Benign carcinoid tumor of the ascending colon

This code identifies a non-cancerous neuroendocrine tumor originating in the ascending colon. These tumors are typically slow-growing and arise from enterochromaffin cells within the gastrointestinal tract. While benign, they have the potential for malignant transformation and may secrete hormones causing carcinoid syndrome.

Use this code when documentation confirms a benign carcinoid tumor located specifically in the ascending colon. This diagnosis is often established through endoscopic biopsy and subsequent histopathological examination. Supporting documentation should clearly specify the benign nature and anatomical site.

• Distinguish carefully between benign and malignant carcinoid tumors; malignant forms are coded differently.
• Ensure the specific colon segment (ascending) is documented to support this precise code.
• Do not use this code for carcinoid tumors of uncertain behavior or other specified sites.