Heart failure, unspecified

This diagnosis code signifies a general form of heart failure where the specific type (e.g., systolic, diastolic, acute, chronic, left, right) is not documented or cannot be determined. It indicates the heart's inability to pump sufficient blood to meet the body's metabolic demands.

This code is appropriate when the medical record clearly states "heart failure" but lacks further specificity regarding its nature or etiology. It should be used when documentation does not allow for a more precise classification of heart failure.

• Avoid using this code if more specific documentation (e.g., systolic, diastolic, acute, chronic, left, right) is available.
• Query the provider for clarification if the documentation is ambiguous but suggests a more specific type of heart failure.
• Always sequence this code as a secondary diagnosis if a definitive underlying cause (e.g., hypertension, coronary artery disease) is also documented.