Coronary Artery Disease ICD-10 Codes (I25)

Coronary artery disease falls under the ICD-10-CM I25 category for chronic ischemic heart disease. Here are the common codes — confirm against the current release before use.

Common coronary artery disease ICD-10 codes

I25.10 is the workhorse code for uncomplicated CAD without angina.

Disease of bypass grafts

Atherosclerosis of coronary artery bypass grafts has its own subcategories (for example, I25.7xx for autologous vein or artery grafts with angina). Use the code that matches the graft type and whether angina is present.

Coding tips

• Distinguish CAD with angina (I25.11-) from without (I25.10).
• Add the angina detail (unstable vs stable) when documented.
• Old (healed) MI is I25.2; an acute MI uses the I21 category instead.

Frequently asked questions

What is the ICD-10 code for coronary artery disease?

The I25 category. The most common is I25.10 — atherosclerotic heart disease of native coronary artery without angina pectoris. Verify against the current ICD-10-CM release.

What is the ICD-10 code for CAD with angina?

I25.110 for native-vessel disease with unstable angina and I25.119 with unspecified angina.

What is the ICD-10 code for old myocardial infarction?

I25.2. An acute MI is coded in the I21 category instead.

Is coronary artery disease acute or chronic in ICD-10?

CAD sits under chronic ischemic heart disease (I25); an acute event such as a heart attack is coded separately under I21.