ICD-10 Code K50.913 – Crohn’s disease, unspecified, with fistula (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K50.913 – Crohn’s disease, unspecified, with fistula
What it is
K50.913 identifies Crohn’s disease when the site is not specified and a fistula is present. Use it for documented Crohn’s-related fistulizing disease without a more specific Crohn’s subtype.
Clinical signs
Clinical features vary; refer to documentation. Fistulas may connect the bowel to another organ, the skin, or another bowel segment, and Crohn’s disease often includes chronic abdominal symptoms and inflammatory findings.
When to use this code
Use this code when the record clearly states Crohn’s disease, unspecified, with a fistula. It fits encounters where the provider documents a Crohn’s fistula but does not specify location or type of Crohn’s disease.
If the chart names a more specific Crohn’s site or complication, code that documentation instead. Check documentation when fistula details are incomplete or when the fistula is not clearly linked to Crohn’s disease.
Do not use for
Do not use this code for Crohn’s disease without fistula, or for fistulas caused by other conditions. If the provider documents a different Crohn’s subtype, choose the more specific code.
Coding tip
Link the fistula to Crohn’s disease only when the provider explicitly documents that relationship.