I51.4
Myocarditis, unspecified
- Release
- FY 2027
- Effective
Hierarchy
Where I51.4 sits in the official hierarchy. Each level is the code it is classified under.
- I51 Parent Complications and ill-defined descriptions of heart disease
- I51.4 This code Myocarditis, unspecified
Official Coding Notes
Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.
Inclusion Terms
Chronic (interstitial) myocarditis
Inclusion Terms
Myocardial fibrosis
Inclusion Terms
Myocarditis NOS
Excludes1
acute or subacute myocarditis ( I40 .-)
Excludes2
heart disease specified as rheumatic (I00-I09)
Inherited from I51 — Complications and ill-defined descriptions of heart disease
Version History
How I51.4 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentMyocarditis, unspecified
-
FY 2026 Effective
UnchangedMyocarditis, unspecified
Related Codes
Other codes under I51
- I51.0 Cardiac septal defect, acquired Billable
- I51.1 Rupture of chordae tendineae, not elsewhere classified Billable
- I51.2 Rupture of papillary muscle, not elsewhere classified Billable
- I51.3 Intracardiac thrombosis, not elsewhere classified Billable
- I51.5 Myocardial degeneration Billable
- I51.7 Cardiomegaly Billable
- I51.8 Other ill-defined heart diseases
- I51.9 Heart disease, unspecified Billable
Codes whose official notes reference I51.4
Data Source
Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.
- Release
- FY 2027
- Effective
- Source file
- icd10cm-code-descriptions-2027.zip
Official ICD-10-CM source files (opens in a new tab)
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