Malignant neoplasm of descending colon

This code signifies a cancerous tumor originating in the descending portion of the large intestine. It indicates the presence of a primary malignant neoplasm affecting this specific segment of the colon.

Use this code when documentation clearly specifies a primary malignant neoplasm located in the descending colon. This applies to initial diagnoses, active treatment, and follow-up care for this specific cancer. Supporting documentation includes pathology reports, operative reports, and physician notes detailing the tumor's location.

• Ensure the documentation explicitly states "descending colon" and not a more general or ambiguous colonic site.
• Distinguish from other colon segments (e.g., transverse, sigmoid) as each has a unique code.
• Sequence appropriately with codes for chemotherapy, radiation therapy, or surgical procedures if applicable.