October 1 update. Our PDGM and ICD-10 tools now use the FY2027 code set: 190 codes added, 30 deleted, and no existing code changed clinical group.

See what changed

ICD-10 · PDGM grouping

K60 Fissure and fistula of anal and rectal regions

All 30 codes in the K60 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.

ICD-10-CM FY2027 · CMS grouper v07.2.26

Codes in family

30

Can lead a claim

30

Cannot lead a claim

0

What CMS assigns to K60

All 30 codes group to MMTA - Gastrointestinal tract and Genitourinary system. None of the 30 is assigned a comorbidity subgroup. Every code can lead a claim. CMS attaches a code-first note to 27 of the 30.

Code first

CMS grouper convention 101, on K60.30, K60.311, K60.312, K60.313, K60.319, K60.321, K60.322, K60.323, K60.329, K60.40, K60.411, K60.412, K60.413, K60.419, K60.421, K60.422, K60.423, K60.429, K60.50, K60.511, K60.512, K60.513, K60.519, K60.521, K60.522, K60.523, K60.529. Code first:

  • , if applicable:
  • Crohn's disease (K50.-)
  • ulcerative colitis (K51.-)

Every code in K60

Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
K60.0Acute anal fissureCan lead a claimJNone
K60.1Chronic anal fissureCan lead a claimJNone
K60.2Anal fissure, unspecifiedCan lead a claimJNone
K60.3 Anal fistula
K60.30Anal fistula, unspecifiedCan lead a claim, code first appliesJNone
K60.31 Anal fistula, simple
K60.311Anal fistula, simple, initialCan lead a claim, code first appliesJNone
K60.312Anal fistula, simple, persistentCan lead a claim, code first appliesJNone
K60.313Anal fistula, simple, recurrentCan lead a claim, code first appliesJNone
K60.319Anal fistula, simple, unspecifiedCan lead a claim, code first appliesJNone
K60.32 Anal fistula, complex
K60.321Anal fistula, complex, initialCan lead a claim, code first appliesJNone
K60.322Anal fistula, complex, persistentCan lead a claim, code first appliesJNone
K60.323Anal fistula, complex, recurrentCan lead a claim, code first appliesJNone
K60.329Anal fistula, complex, unspecifiedCan lead a claim, code first appliesJNone
K60.4 Rectal fistula
K60.40Rectal fistula, unspecifiedCan lead a claim, code first appliesJNone
K60.41 Rectal fistula, simple
K60.411Rectal fistula, simple, initialCan lead a claim, code first appliesJNone
K60.412Rectal fistula, simple, persistentCan lead a claim, code first appliesJNone
K60.413Rectal fistula, simple, recurrentCan lead a claim, code first appliesJNone
K60.419Rectal fistula, simple, unspecifiedCan lead a claim, code first appliesJNone
K60.42 Rectal fistula, complex
K60.421Rectal fistula, complex, initialCan lead a claim, code first appliesJNone
K60.422Rectal fistula, complex, persistentCan lead a claim, code first appliesJNone
K60.423Rectal fistula, complex, recurrentCan lead a claim, code first appliesJNone
K60.429Rectal fistula, complex, unspecifiedCan lead a claim, code first appliesJNone
K60.5 Anorectal fistula
K60.50Anorectal fistula, unspecifiedCan lead a claim, code first appliesJNone
K60.51 Anorectal fistula, simple
K60.511Anorectal fistula, simple, initialCan lead a claim, code first appliesJNone
K60.512Anorectal fistula, simple, persistentCan lead a claim, code first appliesJNone
K60.513Anorectal fistula, simple, recurrentCan lead a claim, code first appliesJNone
K60.519Anorectal fistula, simple, unspecifiedCan lead a claim, code first appliesJNone
K60.52 Anorectal fistula, complex
K60.521Anorectal fistula, complex, initialCan lead a claim, code first appliesJNone
K60.522Anorectal fistula, complex, persistentCan lead a claim, code first appliesJNone
K60.523Anorectal fistula, complex, recurrentCan lead a claim, code first appliesJNone
K60.529Anorectal fistula, complex, unspecifiedCan lead a claim, code first appliesJNone

Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.

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