ICD-10 Code K50.819 – Crohn’s disease of both small and large intestine with unspecified complications (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K50.819 – Crohn’s disease of both small and large intestine with unspecified complications
What it is
K50.819 identifies Crohn’s disease affecting both the small and large intestine when the record does not specify the complication. Use it for documented Crohn’s involvement across both bowel segments with an unspecified complication.
Clinical signs
Typical findings include chronic abdominal pain, diarrhea, weight loss, and evidence of inflammatory bowel disease involving both the ileum and colon. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents Crohn’s disease of both small and large intestine and does not name the complication. It also fits when the chart confirms both sites are involved, but the complication is not further defined. Check documentation if the record names a specific complication or only one bowel segment.
Do not use for
Do not use K50.819 if the documentation specifies a different Crohn’s subtype, such as isolated small intestine or large intestine disease. Do not use it when the complication is clearly described and another code is more specific.
Coding tip
Match the code to both anatomic site and stated complication; if either is more specific, code to that level.