ICD-10 Code K57.52 – Diverticulitis of both small and large intestine without perforation or abscess without bleeding (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K57.52 – Diverticulitis of both small and large intestine without perforation or abscess without bleeding
What it is
This code identifies diverticulitis affecting both the small and large intestine, without perforation, abscess, or bleeding. Use it when documentation clearly states this combined location and uncomplicated presentation.
Clinical signs
Typical findings include abdominal pain, tenderness, and signs of intestinal inflammation. Clinical features vary; refer to documentation, and confirm that no perforation, abscess, or bleeding is reported.
When to use this code
Use K57.52 when the provider documents diverticulitis involving both small and large intestine and specifies it is uncomplicated. It is appropriate when imaging or assessment supports diverticulitis, but there is no mention of perforation, abscess, or hemorrhage. Check documentation if the site or complications are unclear.
Do not use for
Do not use this code for diverticulitis limited to only the small intestine or only the large intestine. Also avoid it if perforation, abscess, or bleeding is documented.
Coding tip
Code only when both intestinal locations are explicitly documented; otherwise, query for the exact site and complication status.