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K57

K57: Diverticular disease of intestine

Non-billable headerICD-10-CM

K57 is a non-billable header ICD-10-CM code for diverticular disease of intestine. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • congenital diverticulum of intestine (Q43.8)
  • Meckel's diverticulum (Q43.0)

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • diverticulum of appendix (K38.2)

Code also

Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.

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

Other codes that can never be billed with K57

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • K57.0Diverticulitis of small intestine with perforation and abscess
  • K57.1Diverticular disease of small intestine without perforation or abscess
  • K57.2Diverticulitis of large intestine with perforation and abscess
  • K57.3Diverticular disease of large intestine without perforation or abscess
  • K63.0Abscess of intestine
  • K63.1Perforation of intestine (nontraumatic)
  • K92.2Gastrointestinal hemorrhage, unspecified

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead K57

8 child codes. Green means billable.

ICD-10-CMFY2027· effective October 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.