The primary ICD-10-CM code for coronary artery disease is I25.10 (Atherosclerotic heart disease of native coronary artery without angina pectoris), a billable code reported when atherosclerosis affects a native coronary artery without accompanying angina.
Primary codes
Billable
Billable
Extension
—
7th character
—
POA exempt
No
Inclusion terms
- Atherosclerotic heart disease NOS
Coding risks
- Coding a suspected or rule-out condition as confirmed
Hierarchy
Code comparison
Compare key differences between related codes to select the most specific option.
| Code | Description | Scenario |
|---|---|---|
| I25.10 | Atherosclerotic heart disease of native coronary artery without angina pectoris | CAD of a native coronary artery documented without any angina pectoris noted. |
| I25.119 | Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris | CAD with angina documented, but the type of angina is not specified in the chart. |
| I25.110 | Atherosclerotic heart disease of native coronary artery with unstable angina pectoris | CAD in native coronary artery with unstable angina explicitly documented by the provider. |
| I25.118 | Atherosclerotic heart disease of native coronary artery with other forms of angina pectoris | CAD with a specified angina type documented, not unstable and not spasm-related. |
| I25.111 | Atherosclerotic heart disease of native coronary artery with angina pectoris with documented spasm | CAD with angina and documented coronary artery spasm confirmed in the record. |
Select the most specific code supported by the encounter documentation. More specific codes improve reimbursement accuracy and reduce audit risk.
Code ranges
Chronic ischemic heart disease
Codes covering long-standing ischemic conditions of the heart including atherosclerosis of native and grafted vessels, aneurysm, and chronic total occlusion.
Ischemic heart diseases
Range encompassing angina, acute myocardial infarction, complications following MI, and chronic ischemic heart disease due to reduced coronary blood flow.
Angina pectoris
Codes for unstable, stable, spasm-induced, and other forms of angina pectoris representing symptomatic ischemic chest pain syndromes.
Acute myocardial infarction
Codes for ST elevation and non-ST elevation myocardial infarctions by anatomic site, covering the initial four-week period after onset.
Atherosclerosis
Codes for atherosclerosis of the aorta, renal, extremity, and other arteries, excluding coronary vessels which are classified under I25.
Coding risks
Avoid these common coding issues when reporting Coronary Artery Disease.
Impact
Assigning I25.10 without explicit angina status may miscode as I25.110 or I25.119 when angina is actually present.
Mitigation
Consider querying the provider when angina status is absent rather than inferring from chest pain mentions or nitroglycerin use.
Related codes
Ancillary and co-coding
Codes commonly reported with the primary diagnosis on the same claim.
Z-code variants
Family history, personal history, or screening encounter codes related to this condition.
Differential codes
Alternative or commonly confused codes to consider when documentation suggests a different condition than the primary diagnosis.
Frequently asked questions
No. I25.10 is specifically 'without angina.' When angina is documented, a combination code from I25.11- must be used instead.
References
Compiled from the following authoritative coding references. Last updated 2026-08-04.