ICD-10 Code K57.10 – Diverticulosis of small intestine without perforation or abscess without bleeding (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K57.10 – Diverticulosis of small intestine without perforation or abscess without bleeding
What it is
K57.10 identifies diverticulosis in the small intestine when there is no perforation, abscess, or bleeding. It describes the presence of diverticula without documented complication.
Clinical signs
Clinical features vary; refer to documentation. This code is used when imaging, endoscopy, or operative findings document small-intestinal diverticulosis without signs of rupture, abscess, or hemorrhage.
When to use this code
Use K57.10 when the provider documents diverticulosis of the small intestine and specifically states there is no perforation, abscess, or bleeding. It may also fit incidental findings recorded during evaluation for another complaint.
Code it only when the record clearly supports the location and uncomplicated status. If the note mentions inflammation or bleeding, check documentation and select the more specific code if appropriate.
Do not use for
Do not use this code for diverticulosis with perforation, abscess, or bleeding. It also should not be used for colonic diverticulosis or when the documentation does not specify the small intestine.
Coding tip
Verify both the anatomic site and the absence of complications before assigning K57.10.