ICD-10 Code
International Classification of Diseases, 10th Revision
Feb 23, 2019
  ICD-10 Code for Myocarditis, unspecified I51.4

I51.4 is a valid1 ICD 10 diagnosis code.

I51.4 is valid for submission for HIPAA-covered transactions.

Chapter 9 Diseases of the circulatory system (I00-I99)
Section I30-I52 Other forms of heart disease (I30-I52)
Category I51 Complications and ill-defined descriptions of heart disease

• See below for any additional coding requirements that may be necessary.

• Check for any notations, inclusions and/or exclusions that are specific to this ICD 10 code before using

1 No additional coding requirements necessary.
Inclusion Term
  • Chronic (interstitial) myocarditis
  • Myocardial fibrosis
  • Myocarditis NOS
  • acute or subacute myocarditis (I40.-)
See also ICD 10 code for

Related Terms to “Myocarditis, unspecified”

  • Acardiotrophia - I51.4
  • Arteriosclerosis, arteriosclerotic(diffuse) (obliterans) (of) (senile) (with calcification) - I70.90
    • myocarditis - I51.4
  • Myocarditis(with arteriosclerosis)(chronic)(fibroid) (interstitial) (old) (progressive) (senile) - I51.4
See the ICD-10-CM Coding Guidelines.

Questions related to I51.4 Myocarditis, unspecified

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.