Isolated myocarditis

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

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 Isolated myocarditis

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 I40 Acute myocarditis

Excludes1 - never coded here

acute rheumatic myocarditis (I01.2)

Includes

subacute myocarditis

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Cardiosis
Bad > heart
Cardiopathy
Ailment heart
Cardiostenosis
Change > heart
Lesion > heart
Strain > heart
Fibroid > heart
Morbus > cordis
Organic > heart
Seizure > heart
Trouble > heart
Cachexia > heart
Collapse > heart
Lesion > cardiac
Stricture > heart
Cachexia > cardiac
Compression > heart
Myofibrosis > heart
Stricture > cardiac
Toxemia > myocardial
Collapse > myocardial
Low > cardiac reserve
Compensation > failure
Complication > cardiac
Decompensation > heart
Decompensation > cardiac
Fibrosis, fibrotic > heart
Decompensation > myocardial
Disease, diseased > cardiac
Fibrosis, fibrotic > cardiac
Impaired, impairment > heart
Failure, failed > compensation
Scarlatina > myocarditis > old
Myocarditis > toxic > rheumatic
Disability, disabilities > heart
Failure, failed > heart > organic
Disease, diseased > heart > senile
Disease, diseased > heart > fibroid

Showing 40 of 56 index phrases.

Codes in the same group

Code	Description	Status
I40.0	Infective myocarditis	Valid
I40.8	Other acute myocarditis	Valid
I40.9	Acute myocarditis, unspecified	Valid