MCMedicalCodingSoftware
I25.720

I25.720: Atherosclerosis of autologous artery coronary artery bypass graft(s) with unstable angina pectoris

Billable / specific codeICD-10-CM

I25.720 is a billable, specific ICD-10-CM code for atherosclerosis of autologous artery coronary artery bypass graft(s) with unstable angina pectoris. It is valid for submission on a claim.

Check I25.720 with the rest of the claim: free scrubber

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • unstable angina without atherosclerosis of autologous artery coronary artery bypass graft(s) (I20.0)

Excludes1 inherited from the categories above I25.720

A category’s note binds every code beneath it.

Written on I25.7: Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris

  • atherosclerosis of bypass graft(s) of transplanted heart without angina pectoris (I25.812)
  • atherosclerosis of coronary artery bypass graft(s) without angina pectoris (I25.810)
  • atherosclerosis of native coronary artery of transplanted heart without angina pectoris (I25.811)

Excludes2 inherited from the categories above I25.720

Not part of this code, but both may be coded when both are present.

Written on I25: Chronic ischemic heart disease

  • non-ischemic myocardial injury (I5A)

Risk adjustment

I25.720 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

I25.720 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
  • A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
  • A56425Billing and Coding: B-type Natriuretic Peptide (BNP) Testing
  • A56451Billing and Coding: Cardiac Computed Tomography (CCT) and Coronary Computed Tomography Angiography (CCTA)

Alphabetic index entries that lead here

  • Arteriosclerosis, arteriosclerotic›coronary›bypass graft›autologous artery›with›angina pectoris›unstable

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under I25.72

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.