ICD-10-CM · Chapter 9 · I00-I99
I42 Cardiomyopathy
Includes
- myocardiopathy
Excludes 2 (not included here)
- ischemic cardiomyopathy (I25.5)
- peripartum cardiomyopathy (O90.3)
- ventricular hypertrophy (I51.7)
Code First
- pre-existing cardiomyopathy complicating pregnancy and puerperium (O99.4)
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
|---|---|---|
| I42..0 | Dilated cardiomyopathy | No |
| I42..00 | Dilated cardiomyopathy, unspecified | Yes |
| I42..01 | Familial-genetic dilated cardiomyopathy | Yes |
| I42..09 | Other dilated cardiomyopathy | Yes |
| I42..1 | Obstructive hypertrophic cardiomyopathy | Yes |
| I42..2 | Other hypertrophic cardiomyopathy | Yes |
| I42..3 | Endomyocardial (eosinophilic) disease | Yes |
| I42..4 | Endocardial fibroelastosis | Yes |
| I42..5 | Other restrictive cardiomyopathy | Yes |
| I42..6 | Alcoholic cardiomyopathy | Yes |
| I42..7 | Cardiomyopathy due to drug and external agent | Yes |
| I42..8 | Other cardiomyopathies | No |
| I42..81 | Arrhythmogenic cardiomyopathy | Yes |
| I42..89 | Other cardiomyopathies not elsewhere classified | Yes |
| I42..9 | Cardiomyopathy, unspecified | Yes |
Plain-language term for this code
The following entry in the US Medical Glossary corresponds to ICD-10-CM category I42:
- Cardiomyopathy — Cardiomiopatía
Last reviewed: September 2026