I50.32

HCC Category Mapping

What This Code Means

A long-term condition where the heart muscle remains stiff and cannot relax properly between beats, gradually reducing the heart's ability to fill with blood.

Coding Tips

• •Confirm documentation indicates 'chronic' or 'long-standing' diastolic dysfunction
• •Verify absence of acute exacerbation; if acute worsening is documented, use I50.33

Clinical Significance

Chronic diastolic congestive heart failure reflects persistent impairment of ventricular relaxation and filling despite preserved systolic function. This condition is common in elderly patients with hypertension, diabetes, and obesity, and requires ongoing management to prevent acute decompensation. Annual recapture is important for reflecting ongoing disease complexity.

Documentation Requirements

• ✓Provider must document 'chronic' diastolic heart failure or chronic heart failure with preserved ejection fraction
• ✓Ejection fraction demonstrating preserved systolic function
• ✓Echocardiographic evidence of diastolic dysfunction
• ✓Current treatment plan including diuretics and management of contributing conditions
• ✓Functional status and symptom assessment
• ✓Absence of acute exacerbation — if worsening, code I50.33 instead

Commonly Confused Codes