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ICD-10/K57.32

K57.32 ICD-10-CM Code: Diverticulitis of large intestine without perforation or abscess without bleeding

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.

  • MS-DRG 391 — ESOPHAGITIS, GASTROENTERITIS AND MISCELLANEOUS DIGESTIVE DISORDERS WITH MCC (MDC 06)
  • MS-DRG 392 — ESOPHAGITIS, GASTROENTERITIS AND MISCELLANEOUS DIGESTIVE DISORDERS WITHOUT MCC (MDC 06)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Official Registry Overview & Definition

Diverticulitis of large intestine without perforation or abscess without bleeding is a billable ICD-10-CM diagnosis code (K57.32).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for K57.32 in the official ICD-10-CM tabular list.

Excludes1 — Not Coded Here

Conditions that can never be reported with this code; the two are mutually exclusive.

  • diverticular disease of both small and large intestine without perforation or abscess (K57.5-)
  • congenital diverticulum of intestine (Q43.8)
  • Meckel's diverticulum (Q43.0)

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

  • diverticulum of appendix (K38.2)

Code Also

Additional codes that may be required to fully describe the encounter.

  • if applicable:
  • pelvic abscess (K6A.0-)
  • peritonitis (K65.-)

Nearest Codes in This Family

Official ICD-10-CM classifications closest to K57.32 in its code family, with their registry titles.

  • K57.20 — Diverticulitis of large intestine with perforation and abscess without bleeding
  • K57.21 — Diverticulitis of large intestine with perforation and abscess with bleeding
  • K57.3 — Diverticular disease of large intestine without perforation or abscess
  • K57.30 — Diverticulosis of large intestine without perforation or abscess without bleeding
  • K57.31 — Diverticulosis of large intestine without perforation or abscess with bleeding
  • K57.33 — Diverticulitis of large intestine without perforation or abscess with bleeding
  • K57.4 — Diverticulitis of both small and large intestine with perforation and abscess
  • K57.40 — Diverticulitis of both small and large intestine with perforation and abscess without bleeding
  • K57.41 — Diverticulitis of both small and large intestine with perforation and abscess with bleeding
  • K57.5 — Diverticular disease of both small and large intestine without perforation or abscess

View all codes in the K57 family

Indexed Clinical Terms (1)

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.

  • Diverticulitis (acute), intestine, large