I50.9
BillableHeart failure, unspecified
HCC Category Mapping
V28HCC 226 — Heart Failure, Specified
0.000V24HCC 85 — Congestive Heart Failure
0.368ESRDHCC 85 — Congestive Heart Failure
0.000RxHCCHCC 186 — Heart Failure
0.000What This Code Means
Heart failure without a specified type or cause. This is used when the heart is unable to pump blood effectively but the specific classification (systolic, diastolic, or combined) is not documented.
Coding Tips
- •Query the provider for more specific heart failure type (systolic, diastolic, or combined) to assign a more specific code
- •Verify if acute or chronic heart failure is documented, as this affects code selection
Clinical Significance
Heart failure, unspecified, is the least specific heart failure code and should be used only as a last resort when documentation provides no detail about the type, acuity, or affected ventricle. While it still maps to an HCC in V24, it represents a missed opportunity for more accurate risk stratification and clinical documentation.
Documentation Requirements
- ✓Provider must document heart failure as an active diagnosis
- ✓This code should only be used when documentation does not specify systolic, diastolic, combined, right-sided, or end stage heart failure
- ✓Query the provider for additional specificity before defaulting to this code
- ✓Current medications suggesting heart failure management
- ✓Signs and symptoms of heart failure present during the encounter
- ✓Consider requesting echocardiogram results to determine ejection fraction and type
Excludes 2 — Not included here, may code separately
- fluid overload unrelated to congestive heart failure (E87.70)
Commonly Confused Codes
I50.1 — Left ventricular failure, unspecified: slightly more specific, identifying left ventricleI50.20 — Unspecified systolic heart failure: use when systolic dysfunction is documentedI50.30 — Unspecified diastolic heart failure: use when diastolic dysfunction is documentedI50.810 — Right heart failure, unspecified: use when right heart failure is specifiedI50.89 — Other heart failure: use for heart failure types not classified elsewhere