CPT® Code 45119

Proctectomy, combined abdominoperineal pull-through procedure (eg, colo-anal anastomosis), with creation of colonic reservoir (eg, J-pouch), with diverting enterostomy when performed

The procedure described by CPT® Code 45119 is a proctectomy that involves a combined abdominoperineal pull-through technique, which is specifically designed for patients requiring surgical intervention for conditions affecting the rectum and colon. This complex surgical procedure includes the creation of a colonic reservoir, often referred to as a J-pouch, which serves as a new storage area for stool after the rectum has been removed. The procedure is typically indicated for patients with certain colorectal diseases, such as familial adenomatous polyposis or rectal cancer, where the rectum is compromised and needs to be excised. The operation is performed through a midline abdominal incision, allowing the surgeon to access the abdominal cavity and the colon effectively. The mobilization of the colon is a critical step, as it prepares the segment of the colon that will be fashioned into the reservoir. The meticulous dissection and removal of the rectum, while preserving the anal mucosa, is essential to ensure proper function and healing post-surgery. Additionally, if deemed necessary, a diverting enterostomy may be created to divert stool away from the surgical site, facilitating recovery and reducing the risk of complications. This procedure requires a high level of surgical skill and is typically performed in a hospital setting, with careful postoperative management to ensure optimal recovery and function of the newly created colonic reservoir.