I25

I25: Chronic ischemic heart disease

Non-billable headerICD-10-CM

I25 is a non-billable header ICD-10-CM code for chronic ischemic heart disease. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

non-ischemic myocardial injury (I5A)

Use additional code

Add a secondary code to capture the detail described below.

code to identify:
chronic total occlusion of coronary artery (I25.82)
exposure to environmental tobacco smoke (Z77.22)
history of tobacco dependence (Z87.891)
occupational exposure to environmental tobacco smoke (Z57.31)
tobacco dependence (F17.-)
tobacco use (Z72.0)

Other codes that can never be billed with I25

Their own Excludes1 notes name this code, so the conflict is not listed above.

I20Angina pectoris
I24.0Acute coronary thrombosis not resulting in myocardial infarction
I24.9Acute ischemic heart disease, unspecified
I25.7Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris
I25.75Atherosclerosis of native coronary artery of transplanted heart with angina pectoris
I25.76Atherosclerosis of bypass graft of coronary artery of transplanted heart with angina pectoris
I25.810Atherosclerosis of coronary artery bypass graft(s) without angina pectoris
I25.811Atherosclerosis of native coronary artery of transplanted heart without angina pectoris

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead I25

9 child codes. Green means billable.