CPT® Code 64911

The CPT® Code 64911 refers to a specific surgical procedure known as nerve repair with the use of an autogenous vein graft, which includes the harvesting of the vein graft. This procedure is performed when nerve function is compromised due to injury, leading to the degeneration of the distal portion of the nerve. In such cases, the proximal nerve segment may still have the potential to regenerate; however, if the gap between the proximal and distal nerve stumps is too extensive, a graft is necessary to facilitate the reconnection and promote nerve regeneration. The procedure involves the insertion of a graft, which can either be a biological nerve tube allograft derived from human vein or a synthetic conduit designed to guide the regenerating axons. The use of an autogenous vein graft is particularly advantageous as it utilizes a vein harvested from the patient’s own body, ensuring biocompatibility and reducing the risk of rejection. During the procedure, the harvested vein is often turned inside out and sutured between the severed nerve ends, taking advantage of the collagen-rich inner layer of the vein wall, which is known to enhance nerve regeneration. As the nerve repair process progresses, new capillaries develop within the vein graft, allowing neurites from the proximal nerve stump to grow around them, thereby restoring the connection and function of the nerve. This code specifically captures the complexity and intricacies involved in repairing a single nerve using the patient’s own vein, highlighting the importance of both the harvesting and the surgical placement of the graft in the overall success of the nerve repair.