ICD-10 Code K51.411 – Inflammatory polyps of colon with rectal bleeding (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K51.411 – Inflammatory polyps of colon with rectal bleeding
What it is
K51.411 identifies inflammatory polyps of the colon when rectal bleeding is documented. It is used for patients with colonic inflammatory polyps associated with ulcerative colitis-related disease.
Clinical signs
Typical findings include visible inflammatory polyps in the colon and rectal bleeding noted in the record. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents inflammatory polyps of the colon and specifically links them to rectal bleeding. It fits endoscopy, pathology, or assessment notes that clearly support both elements. If the bleeding source is not documented, check documentation before coding.
Do not use for
Do not use it for colon polyps without inflammatory features or for rectal bleeding from another documented cause. Do not assume the code applies if bleeding is absent or unspecified.
Coding tip
Confirm that both “inflammatory polyps” and “rectal bleeding” appear in the provider’s documentation before assigning K51.411.