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B33.22

Billable

Viral myocarditis

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

This is an inflammation of the heart muscle caused by a viral infection. The virus damages the heart muscle, which can affect how well the heart pumps blood throughout the body.

Coding Tips

  • •Ensure documentation clearly identifies the viral etiology; if the specific virus is documented (e.g., enterovirus, COVID-19), consider coding the specific viral infection code in addition to B33.22
  • •Verify whether the myocarditis is acute or chronic, as this may affect severity assessment and treatment planning; look for documentation of cardiac complications such as heart failure or arrhythmias that should be coded separately

Code Hierarchy

└B33Other viral diseases, not elsewhere classified└B33.2Viral carditis└B33.22Viral myocarditis
└B33.22Viral myocarditis

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