ICD-10 Code K57.5 – Diverticular disease of both small and large intestine without perforation or abscess (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K57.5 – Diverticular disease of both small and large intestine without perforation or abscess
What it is
K57.5 identifies diverticular disease affecting both the small and large intestine when there is no perforation or abscess. Use it for documented diverticula with uncomplicated disease involving both bowel segments.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include abdominal pain, altered bowel habits, or imaging evidence of diverticula without signs of perforation, abscess, or other complications.
When to use this code
Use this code when the provider documents diverticular disease in both the small and large intestine and explicitly states there is no perforation or abscess. It also fits confirmed uncomplicated diverticulosis or diverticular disease involving both sites. Check documentation if the record does not clearly specify both locations.
Do not use for
Do not use K57.5 for diverticular disease limited to only the small or only the large intestine, or when perforation or abscess is documented. Check documentation for any complication that requires a different code.
Coding tip
Verify both anatomic sites and the absence of perforation or abscess before assigning K57.5.