CPT® Code 44721

The procedure described by CPT® Code 44721 involves the backbench reconstruction of an intestinal allograft, which can be derived from either a cadaver or a living donor, prior to its transplantation into a recipient. This specific code pertains to the arterial anastomosis aspect of the procedure. In this context, an allograft refers to the segment of intestine that is harvested from a donor and is intended for transplantation. The backbench reconstruction is a critical preparatory step that ensures the allograft is properly configured for successful integration into the recipient's body. During this process, the arterial graft, which is also procured from the donor, is carefully handled and preserved in a cold solution to maintain its viability. The superior mesenteric artery, which is a major blood vessel supplying the intestines, is then sutured to the extension arterial graft in an end-to-end fashion. This meticulous surgical technique is essential for establishing proper blood flow to the transplanted intestine, thereby enhancing the chances of a successful transplant outcome. If additional arterial extension grafts are necessary to achieve optimal vascular connection, each of these is reported separately under the appropriate coding guidelines.