I50: Heart failure

Codes under I50 (Heart failure). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
I50.1	Left ventricular failure, unspecified	✓
I50.2	Systolic (congestive) heart failure	—
I50.3	Diastolic (congestive) heart failure	—
I50.4	Combined systolic (congestive) and diastolic (congestive) heart failure	—
I50.8	Other heart failure	—
I50.9	Heart failure, unspecified	✓
I50.20	Unspecified systolic (congestive) heart failure	✓
I50.21	Acute systolic (congestive) heart failure	✓
I50.22	Chronic systolic (congestive) heart failure	✓
I50.23	Acute on chronic systolic (congestive) heart failure	✓
I50.30	Unspecified diastolic (congestive) heart failure	✓
I50.31	Acute diastolic (congestive) heart failure	✓
I50.32	Chronic diastolic (congestive) heart failure	✓
I50.33	Acute on chronic diastolic (congestive) heart failure	✓
I50.40	Unspecified combined systolic (congestive) and diastolic (congestive) heart failure	✓
I50.41	Acute combined systolic (congestive) and diastolic (congestive) heart failure	✓
I50.42	Chronic combined systolic (congestive) and diastolic (congestive) heart failure	✓
I50.43	Acute on chronic combined systolic (congestive) and diastolic (congestive) heart failure	✓
I50.81	Right heart failure	—
I50.82	Biventricular heart failure	✓
I50.83	High output heart failure	✓
I50.84	End stage heart failure	✓
I50.89	Other heart failure	✓
I50.810	Right heart failure, unspecified	✓
I50.811	Acute right heart failure	✓
I50.812	Chronic right heart failure	✓
I50.813	Acute on chronic right heart failure	✓
I50.814	Right heart failure due to left heart failure	✓

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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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