ICD-10 Code I50.810 – Right heart failure, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I50.810 – Right heart failure, unspecified
What it is
This code identifies right-sided heart failure when the provider documents the condition but does not specify a cause or whether it is acute or chronic. It indicates impaired right ventricular pumping with resulting systemic venous congestion.
Clinical signs
Common findings include peripheral edema, jugular venous distention, hepatomegaly, ascites, and fatigue. Clinical features vary; refer to documentation.
When to use this code
Use I50.810 when the record clearly states right heart failure, right-sided heart failure, or cor pulmonale-related right heart failure without further detail. Apply it when the note does not identify acute, chronic, or other specified heart failure type. Check documentation if the cause is linked to another condition.
Do not use for
Do not use this code for left-sided heart failure, biventricular failure, or heart failure with a more specific documented type. If the provider documents a different heart failure category, code that condition instead.
Coding tip
If the chart only says “heart failure,” query for laterality and acuity before assigning I50.810.