Malignant carcinoid tumor of the sigmoid colon

This code represents a primary malignant neuroendocrine tumor originating in the sigmoid colon. Carcinoid tumors are a type of slow-growing cancer that can develop in various parts of the body, with the gastrointestinal tract being a common site. In this specific instance, the tumor is confirmed to be malignant and located within the sigmoid segment of the large intestine.

Use this code when documentation clearly identifies a primary malignant carcinoid tumor specifically located in the sigmoid colon. This diagnosis is typically established through biopsy and histopathological examination. Supporting documentation should include pathology reports confirming the malignancy and the precise anatomical site.

• Ensure the pathology report explicitly states "malignant" and "carcinoid tumor" for the sigmoid colon.
• Do not use this code for benign carcinoid tumors or carcinoid tumors of unspecified malignancy.
• Verify the exact anatomical location; avoid using this code for carcinoid tumors in other parts of the colon or gastrointestinal tract.