ICD-10 Code I50.8 – Other heart failure (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I50.8 – Other heart failure
What it is
I50.8 is used for heart failure that does not fit the more specific ICD-10 categories. It indicates impaired cardiac pumping or filling, but the documentation does not identify a better-defined type.
Clinical signs
Clinical features vary; refer to documentation. Common findings in heart failure include dyspnea, fatigue, edema, and signs of fluid overload, but you should code only what the provider documents.
When to use this code
Use I50.8 when the record states “other heart failure” or describes heart failure without enough detail for a more specific code. It may apply when the provider documents a nonstandard subtype or mixed features that do not map cleanly to another I50 code. Check documentation if the note is vague or incomplete.
Do not use for
Do not use this code when the documentation clearly identifies systolic, diastolic, combined, or unspecified heart failure. If the provider names a specific heart failure type, code that diagnosis instead.
Coding tip
Query the provider when the chart says only “heart failure” and the type is unclear.