Which ICD-10-CM code is used for chronic heart failure?

Chronic heart failure is classified in ICD-10-CM under the code range I50, with different codes detailing various types and stages of heart failure. The code I50.9 specifically represents "Heart failure, unspecified," which is used when the specific type of chronic heart failure is not clearly defined or documented.

I50.0 refers to congestive heart failure, I50.1 indicates acute heart failure, and I50.2 designates chronic heart failure due to conditions like hypertensive heart disease. Each of these codes provides a more specific classification of heart failure, while I50.9 serves as a broader category for chronic heart failure when further details are lacking. This distinction is important for accurate medical coding and billing practices, ensuring that healthcare providers are reimbursed correctly and that patient records accurately reflect their conditions.