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I40.9

Billable

Acute myocarditis, unspecified

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

What This Code Means

Sudden inflammation of the heart muscle where the specific cause is unknown or not documented.

Coding Tips

  • •Use this code only when the cause of acute myocarditis cannot be determined
  • •Query the provider if additional diagnostic workup results are available to specify the etiology

Code Hierarchy

└I40Acute myocarditis└I40.9Acute myocarditis, unspecified
└I40.9Acute myocarditis, unspecified

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