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A08.31

Billable

Calicivirus enteritis

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

What This Code Means

Calicivirus enteritis is an intestinal infection caused by calicivirus that causes inflammation of the stomach and intestines, leading to diarrhea, vomiting, and abdominal discomfort. This viral infection is contagious and commonly spreads through contaminated food or water.

Coding Tips

  • •Verify the causative organism is specifically calicivirus (not norovirus or sapovirus, which have separate codes) by reviewing laboratory results or clinical documentation
  • •Code only the enteritis manifestation with A08.31; do not separately code gastroenteritis unless the documentation specifically distinguishes different sites of inflammation

Code Hierarchy

└A08Viral and other specified intestinal infections└A08.3Other viral enteritis└A08.31Calicivirus enteritis
└A08.31Calicivirus enteritis

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