CPT® Code 64901

Add-On Code

The CPT® Code 64901 refers to the procedure of performing a nerve graft for each additional nerve using a single strand. This code is utilized when a primary nerve has already been repaired, and additional nerves require similar repair using grafts. The process begins with the exposure of the injured nerve, where the extent of the injury is carefully evaluated. Any damaged tissue may be debrided to prepare the site for grafting. To assess nerve function, nerve testing and monitoring may be conducted, which are reported separately. Microscopic visualization is often employed to meticulously dissect the healthy proximal and distal segments of the nerve, ensuring that they are free from surrounding tissue. The length of the nerve graft is then determined based on the specific requirements of the repair. Following this, the nerve graft is harvested from a donor site, where the donor nerve is exposed and dissected to the desired length. The graft is then divided at both proximal and distal ends for harvesting. The procedure involves suturing single or multiple strands of the donor nerve 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 intervention. It is important to note that this code is specifically for each additional nerve repaired with a single strand graft, while a different code, CPT® 64902, is designated for additional nerves repaired with multiple strand grafts.