K57.00 Diverticulitis of small intestine with perforation and abscess without bleeding

✓ Billable ICD-10-CM 2026
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The ICD-10-CM code for Diverticulitis of small intestine with perforation and abscess without bleeding is K57.00 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Section
K55-K64: Other diseases of intestines (K55-K64)
Category K57
33 codes (24 billable)
FY2026 Status
Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to K57.00:

  • Perforation, perforated (nontraumatic) (of) › diverticulum (intestine) › small intestine
  • Rupture, ruptured › diverticulum (intestine) › small intestine
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › with › diverticular disease (intestine) › small intestine
  • Peritonitis (adhesive) (bacterial) (fibrinous) (hemorrhagic) (idiopathic) (localized) (perforative) (primary) (with adhesions) (with effusion) › with or following › diverticular disease (intestine) › small intestine
  • Diverticulitis (acute) › intestine › small › with › abscess, perforation

U.S. Hospital Utilization

  • An estimated 4,275 U.S. inpatient stays in 2023 included K57.00 among the documented diagnoses.
  • 2,765 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Chapter 11 reserved for future expansion

11. Chapter 11: Diseases of the Digestive System (K00-K95) Reserved for future guideline expansion

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.11

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

Parent Code

K57 Diverticular disease of intestine

Related Codes in K57

K57 Diverticular disease of intestine K57.0 Diverticulitis of small intestine with perforation and abscess K57.01 Diverticulitis of small intestine with perforation and abscess with bleeding K57.1 Diverticular disease of small intestine without perforation or abscess K57.10 Diverticulosis of small intestine without perforation or abscess without bleeding K57.11 Diverticulosis of small intestine without perforation or abscess with bleeding K57.12 Diverticulitis of small intestine without perforation or abscess without bleeding K57.13 Diverticulitis of small intestine without perforation or abscess with bleeding K57.2 Diverticulitis of large intestine with perforation and abscess K57.20 Diverticulitis of large intestine with perforation and abscess without bleeding K57.21 Diverticulitis of large intestine with perforation and abscess with bleeding K57.3 Diverticular disease of large intestine without perforation or abscess K57.30 Diverticulosis of large intestine without perforation or abscess without bleeding K57.31 Diverticulosis of large intestine without perforation or abscess with bleeding K57.32 Diverticulitis of large intestine without perforation or abscess without bleeding K57.33 Diverticulitis of large intestine without perforation or abscess with bleeding K57.4 Diverticulitis of both small and large intestine with perforation and abscess K57.40 Diverticulitis of both small and large intestine with perforation and abscess without bleeding K57.41 Diverticulitis of both small and large intestine with perforation and abscess with bleeding K57.5 Diverticular disease of both small and large intestine without perforation or abscess
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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