K57.41Diverticulitis of both small and large intestine with perforation and abscess with bleeding

K57.41 is the ICD-10-CM diagnosis code for Diverticulitis of both small and large intestine with perforation and abscess with bleeding. It belongs to category K57 (Diverticular disease of intestine), block K55-K64 (other diseases of intestines) and chapter 11 (diseases of the digestive system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within K57.4 (Diverticulitis of both small and large intestine with perforation and abscess), K57.41 is specifically for Diverticulitis of both small and large intestine with perforation and abscess with bleeding. Related codes cover without bleeding (K57.40).

As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 377 (Gastrointestinal Hemorrhage with MCC, relative weight 1.8127), DRG 378 (Gastrointestinal Hemorrhage with CC, relative weight 0.9732) and DRG 379 (Gastrointestinal Hemorrhage without CC/MCC, relative weight 0.6381), in MDC 06 (Diseases and Disorders of the Digestive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 562.03 (Diverticulitis of small intestine with hemorrhage), 562.13 (Diverticulitis of colon with hemorrhage) and 569.5 (abscess of intestine).