MCMedicalCodingSoftware
I20.2

I20.2: Refractory angina pectoris

Billable / specific codeICD-10-CM

I20.2 is a billable, specific ICD-10-CM code for refractory angina pectoris. It is valid for submission on a claim.

Check I20.2 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above I20.2

A category’s note binds every code beneath it.

Written on I20: Angina pectoris

  • angina pectoris with atherosclerotic heart disease of native coronary arteries (I25.1-)
  • atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris (I25.7-)
  • postinfarction angina (I23.7)

Other codes that can never be billed with I20.2

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

  • I24Other acute ischemic heart diseases

Risk adjustment

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

Medicare coverage

I20.2 is named in 5 Medicare coverage policies: 5 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A53775Billing and Coding: Frequency and Duration for Cardiac Rehabilitation and Intensive Cardiac Rehabilitation
  • A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
  • A56952Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
  • A57083Billing and Coding: B-type Natriuretic Peptide (BNP) Testing

Alphabetic index entries that lead here

  • Angina›refractory

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under I20

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.