ICD-10-CM code · FY2027
I41 Myocarditis in diseases classified elsewhere
BillableValid for claims as a specific diagnosis code
About I41
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Coding notes for I41
Excludes1 Not coded here: never report these together with this code (use the code given instead).
- 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 Report the underlying condition's code before this one.
Chapter 9 notes (apply to every code in it)
Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Other categories in I30-I5A
- I30 Acute pericarditisHeader
- I31 Other diseases of pericardiumHeader
- I32 Pericarditis in diseases classified elsewhereBillable
- I33 Acute and subacute endocarditisHeader
- I34 Nonrheumatic mitral valve disordersHeader
- I35 Nonrheumatic aortic valve disordersHeader
- I36 Nonrheumatic tricuspid valve disordersHeader
- I37 Nonrheumatic pulmonary valve disordersHeader
- I38 Endocarditis, valve unspecifiedBillable
- I39 Endocarditis and heart valve disorders in diseases classified elsewhereBillable
- I40 Acute myocarditisHeader
- I42 CardiomyopathyHeader
- I43 Cardiomyopathy in diseases classified elsewhereBillable
- I44 Atrioventricular and left bundle-branch blockHeader
- I45 Other conduction disordersHeader
- I46 Cardiac arrestHeader
- I47 Paroxysmal tachycardiaHeader
- I48 Atrial fibrillation and flutterHeader
- I49 Other cardiac arrhythmiasHeader
- I50 Heart failureHeader
- I51 Complications and ill-defined descriptions of heart diseaseHeader
- I52 Other heart disorders in diseases classified elsewhereBillable
- I5A Non-ischemic myocardial injury (non-traumatic)Billable
Latest research on myocarditis
- Slight increase of incidence of myocarditis post-mRNA SARS-CoV-2 vaccination
- Risk of myocarditis or pericarditis after COVID-19 mRNA vaccination is highest among younger males
- Risk of myocarditis after receiving mRNA-based COVID-19 vaccines
- Reports of myocarditis in healthy adolescents after Pfizer-BioNTech COVID-19 Vaccination
- Nucleoside-modified mRNA influenza vaccine more effective than standard shot in adults
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See 2MM+ plansICD-10-CM FY2027 code set, as published by the CDC National Center for Health Statistics (NCHS) and CMS, effective October 1, 2026 to September 30, 2027. Codes, titles and notes are shown as published. Check payer rules and the official guidelines before billing. This page is not medical advice.
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