MCMedicalCodingSoftware
I42.0

I42.0: Dilated cardiomyopathy

Non-billable headerICD-10-CM

I42.0 is a non-billable header ICD-10-CM code for dilated cardiomyopathy. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 inherited from the categories above I42.0

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

Written on I42: Cardiomyopathy

  • ischemic cardiomyopathy (I25.5)
  • peripartum cardiomyopathy (O90.3)
  • ventricular hypertrophy (I51.7)

Risk adjustment

I42.0 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 227 Cardiomyopathy/Myocarditis0.189 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

I42.0 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A59960Billing and Coding: B-type Natriuretic Peptide (BNP) Testing
  • A60292Billing and Coding: Temporary Nontherapeutic Ambulatory Cardiac Monitoring Devices

Code history

  • deletedFY2024-FY2027

    Dilated cardiomyopathy

Code to one of these instead I42.0

3 child codes. Green means billable.

Other codes under I42

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.