Other cardiomyopathies

Not billableICD-10-CM diagnosis code.

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

Billable FY2016 to FY2026, and a category header from FY2027.

Submit one of these 2 more specific codes instead:

I42.81 Arrhythmogenic cardiomyopathy
I42.89 Other cardiomyopathies not elsewhere classified

What has happened to this code

Every change the publisher made, from 2007 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.

FY2007 Added to the draft code set draft Other cardiomyopathies
FY2027 Stopped being billable

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.

Inherited from I42 Cardiomyopathy

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

Codes in the same group

Code	Description	Status
I42.0	Dilated cardiomyopathy	Not billable
I42.1	Obstructive hypertrophic cardiomyopathy	Valid
I42.2	Other hypertrophic cardiomyopathy	Valid
I42.3	Endomyocardial (eosinophilic) disease	Valid
I42.4	Endocardial fibroelastosis	Valid
I42.5	Other restrictive cardiomyopathy	Valid
I42.6	Alcoholic cardiomyopathy	Valid
I42.7	Cardiomyopathy due to drug and external agent	Valid
I42.9	Cardiomyopathy, unspecified	Valid