ICD-10 Code K57.90 – Diverticulosis of intestine, part unspecified, without perforation or abscess without bleeding (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K57.90 – Diverticulosis of intestine, part unspecified, without perforation or abscess without bleeding
What it is
K57.90 identifies diverticulosis in an unspecified part of the intestine without perforation, abscess, or bleeding. It means outpouchings are present, but there is no documented complication.
Clinical signs
Clinical features vary; refer to documentation. Diverticulosis is often incidental on imaging or endoscopy, and many patients have no symptoms unless the record notes related findings.
When to use this code
Use K57.90 when the provider documents diverticulosis, but does not specify the intestinal site and there is no perforation, abscess, or bleeding. It also fits when the chart confirms uncomplicated diverticulosis without diverticulitis.
Do not use for
Do not use this code if the record shows diverticulitis, bleeding, perforation, or abscess. If the intestinal location is specified, choose the more specific diverticulosis code.
Coding tip
Check the note for site and complications first; unspecified coding is appropriate only when those details are truly absent.