Diseases of the Circulatory System

ICD-10 Code: I25.5

Ischemic Cardiomyopathy

Cardiomyopathy caused by coronary artery disease, typically with reduced ejection fraction.

Clinical Information

Ischemic cardiomyopathy: LV dysfunction due to CAD. Most common cause of systolic HF in US. Diagnosed by CAD on cath + reduced EF on echo. Distinct from non-ischemic cardiomyopathy (I42.x).

Coding Guidelines

  • 1Use when cardiomyopathy explicitly attributed to CAD/ischemia
  • 2Implies both CAD and LV dysfunction
  • 3Often coexists with HF codes

Common Uses

  • Cardiology management of CAD with reduced EF
  • Heart failure due to ischemic disease

Related ICD-10 Codes

I25.10Atherosclerotic heart disease
I50.22Chronic systolic heart failure

Documentation Requirements

  • Document 'ischemic cardiomyopathy' or 'CAD with cardiomyopathy'
  • EF percentage
  • CAD history

Real-World Coding Examples

62-year-old with ischemic cardiomyopathy (EF 30%), post-MI x 2. On GDMT. Diagnosis: Ischemic cardiomyopathy (I25.5), Chronic systolic heart failure (I50.22)

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Medical coding for Diseases of the Circulatory System