K57.33 Diverticulitis of large intestine without perforation or abscess with bleeding
ICD-10-CM · CMS code reference
Official ICD-10-CM description: Diverticulitis of large intestine without perforation or abscess with bleeding
Coding notes
From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.
Excludes1
Not coded together with this code. The exception is when the two conditions are unrelated to each other.
- 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 part of this code, but both can be coded when both are documented.
- diverticulum of appendix (K38.2)
Code also
A second code may be needed. Sequencing depends on the encounter.
- if applicable:
- pelvic abscess (K6A.0-)
- peritonitis (K65.-)
Related codes
K57.21Diverticulitis of large intestine with perforation and abscess with bleeding ICD-10-CMK57.30Diverticulosis of large intestine without perforation or abscess without bleeding ICD-10-CMK57.31Diverticulosis of large intestine without perforation or abscess with bleeding ICD-10-CMK57.32Diverticulitis of large intestine without perforation or abscess without bleeding ICD-10-CMK57.40Diverticulitis of both small and large intestine with perforation and abscess without… ICD-10-CMK57.41Diverticulitis of both small and large intestine with perforation and abscess with… ICD-10-CMK57.50Diverticulosis of both small and large intestine without perforation or abscess without… ICD-10-CMK57.51Diverticulosis of both small and large intestine without perforation or abscess with… ICD-10-CM
Common questions
Is K57.33 a billable code?
Yes. K57.33 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.