Ischemic Cardiomyopathy ICD-10 Code: I25.5
Last updated: January 4, 2026
Ischemic cardiomyopathy (ICM) is coded as I25.5.
Primary Code
| Code | Description | Use |
|---|---|---|
| I25.5 | Ischemic cardiomyopathy | ICM due to coronary disease |
Associated Condition Coding
Ischemic cardiomyopathy often requires additional codes:
| Associated Condition | Code |
|---|---|
| Heart failure with reduced EF (HFrEF) | I50.2x |
| Heart failure with preserved EF (HFpEF) | I50.3x |
| Coronary artery disease | I25.10 |
| Prior MI | I25.2 |
| Angina | I25.11x |
Differentiation from Other Cardiomyopathies
| Type | Code | Etiology |
|---|---|---|
| Ischemic | I25.5 | Coronary artery disease |
| Dilated | I42.0 | Idiopathic |
| Hypertrophic | I42.1-I42.2 | Genetic |
| Alcoholic | I42.6 | Alcohol |
| Drug-induced | I42.7 | Medications |
Coding Tips
- Heart failure: Almost always add I50.x (HFrEF, HFpEF, or combined)
- CAD: Consider adding I25.10 if active coronary disease
- Prior MI: Add I25.2 if old MI documented
- EF%: Guides heart failure code selection (HFrEF vs HFpEF)
Sequencing
For most encounters:
- I25.5 - Ischemic cardiomyopathy (underlying disease)
- I50.2x - Heart failure with reduced EF (manifestation)
- I25.10 - CAD if also documented
Heart Failure Code Selection
| EF | Classification | Code |
|---|---|---|
| <40% | HFrEF | I50.2x |
| 40-49% | HFmrEF | I50.2x |
| >=50% | HFpEF | I50.3x |
Frequently Asked Questions
What is the ICD-10 code for ischemic cardiomyopathy?
I25.5 is the ICD-10 code for ischemic cardiomyopathy. This represents heart muscle dysfunction caused by coronary artery disease.
Should I code heart failure with ischemic cardiomyopathy?
Yes. Code both I25.5 (ischemic cardiomyopathy) and the appropriate heart failure code (I50.2x for HFrEF, I50.3x for HFpEF).
What's the difference between I25.5 and I42.0?
I25.5 is ischemic cardiomyopathy (due to coronary disease). I42.0 is dilated cardiomyopathy (idiopathic). The etiology determines the code.
Related Resources
Last updated: January 2026. Code data reflects ICD-10-CM 2026 version. This guide is for educational purposes only. Always verify codes against current official guidelines.