I42

I42: Cardiomyopathy

Non-billable headerICD-10-CM

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

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

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

Code first

The underlying condition must be sequenced before this code.

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

Includes

Conditions this code covers.

myocardiopathy

Other codes that can never be billed with I42

Their own Excludes1 notes name this code, so the conflict is not listed above.

I38Endocarditis, valve unspecified
Q24Other congenital malformations of heart

Risk adjustment

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

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead I42

10 child codes. Green means billable.