ICD-10 Code K50.0 – Crohn’s Disease of Small Intestine (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K50.0 – Crohn’s disease of small intestine
What it is
K50.0 identifies Crohn’s disease affecting the small intestine. It is a chronic inflammatory bowel disease that can cause segmental inflammation anywhere in the small bowel.
Clinical signs
Common findings include abdominal pain, diarrhea, weight loss, and evidence of small-bowel inflammation on imaging, endoscopy, or pathology. Clinical features vary; refer to documentation.
When to use this code
Use K50.0 when the provider documents Crohn’s disease limited to, or primarily involving, the small intestine. Apply it when the record clearly supports small-bowel involvement, such as ileal disease or small-intestinal Crohn’s noted on evaluation. Check documentation if the site is not specific.
Do not use for
Do not use this code for Crohn’s disease documented only in the colon, rectum, or both small and large intestine. If the site is unspecified or another inflammatory bowel condition is described, check documentation.
Coding tip
Code the most specific Crohn’s location documented; if the record names multiple GI sites, verify whether a combination code is needed.