CPT® Code 44157

Colectomy, total, abdominal, with proctectomy; with ileoanal anastomosis, includes loop ileostomy, and rectal mucosectomy, when performed

The procedure described by CPT® Code 44157 involves a total abdominal colectomy with proctectomy, which is a surgical operation that entails the complete removal of the colon and rectum. This procedure is performed through an abdominal incision, allowing the surgeon to access the entire colon and rectum for mobilization. The term "proctectomy" refers specifically to the surgical removal of the rectum. Following the removal, an ileoanal anastomosis is created, which is a surgical connection between the end of the ileum (the last part of the small intestine) and the anus. This connection allows for the passage of stool through the anus after the surgery. Additionally, the procedure may include a loop ileostomy, which is an artificial opening created in the abdominal wall to allow the ileum to empty its contents externally while the newly formed anastomosis heals. A rectal mucosectomy may also be performed, which involves the removal of the mucosal lining of the rectum. This comprehensive approach is typically indicated for conditions affecting the colon and rectum, ensuring that the patient can maintain bowel function post-surgery.