ICD-10 Code K51.412 – Inflammatory polyps of colon with intestinal obstruction (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K51.412 – Inflammatory polyps of colon with intestinal obstruction
What it is
This code identifies inflammatory polyps in the colon when they are documented with intestinal obstruction. Use it when the record shows both the polyp condition and blockage of bowel passage.
Clinical signs
Typical findings may include abdominal distention, cramping, constipation, vomiting, or decreased stool output. Clinical features vary; refer to documentation for the confirmed obstruction and colon involvement.
When to use this code
Use K51.412 when the provider documents inflammatory polyps of the colon and states that intestinal obstruction is present. It may appear in endoscopy, imaging, or operative notes when bowel narrowing or blockage is attributed to the colonic polyps. Do not code obstruction unless it is clearly documented.
Do not use for
Do not use this code for colon polyps without obstruction, or for obstruction caused by another condition. Check documentation if the chart does not clearly link the obstruction to inflammatory polyps.
Coding tip
Confirm both the polyp diagnosis and the obstructive component in the same record before assigning this code.