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I25.6

I25.6: Silent myocardial ischemia

Billable / specific codeICD-10-CM

I25.6 is a billable, specific ICD-10-CM code for silent myocardial ischemia. It is valid for submission on a claim.

Check I25.6 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above I25.6

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

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

Medicare coverage

I25.6 is named in 31 Medicare coverage policies: 31 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
  • A56451Billing and Coding: Cardiac Computed Tomography (CCT) and Coronary Computed Tomography Angiography (CCTA)
  • A56476Billing and Coding: Cardiac Radionuclide Imaging

Alphabetic index entries that lead here

  • Ischemia, ischemic›myocardium, myocardial›silent(asymptomatic)
  • Disease, diseased›heart›ischemic›diagnosed on ECG or other special investigation, but currently presenting no symptoms
  • Disease, diseased›heart›ischemic›silent

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under I25

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.