ICD-10-CM category
I42: Cardiomyopathy
Codes under I42 (Cardiomyopathy). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| I42.0 | Dilated cardiomyopathy | ✓ |
| I42.1 | Obstructive hypertrophic cardiomyopathy | ✓ |
| I42.2 | Other hypertrophic cardiomyopathy | ✓ |
| I42.3 | Endomyocardial (eosinophilic) disease | ✓ |
| I42.4 | Endocardial fibroelastosis | ✓ |
| I42.5 | Other restrictive cardiomyopathy | ✓ |
| I42.6 | Alcoholic cardiomyopathy | ✓ |
| I42.7 | Cardiomyopathy due to drug and external agent | ✓ |
| I42.8 | Other cardiomyopathies | ✓ |
| I42.9 | Cardiomyopathy, unspecified | ✓ |
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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