ICD-10-CM 2027 diagnosis code
K57Diverticular disease of intestine
K57 is a header code, so it can't be reported by itself. Choose one of the 8 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About K57
K57 is the ICD-10-CM diagnosis code for Diverticular disease of intestine. It belongs to block K55-K64 (other diseases of intestines) and chapter 11 (diseases of the digestive system). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: K57.0 (abscess), K57.1 (abscess), K57.2 (abscess), K57.3 (abscess), K57.4 (abscess), K57.5 (abscess), K57.8 (abscess) and K57.9 (part unspecified, without perforation or abscess).
Don't report K57 together with the conditions in its Excludes1 note: congenital diverticulum of intestine (Q43.8) and Meckel's diverticulum (Q43.0).
The conditions in its Excludes2 note aren't part of K57, but may be coded alongside it if the patient has both: diverticulum of appendix (K38.2).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under K57
- K57.0Diverticulitis of small intestine with perforation and abscess
- K57.1Diverticular disease of small intestine without perforation or abscess
- K57.10Diverticulosis of small intestine without perforation or abscess without bleedingBillable
- K57.11Diverticulosis of small intestine without perforation or abscess with bleedingBillable
- K57.12Diverticulitis of small intestine without perforation or abscess without bleedingBillable
- K57.13Diverticulitis of small intestine without perforation or abscess with bleedingBillable
- K57.2Diverticulitis of large intestine with perforation and abscess
- K57.3Diverticular disease of large intestine without perforation or abscess
- K57.30Diverticulosis of large intestine without perforation or abscess without bleedingBillable
- K57.31Diverticulosis of large intestine without perforation or abscess with bleedingBillable
- K57.32Diverticulitis of large intestine without perforation or abscess without bleedingBillable
- K57.33Diverticulitis of large intestine without perforation or abscess with bleedingBillable
- K57.4Diverticulitis of both small and large intestine with perforation and abscess
- K57.5Diverticular disease of both small and large intestine without perforation or abscess
- K57.50Diverticulosis of both small and large intestine without perforation or abscess without bleedingBillable
- K57.51Diverticulosis of both small and large intestine without perforation or abscess with bleedingBillable
- K57.52Diverticulitis of both small and large intestine without perforation or abscess without bleedingBillable
- K57.53Diverticulitis of both small and large intestine without perforation or abscess with bleedingBillable
- K57.8Diverticulitis of intestine, part unspecified, with perforation and abscess
- K57.9Diverticular disease of intestine, part unspecified, without perforation or abscess
- K57.90Diverticulosis of intestine, part unspecified, without perforation or abscess without bleedingBillable
- K57.91Diverticulosis of intestine, part unspecified, without perforation or abscess with bleedingBillable
- K57.92Diverticulitis of intestine, part unspecified, without perforation or abscess without bleedingBillable
- K57.93Diverticulitis of intestine, part unspecified, without perforation or abscess with bleedingBillable
Coding notes
- diverticulum of appendix (K38.2)
Notes that apply from higher levels
Instructions written at a parent level also apply to K57.
Broader instructions also apply from Chapter 11: Diseases of the digestive system.
Codes whose notes reference K57
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about K57
Is K57 billable?
- No. K57 is a header code. Report one of its more specific subcodes instead.