What is the CPT code for an abdominal approach proctopexy with sigmoid resection?

The CPT code for an abdominal approach proctopexy with sigmoid resection is indeed 45550. This code specifically represents the procedure where the rectum is attached to the surrounding structures (proctopexy) via an abdominal approach, along with resection of a portion of the sigmoid colon.

In surgical coding, each procedure has a specific code that captures its details, including the approach and type of resection. In this case, 45550 appropriately encompasses both the proctopexy performed through the abdominal route and the associated sigmoid resection, as it indicates that the procedure involves more than just proctopexy alone.

The other codes listed do not reflect the complete procedure described in the question. For example, 45540 pertains to a proctopexy without resection, while 45560 and 45570 correspond to different surgical scenarios concerning proctopexy and other related procedures, but don’t include the sigmoid resection in the context of an abdominal approach. Therefore, 45550 correctly describes the intervention of both proctopexy and sigmoid resection together.