ICD-10-CM 2027
ICD-10 code for Acardiotrophia
From the official ICD-10-CM alphabetic index entry “Acardiotrophia”. Page updated September 29, 2026.
About coding Acardiotrophia
The ICD-10-CM code for Acardiotrophia is I51.4 (Myocarditis, unspecified).
Within I51, choose I51.4 (Myocarditis, unspecified) only when documentation doesn't support a more specific option: cardiac septal defect, acquired (I51.0), rupture of chordae tendineae, not elsewhere classified (I51.1), rupture of papillary muscle, not elsewhere classified (I51.2), intracardiac thrombosis, not elsewhere classified (I51.3), myocardial degeneration (I51.5), Cardiomegaly (I51.7), other ill-defined heart diseases (I51.8) and heart disease, unspecified (I51.9).
Don't report I51.4 together with the conditions in its Excludes1 note: acute or subacute myocarditis (I40.-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for I51.4)
- acute or subacute myocarditis (I40.-)
Common questions about Acardiotrophia ICD-10 codes
What is the ICD-10 code for Acardiotrophia?
- I51.4 — Myocarditis, unspecified.
Is I51.4 billable?
- Yes. I51.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I51.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I51.4 as a principal diagnosis.
Is I51.4 a CC or MCC?
- No. I51.4 is neither a CC nor an MCC under MS-DRG v44.0.