CPT® Code 46750

Sphincteroplasty is a surgical procedure aimed at correcting anal or fecal incontinence, which can occur due to damage or weakening of the external and/or internal anal sphincters, or as a result of rectal prolapse. Anal incontinence refers to the inability to retain stool in the rectum, a condition that can significantly impact a patient's quality of life. In adults, this condition is often caused by trauma, such as a tear or laceration, while in children, it is more frequently associated with congenital anomalies. The procedure involves a meticulous approach where the perineum is first cleansed, followed by the administration of a local anesthetic and a vasoconstrictor to minimize bleeding at the surgical site. A curvilinear incision is then made parallel to the external sphincter, allowing for careful dissection of the anal mucosa from any scar tissue and the underlying sphincter muscles. The dissection may extend up to the levator ani muscle, and any scar tissue present is excised to facilitate proper healing and function. The muscle ends may be overlapped to narrow the anal diameter, thereby enhancing continence. Finally, the internal and external sphincters are repaired using sutures, and the overlying mucosa and skin are also sutured to complete the procedure. This code, 46750, is specifically designated for sphincteroplasty performed on adults, while 46751 is used when the procedure is conducted on a child.