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K57.8 ICD-10-CA code: Diverticular disease of intestine, part unspecified, with perforation and abscess

K57.8 is the ICD-10-CA code for “Diverticular disease of intestine, part unspecified, with perforation and abscess” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

K57.8

Diverticular disease of intestine, part unspecified, with perforation and abscess

Short description: Diverticlr dis intest NOS w perf & abs

ICD-10-CA · Canada · Also written K578

Index terms

Entries in CIHI’s alphabetical index that lead to K57.8. Searching the index by the condition the note names is how coders reach this code.

  • Rupture, ruptured, diverticulum (intestine)
  • Perforation, perforated (nontraumatic), diverticulum (intestine)
  • Peritonitis (adhesive) (fibrinous) (with effusion), with or following, diverticular disease (intestine)
  • Abscess (embolic) (infective) (metastatic) (multiple) (pyogenic) (septic), with, diverticular disease (intestine)
  • Diverticula, diverticulitis, diverticulosis, diverticulum (acute) (multiple), intestine, with abscess, perforation or peritonitis

Notes for K57.8

As CIHI prints them, with any note K57.8 takes from the headings above it.

Includes

Excludes

Conditions classified elsewhere.

  • Congenital diverticulum of intestine (Q43.8)diverticulum of appendix (K38.2)Meckel's diverticulum (Q43.0)From K57 Diverticular disease of intestine
  • Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 11: Diseases of the digestive system (K00-K93)

Where K57.8 sits

  1. 1ChapterChapter 11: Diseases of the digestive system (K00-K93)
  2. 2Block K55-K64Other diseases of intestines
  3. 3Category K57Diverticular disease of intestine
  4. 4Valid code K57.8Diverticular disease of intestine, part unspecified, with perforation and abscess

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See K57.8 in the CIHI source

Frequently asked questions

What does ICD-10-CA code K57.8 mean?

K57.8 is the ICD-10-CA code for “Diverticular disease of intestine, part unspecified, with perforation and abscess” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is K57.8 in ICD-10-CA?

K57.8 sits under K57 Diverticular disease of intestine, within K55-K64 Other diseases of intestines, within Chapter 11: Diseases of the digestive system (K00-K93).

What coding notes apply to K57.8?

ICD-10-CA lists Includes, Excludes notes for K57.8, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside K57.8

K57.0Diverticular disease of small intestine with perforation and abscessK57.1Diverticular disease of small intestine without perforation or abscessK57.2Diverticular disease of large intestine with perforation and abscessK57.3Diverticular disease of large intestine without perforation or abscessK57.4Diverticular disease of both small and large intestine with perforation and abscessK57.5Diverticular disease of both small and large intestine without perforation or abscessK57.9Diverticular disease of intestine, part unspecified, without perforation or abscess