, 583.xx, 585, 586, 588.xx, 593.71-593.73, V42.0