Malignant neoplasm of transverse colon

This code signifies the presence of a cancerous tumor originating in the transverse segment of the large intestine. This is a primary malignancy, meaning the cancer started in the transverse colon rather than spreading there from another site.

Apply this code when documentation clearly states a primary malignant neoplasm of the transverse colon. This is appropriate for initial diagnosis, treatment, and follow-up care of this specific cancer. Supporting documentation includes pathology reports confirming malignancy and tumor location, as well as physician notes detailing the diagnosis.

• Ensure the documentation specifies "transverse colon" and not another segment of the large intestine.
• Do not use this code for metastatic disease to the transverse colon; instead, code the primary site and the secondary malignancy.
• Always review the pathology report for definitive confirmation of malignancy and precise anatomical location.