I25.110: Atherosclerotic heart disease of native coronary artery with unstable angina pectoris
I25.110 is a billable, specific ICD-10-CM code for atherosclerotic heart disease of native coronary artery with unstable angina pectoris. It is valid for submission on a claim.
Check I25.110 with the rest of the claim: free scrubberExcludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- unstable angina without atherosclerotic heart disease (I20.0)
Risk adjustment
I25.110 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 229 Unstable Angina and Other Acute Ischemic Heart Disease0.240 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
I25.110 is named in 43 Medicare coverage policies: 43 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
- A52992Billing and Coding: Non-Invasive Cerebrovascular Arterial Studies
- A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
- A56425Billing and Coding: B-type Natriuretic Peptide (BNP) Testing
Alphabetic index entries that lead here
- Arteriosclerosis, arteriosclerotic›coronary›native vessel›with›angina pectoris›unstable
Code history
Unchanged in every release from FY2024 to FY2027.
Other codes under I25.11
- I25.111Atherosclerotic heart disease of native coronary artery with angina pectoris with documented spasm
- I25.112Atherosclerotic heart disease of native coronary artery with refractory angina pectoris
- I25.118Atherosclerotic heart disease of native coronary artery with other forms of angina pectoris
- I25.119Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris