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I09.0

Billable

Rheumatic myocarditis

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

What This Code Means

Rheumatic myocarditis is inflammation of the heart muscle caused by acute rheumatic fever, a serious complication of untreated strep throat. This condition can weaken the heart's ability to pump blood effectively.

Coding Tips

  • •This code is used for myocarditis specifically related to rheumatic fever; do not use for myocarditis from other causes such as viral or bacterial infections
  • •Verify documentation clearly states rheumatic origin and consider if acute rheumatic fever (I01.-) should also be coded as the underlying condition

Excludes 1 — Do NOT code together

  • myocarditis not specified as rheumatic (I51.4)

Code Hierarchy

└I09Other rheumatic heart diseases└I09.0Rheumatic myocarditis
└I09.0Rheumatic myocarditis

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