ICD10
ICD-10 Code K57.9: Diverticular disease of intestine, part unspecified, without perforation or abscess
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the digestive system (K00-K95).
When is it used?
- May be used when a clinician documents diverticular disease of intestine, part unspecified, without perforation or abscess in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
11Diseases of the digestive system (K00-K95)
block
K55-K64Other diseases of intestines
category
K57Diverticular disease of intestine
currentK57
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
GastroenterologistGeneral Physician
Related codes
K57.90Diverticulosis of intestine, part unspecified, without perforation or abscess without bleedingcodeK57.91Diverticulosis of intestine, part unspecified, without perforation or abscess with bleedingcodeK57.92Diverticulitis of intestine, part unspecified, without perforation or abscess without bleedingcodeK57.93Diverticulitis of intestine, part unspecified, without perforation or abscess with bleedingcode
Sibling codes
K57.0Diverticulitis of small intestine with perforation and abscessK57.1Diverticular disease of small intestine without perforation or abscessK57.2Diverticulitis of large intestine with perforation and abscessK57.3Diverticular disease of large intestine without perforation or abscessK57.4Diverticulitis of both small and large intestine with perforation and abscessK57.5Diverticular disease of both small and large intestine without perforation or abscessK57.8Diverticulitis of intestine, part unspecified, with perforation and abscess
Mapped diagnoses and classifications
SNOMED_CT 63532004high
Diverticula of intestine
Source: SNOMED International ICD-10 map
SNOMED_CT 397881000high
Diverticular disease
Source: SNOMED International ICD-10 map
SNOMED_CT 307496006high
Diverticulitis
Source: SNOMED International ICD-10 map
SNOMED_CT 271366000high
Diverticulitis of gastrointestinal tract
Source: SNOMED International ICD-10 map
SNOMED_CT 735593008high
Diverticulitis of intestine
Source: SNOMED International ICD-10 map
SNOMED_CT 1086601000119100high
Intestinal hemorrhage with diverticulosis
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
K57.9
Replacement codes
K57.90 — Diverticulosis of intestine, part unspecified, without perforation or abscess without bleedingK57.91 — Diverticulosis of intestine, part unspecified, without perforation or abscess with bleedingK57.92 — Diverticulitis of intestine, part unspecified, without perforation or abscess without bleedingK57.93 — Diverticulitis of intestine, part unspecified, without perforation or abscess with bleeding
Common synonyms
Diverticular disease of intestine, part unspecified, without perforation or abscessDiverticular disease of intestine, part, without perforation or abscess
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.