---
title: "ICD-10-CM K57.40: Diverticulitis of both small and large… | BillingBrief"
description: "ICD-10-CM code K57.40: Diverticulitis of both small and large intestine with perforation and abscess without. Category, related codes, and the official…"
canonical: "https://billingbrief.com/icd10/k57.40/"
language: "en"
---

# K57.40 Diverticulitis of both small and large intestine with perforation and abscess without…

ICD-10-CM · [CMS code reference](#source)

**Official ICD-10-CM description:** Diverticulitis of both small and large intestine with perforation and abscess without 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.

-   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

-   [`K57.30` Diverticulosis of large intestine without perforation or abscess without bleeding ICD-10-CM](https://billingbrief.com/icd10/k57.30/)
-   [`K57.31` Diverticulosis of large intestine without perforation or abscess with bleeding ICD-10-CM](https://billingbrief.com/icd10/k57.31/)
-   [`K57.32` Diverticulitis of large intestine without perforation or abscess without bleeding ICD-10-CM](https://billingbrief.com/icd10/k57.32/)
-   [`K57.33` Diverticulitis of large intestine without perforation or abscess with bleeding ICD-10-CM](https://billingbrief.com/icd10/k57.33/)
-   [`K57.41` Diverticulitis of both small and large intestine with perforation and abscess with… ICD-10-CM](https://billingbrief.com/icd10/k57.41/)
-   [`K57.50` Diverticulosis of both small and large intestine without perforation or abscess without… ICD-10-CM](https://billingbrief.com/icd10/k57.50/)
-   [`K57.51` Diverticulosis of both small and large intestine without perforation or abscess with… ICD-10-CM](https://billingbrief.com/icd10/k57.51/)
-   [`K57.52` Diverticulitis of both small and large intestine without perforation or abscess without… ICD-10-CM](https://billingbrief.com/icd10/k57.52/)

## Common questions

### Is K57.40 a billable code?

Yes. K57.40 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

K57 Diverticular disease of intestine

Chapter

Diseases of the digestive system

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).