ICD-10-CM › I00-I99 › I30-I5A › I42 Cardiomyopathy › I42.4
Endocardial fibroelastosis
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
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 Endocardial fibroelastosis
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
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.
- Cleft
- Extra
- Fused
- Patent
- Trifid
- Triple
- Window
- Aplasia
- Aberrant
- Neonatal
- Patulous
- Abnormity
- Asymmetry
- Dysplasia
- Additional
- Lobulation
- Nonclosure
- Nondescent
- Fold, folds
- Myocardosis
- Rudimentary
- Undescended
- Malformation
- Triplication
- Transposition
- Birth > defect
- Maldevelopment
- Myocardiopathy
- Septum, septate
- Union, abnormal
- Imperfect > fusion
- Vestige, vestigial
- Duplication, duplex
- Lesion > congenital
- Pervious, congenital
- Elongated, elongation
- Open, opening > false
- Termination > anomalous
- Heterotopia, heterotopic
- Implantation > anomalous
Showing 40 of 107 index phrases.
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 |
| I42.5 | Other restrictive cardiomyopathy | Valid |
| I42.6 | Alcoholic cardiomyopathy | Valid |
| I42.7 | Cardiomyopathy due to drug and external agent | Valid |
| I42.8 | Other cardiomyopathies | Not billable |
| I42.9 | Cardiomyopathy, unspecified | Valid |