ICD-10 Code K50.8 – Crohn’s disease of both small and large intestine (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K50.8 – Crohn’s disease of both small and large intestine
What it is
K50.8 identifies Crohn’s disease involving both the small and large intestine. Use it when the record clearly documents this distribution rather than a single bowel segment.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include chronic abdominal pain, diarrhea, weight loss, and endoscopic or imaging evidence of inflammatory bowel disease affecting both areas.
When to use this code
Use K50.8 when the provider states Crohn’s disease of both the small and large intestine, or equivalent wording such as ileocolitis. Code it from confirmed diagnoses, discharge summaries, or specialist notes. If the site is not specified, check documentation.
Do not use for
Do not use this code for Crohn’s disease limited to only the small intestine, only the large intestine, or unspecified site. Check documentation if the note describes another inflammatory bowel disorder.
Coding tip
Look for anatomic detail in the assessment or pathology report before assigning K50.8.