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A04.71

A04.71Enterocolitis due to Clostridium difficile, recurrent

Billable / specific codeICD-10-CM

A04.71 is a billable, specific ICD-10-CM code for enterocolitis due to clostridium difficile, recurrent. It is valid for submission on a claim.

Risk adjustment

A04.71 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

A04.71 is named in 9 Medicare coverage policies 9 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A56394Billing and Coding: Colonoscopy and Sigmoidoscopy-Diagnostic
  • A56456Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
  • A56632Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
  • A57342Billing and Coding: Diagnostic and Therapeutic Colonoscopy

How A04.71 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to A04.71.

  • ColitisClostridioides difficilerecurrent
  • ColitisClostridium difficilerecurrent
  • Colitispseudomembranousrecurrent
  • EnteritisClostridioides difficilerecurrent
  • Enterocolitispseudomembranousrecurrent
  • Diarrhea, diarrhealdue toClostridium difficilerecurrent
  • EnteritisClostridiumdifficilerecurrent
  • Enterocolitisdue toClostridioides difficilerecurrent
  • Enterocolitisdue toClostridium difficilerecurrent
  • Colitistoxic NECdue toClostridioides difficilerecurrent
  • Colitistoxic NECdue toClostridium difficilerecurrent
  • Enteritisinfectious NOSdue toClostridioides difficilerecurrent

Related codes at this level

Codes that share A04.7. If A04.71 is not quite right, the correct code is usually one of these.

Questions about A04.71

Is A04.71 a billable ICD-10-CM code?
Yes. A04.71 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does A04.71 sit in the tabular list?
Certain infectious and parasitic diseases (A00-B99), in the block Intestinal infectious diseases (A00-A09).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.