CPT® Code 64893

A nerve graft procedure involves the surgical repair of a damaged nerve in the arm or leg using a single strand of nerve tissue. This technique is employed to facilitate a tension-free repair of the injured nerve, which is crucial for restoring proper nerve function. During the procedure, the surgeon first exposes the injured nerve and assesses the extent of the damage. If necessary, any damaged tissue is carefully removed through a process known as debridement. To evaluate the function of the nerve, additional nerve testing and monitoring may be performed, which are reported separately. The procedure also utilizes microscopic visualization to enhance the precision of the surgery. The healthy segments of the nerve, both proximal and distal to the injury, are meticulously dissected from the surrounding tissue to prepare for the graft. The length of the required nerve graft is then determined, and the graft is harvested from a donor site, which involves exposing the donor nerve and dissecting it free from surrounding tissue. Once the graft is obtained, it is sutured end-to-end to the severed ends of the injured nerve. Finally, the overlying soft tissues and skin are repaired in layers to complete the surgical procedure. It is important to note that this code, CPT® 64893, is specifically used when the length of the nerve graft exceeds 4 cm, while CPT® 64892 is applicable for grafts measuring 4 cm or less.