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HomeICD-10 CodesI40
ICD-10-CM
Billable

I40

Classification
Category:
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Coding Guidance
Coding Guidance I40 should not be used for reimbursement purposes as there are more specific codes below it that contain a greater level of detail. See Related Codes to drill down to more specific billable codes for appropriate reimbursement.
Includes
From
  • subacute myocarditis
Excludes 1
From
  • acute rheumatic myocarditis ( I01.2 )
Excludes 2
From
  • 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 .-)

More Specific Codes

I40.0
Infective myocarditis I40.0
I40.1
Isolated myocarditis I40.1
I40.8
Other acute myocarditis I40.8
I40.9
Acute myocarditis, unspecified I40.9
I00-I99
I00-I99 - Diseases of the circulatory system

External Resources

2025 ICD-10 guidelines from CMS.gov