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A22.9

Billable

Anthrax, unspecified

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

What This Code Means

Anthrax is a serious infectious disease caused by bacteria that can affect the skin, lungs, or digestive system. This code is used when anthrax is diagnosed but the specific type or affected body part is not documented.

Coding Tips

  • Use this unspecified code only when the medical record does not clearly indicate whether anthrax is cutaneous, inhalation, gastrointestinal, or another form; query the provider for more specific documentation when possible
  • Anthrax is a reportable disease in most jurisdictions, so ensure proper reporting requirements are met in addition to coding

Code Hierarchy

A22AnthraxA22.9Anthrax, unspecified
A22.9Anthrax, unspecified

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