I41
✓ Billable
Myocarditis in diseases classified elsewhere
ICD-10-CM · FY2026 · Diseases of the Circulatory System
Code
I41
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Circulatory System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Excludes1 — never code together
- myocarditis (in):
- Chagas' disease (chronic) (B57.2)
- acute (B57.0)
- coxsackie (virus) infection (B33.22)
- diphtheritic (A36.81)
- gonococcal (A54.83)
- influenzal (J09.X9, J10.82, J11.82)
- meningococcal (A39.52)
- mumps (B26.82)
- rheumatoid arthritis (M05.31)
- sarcoid (D86.85)
- syphilis (A52.06)
- toxoplasmosis (B58.81)
- tuberculous (A18.84)
Code first
- underlying disease, such as:
- typhus (A75.0-A75.9)
Frequently asked questions
What is ICD-10 code I41?
ICD-10-CM code I41 represents Myocarditis in diseases classified elsewhere. It is a billable diagnosis code in the Diseases of the Circulatory System chapter, effective October 1, 2025 – September 30, 2026.
Is I41 billable?
Yes. I41 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is I41 in?
I41 belongs to the Diseases of the Circulatory System chapter (I00–I99) of ICD-10-CM.
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