Benign neoplasm of rectosigmoid junction

This code signifies the presence of a non-cancerous tumor located precisely at the transition point between the rectum and the sigmoid colon. These benign growths, often polyps, are typically discovered during endoscopic procedures. While not malignant, they may require removal due to symptoms or their potential for future malignant transformation.

Apply this code when documentation explicitly states a benign neoplasm or polyp found at the rectosigmoid junction. This diagnosis is commonly made following colonoscopy with biopsy confirming benign histology. Ensure the physician's report clearly specifies the rectosigmoid junction as the tumor's exact location.

• Distinguish from benign neoplasms of the rectum (D12.8) or sigmoid colon (D12.6) if the exact junction is not specified.
• Do not use for malignant neoplasms; refer to the C18 series for colorectal malignancies.
• Code any associated symptoms (e.g., rectal bleeding, abdominal pain) as secondary diagnoses.