CPT® Code 64892

The procedure described by CPT® Code 64892 involves the surgical repair of a nerve in the arm or leg using a single strand nerve graft that measures up to 4 cm in length. This technique is employed to facilitate a tension-free repair of an 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 involves the use of microscopic visualization to ensure precision in the dissection of the healthy proximal and distal segments of the nerve, which are freed from surrounding tissue. The length of the required nerve graft is then determined, and the graft is harvested from a donor site where the nerve is exposed and dissected free of surrounding tissue. After 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 meticulously repaired in layers to complete the surgical procedure. It is important to use CPT® Code 64892 specifically when the length of the single strand nerve graft is 4 cm or less, while CPT® Code 64893 should be used for grafts exceeding this length.