ICD-10 Code K57.30 – Diverticulosis of large intestine without perforation or abscess without bleeding (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K57.30 – Diverticulosis of large intestine without perforation or abscess without bleeding
What it is
K57.30 identifies diverticulosis in the large intestine when diverticula are present but there is no perforation, abscess, or bleeding. Use it for uncomplicated colonic diverticulosis documented by the provider.
Clinical signs
Clinical features vary; refer to documentation. Diverticulosis is often asymptomatic, though some patients may have incidental findings on colon imaging or endoscopy without signs of acute inflammation or hemorrhage.
When to use this code
Use K57.30 when the record clearly states diverticulosis of the large intestine and specifically excludes perforation, abscess, and bleeding. It also fits when the condition is found incidentally and no diverticulitis is documented. If the note only says “diverticular disease,” check documentation before coding.
Do not use for
Do not use this code for diverticulitis, perforated diverticular disease, abscess, or any episode with gastrointestinal bleeding. Check documentation if the provider describes a different location or complication.
Coding tip
Match the code to the exact complication status in the note; uncomplicated diverticulosis is not the same as diverticulitis.