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

K57 Diverticular disease of intestine

All 24 codes in the K57 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

24

Can lead a claim

24

Cannot lead a claim

0

What CMS assigns to K57

All 24 codes group to MMTA - Gastrointestinal tract and Genitourinary system. None of the 24 is assigned a comorbidity subgroup. Every code can lead a claim.

Every code in K57

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
K57.0 Diverticulitis of small intestine with perforation and abscess
K57.00Diverticulitis of small intestine with perforation and abscess without bleedingCMS: Dvtrcli of sm int w perforation and abscess w/o bleedingCan lead a claimJNone
K57.01Diverticulitis of small intestine with perforation and abscess with bleedingCMS: Dvtrcli of sm int w perforation and abscess w bleedingCan lead a claimJNone
K57.1 Diverticular disease of small intestine without perforation or abscess
K57.10Diverticulosis of small intestine without perforation or abscess without bleedingCMS: Dvrtclos of sm int w/o perforation or abscess w/o bleedingCan lead a claimJNone
K57.11Diverticulosis of small intestine without perforation or abscess with bleedingCMS: Dvrtclos of sm int w/o perforation or abscess w bleedingCan lead a claimJNone
K57.12Diverticulitis of small intestine without perforation or abscess without bleedingCMS: Dvtrcli of sm int w/o perforation or abscess w/o bleedingCan lead a claimJNone
K57.13Diverticulitis of small intestine without perforation or abscess with bleedingCMS: Dvtrcli of sm int w/o perforation or abscess w bleedingCan lead a claimJNone
K57.2 Diverticulitis of large intestine with perforation and abscess
K57.20Diverticulitis of large intestine with perforation and abscess without bleedingCMS: Dvtrcli of lg int w perforation and abscess w/o bleedingCan lead a claimJNone
K57.21Diverticulitis of large intestine with perforation and abscess with bleedingCMS: Dvtrcli of lg int w perforation and abscess w bleedingCan lead a claimJNone
K57.3 Diverticular disease of large intestine without perforation or abscess
K57.30Diverticulosis of large intestine without perforation or abscess without bleedingCMS: Dvrtclos of lg int w/o perforation or abscess w/o bleedingCan lead a claimJNone
K57.31Diverticulosis of large intestine without perforation or abscess with bleedingCMS: Dvrtclos of lg int w/o perforation or abscess w bleedingCan lead a claimJNone
K57.32Diverticulitis of large intestine without perforation or abscess without bleedingCMS: Dvtrcli of lg int w/o perforation or abscess w/o bleedingCan lead a claimJNone
K57.33Diverticulitis of large intestine without perforation or abscess with bleedingCMS: Dvtrcli of lg int w/o perforation or abscess w bleedingCan lead a claimJNone
K57.4 Diverticulitis of both small and large intestine with perforation and abscess
K57.40Diverticulitis of both small and large intestine with perforation and abscess without bleedingCMS: Dvtrcli of both small and lg int w perf and abscs w/o bleedCan lead a claimJNone
K57.41Diverticulitis of both small and large intestine with perforation and abscess with bleedingCMS: Dvtrcli of both small and lg int w perf and abscess w bleedCan lead a claimJNone
K57.5 Diverticular disease of both small and large intestine without perforation or abscess
K57.50Diverticulosis of both small and large intestine without perforation or abscess without bleedingCMS: Dvrtclos of both sm and lg int w/o perf or abscs w/o bleedCan lead a claimJNone
K57.51Diverticulosis of both small and large intestine without perforation or abscess with bleedingCMS: Dvrtclos of both small and lg int w/o perf or abscs w bleedCan lead a claimJNone
K57.52Diverticulitis of both small and large intestine without perforation or abscess without bleedingCMS: Dvtrcli of both small and lg int w/o perf or abscs w/o bleedCan lead a claimJNone
K57.53Diverticulitis of both small and large intestine without perforation or abscess with bleedingCMS: Dvtrcli of both small and lg int w/o perf or abscess w bleedCan lead a claimJNone
K57.8 Diverticulitis of intestine, part unspecified, with perforation and abscess
K57.80Diverticulitis of intestine, part unspecified, with perforation and abscess without bleedingCMS: Dvtrcli of intest, part unsp, w perf and abscess w/o bleedCan lead a claimJNone
K57.81Diverticulitis of intestine, part unspecified, with perforation and abscess with bleedingCMS: Dvtrcli of intest, part unsp, w perf and abscess w bleedingCan lead a claimJNone
K57.9 Diverticular disease of intestine, part unspecified, without perforation or abscess
K57.90Diverticulosis of intestine, part unspecified, without perforation or abscess without bleedingCMS: Dvrtclos of intest, part unsp, w/o perf or abscess w/o bleedCan lead a claimJNone
K57.91Diverticulosis of intestine, part unspecified, without perforation or abscess with bleedingCMS: Dvrtclos of intest, part unsp, w/o perf or abscess w bleedCan lead a claimJNone
K57.92Diverticulitis of intestine, part unspecified, without perforation or abscess without bleedingCMS: Dvtrcli of intest, part unsp, w/o perf or abscess w/o bleedCan lead a claimJNone
K57.93Diverticulitis of intestine, part unspecified, without perforation or abscess with bleedingCMS: Dvtrcli of intest, part unsp, w/o perf or abscess w bleedingCan lead a claimJNone

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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