ICD-10-CM category
I50 Heart failure
I50 is a category, not a billable code. Report one of the 23 complete codes below.
Codes in I50
- I50.1Left ventricular failure, unspecified
- I50.20Unspecified systolic (congestive) heart failure
- I50.21Acute systolic (congestive) heart failure
- I50.22Chronic systolic (congestive) heart failure
- I50.23Acute on chronic systolic (congestive) heart failure
- I50.30Unspecified diastolic (congestive) heart failure
- I50.31Acute diastolic (congestive) heart failure
- I50.32Chronic diastolic (congestive) heart failure
- I50.33Acute on chronic diastolic (congestive) heart failure
- I50.40Unspecified combined systolic (congestive) and diastolic (congestive) heart failure
- I50.41Acute combined systolic (congestive) and diastolic (congestive) heart failure
- I50.42Chronic combined systolic (congestive) and diastolic (congestive) heart failure
- I50.43Acute on chronic combined systolic (congestive) and diastolic (congestive) heart failure
- I50.810Right heart failure, unspecified
- I50.811Acute right heart failure
- I50.812Chronic right heart failure
- I50.813Acute on chronic right heart failure
- I50.814Right heart failure due to left heart failure
- I50.82Biventricular heart failure
- I50.83High output heart failure
- I50.84End stage heart failure
- I50.89Other heart failure
- I50.9Heart failure, unspecified
Outside the US? I50 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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