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I20.89

I20.89: Other forms of angina pectoris

Billable / specific codeICD-10-CM

I20.89 is a billable, specific ICD-10-CM code for other forms of angina pectoris. It is valid for submission on a claim.

Check I20.89 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Angina equivalent
  • Angina of effort
  • Coronary slow flow syndrome
  • Stable angina
  • Stenocardia

Excludes1 inherited from the categories above I20.89

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 I20.89

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

I20.89 is named in 35 Medicare coverage policies: 35 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
  • A53775Billing and Coding: Frequency and Duration for Cardiac Rehabilitation and Intensive Cardiac Rehabilitation
  • A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
  • A56451Billing and Coding: Cardiac Computed Tomography (CCT) and Coronary Computed Tomography Angiography (CCTA)

Alphabetic index entries that lead here

  • Likoff's syndrome
  • Schaufenster krankheit
  • Stenocardia
  • Angina›equivalent
  • Angina›specified NEC
  • Angina›stable
  • Slow›flow syndrome, coronary
  • Syncope›anginosa
  • Syndrome›Heberden's
  • Syndrome›Likoff's
  • Syndrome›slow flow, coronary
  • Syndrome›coronary›slow flow

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under I20.8

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.