ICD-10 Code K57.50 – Diverticulosis of both small and large intestine without perforation or abscess without bleeding (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K57.50 – Diverticulosis of both small and large intestine without perforation or abscess without bleeding
What it is
This code identifies diverticulosis affecting both the small and large intestine, without perforation, abscess, or bleeding. It describes the presence of diverticula, not active inflammation or a complication.
Clinical signs
Clinical features vary; refer to documentation. Diverticulosis is often found incidentally, and patients may have no symptoms or only nonspecific abdominal discomfort.
When to use this code
Use K57.50 when the record clearly documents diverticulosis in both the small and large intestine and states there is no perforation, abscess, or bleeding. It also fits encounters where the condition is being monitored or noted as a current diagnosis. Check documentation if the site or complication status is unclear.
Do not use for
Do not use this code for diverticulitis, since that implies inflammation. Also avoid it if the chart documents bleeding, perforation, abscess, or a different intestinal location.
Coding tip
Confirm both the anatomic site and the absence of complications before assigning K57.50.