Fiedler's myocarditis /Giant cell myocarditis /Idiopathic myocarditis

ICD-10-CM Code I40.1 
Isolated myocarditis

BILLABLE | ICD-10 from 2011 - 2016

I40.1 is a billable ICD code used to specify a diagnosis of isolated myocarditis. 

Coding Notes for I40.1 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:

Fiedler's myocarditis

Giant cell myocarditis

Idiopathic myocarditis

MS-DRG Mapping

• DRG Group #314-316 - Other circulatory system diagnoses with MCC.

• DRG Group #314-316 - Other circulatory system diagnoses with CC.

• DRG Group #314-316 - Other circulatory system diagnoses without CC or MCC.

• DRG Group #974-976 - Hiv with major related condition with MCC.

• DRG Group #974-976 - Hiv with major related condition with CC.

• DRG Group #974-976 - Hiv with major related condition without CC or MCC.

Abramov-Fiedler myocarditis(acute isolated myocarditis) (I40.1)

Syndrome (see: Disease) -

• Fiedler's

Fiedler's -

• myocarditis(acute)

Myocarditis(with arteriosclerosis)(chronic)(fibroid) (interstitial) (old) (progressive) (senile) -

• eosinophilic
• Fiedler's(acute) (isolated)
• giant cell(acute) (subacute)
• granulomatous(idiopathic) (isolated) (nonspecific)
• idiopathic(granulomatous)
• isolated(acute)
• acute or subacute(interstitial)