CPT® Code 45160

The CPT® Code 45160 refers to the surgical procedure involving the excision of a rectal tumor through a proctotomy, utilizing either a transsacral or transcoccygeal approach. This procedure is indicated when a tumor is present in the rectal area, necessitating surgical intervention for removal. The approach begins with an incision made along the midline of the back, starting approximately 2 cm above the anal verge and extending upwards for about 8 to 10 cm. This incision allows access to the rectum by excising the coccyx and resecting the lower sacral segments as required for adequate exposure. Once the rectum is accessible, an incision is made directly at the tumor site, enabling the surgeon to excise the tumor along with a margin of healthy tissue to ensure complete removal. To confirm that the excised margins are clear of cancerous cells, frozen sections are obtained during the procedure. The excised specimen is then sent to a laboratory for pathological evaluation, which is also separately reportable. After the tumor removal, the rectum is repaired with sutures, and the initial incision is closed, completing the procedure. This method is distinct from other excision techniques, such as those described in CPT® Codes 45171 and 45172, which utilize a transanal approach for tumor removal.