MCMCB Pro
K60.311

K60.311Anal fistula, simple, initial

Billable / specific codeICD-10-CM

K60.311 is a billable, specific ICD-10-CM code for anal fistula, simple, initial. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Anal fistula, simple, new

Risk adjustment

K60.311 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

K60.311 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.

  • A56632Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
  • A57185Billing and Coding: Botulinum Toxin Injections
  • A57186Billing and Coding: Botulinum Toxin Injections
  • A57427Billing and Coding: Transrectal Ultrasound

How K60.311 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 K60.311.

  • Fistulaanus, analsimpleinitial
  • Fistulaanus, analsimplenew

Related codes at this level

Codes that share K60.31. If K60.311 is not quite right, the correct code is usually one of these.

Questions about K60.311

Is K60.311 a billable ICD-10-CM code?
Yes. K60.311 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does K60.311 sit in the tabular list?
Diseases of the digestive system (K00-K95), in the block Other diseases of intestines (K55-K64).
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.