ICD-10-CM › I00-I99 › I30-I5A › I codes › I42

I42

Cardiomyopathy

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 10 more specific codes instead:

  • I42.0 Dilated cardiomyopathy (also a header)
  • I42.1 Obstructive hypertrophic cardiomyopathy
  • I42.2 Other hypertrophic cardiomyopathy
  • I42.3 Endomyocardial (eosinophilic) disease
  • I42.4 Endocardial fibroelastosis
  • I42.5 Other restrictive cardiomyopathy
  • I42.6 Alcoholic cardiomyopathy
  • I42.7 Cardiomyopathy due to drug and external agent
  • I42.8 Other cardiomyopathies (also a header)
  • I42.9 Cardiomyopathy, unspecified

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2012 Added to the draft code set draft Cardiomyopathy

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

This code

Excludes2 - not included here

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

Code first

  • pre-existing cardiomyopathy complicating pregnancy and puerperium (O99.4)

Includes

  • myocardiopathy