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B33.21

Billable

Viral endocarditis

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

What This Code Means

This is an infection of the heart's inner lining (endocardium) caused by a virus. It can lead to inflammation and damage to the heart valves if not treated.

Coding Tips

  • •Verify the viral agent if documented (e.g., enterovirus, coxsackievirus) as some may have more specific codes available
  • •Ensure endocarditis is confirmed by clinical findings or diagnostic testing; do not code suspected or rule-out cases with this code

Code Hierarchy

└B33Other viral diseases, not elsewhere classified└B33.2Viral carditis└B33.21Viral endocarditis
└B33.21Viral endocarditis

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