CPT® Code 64912

The procedure described by CPT® Code 64912 involves the surgical repair of an injured nerve using a nerve allograft, specifically the first strand or cable. This technique is employed to facilitate a tension-free repair, which is crucial for the successful regeneration of nerve fibers, known as axons, following an injury. The process begins with the exposure of the damaged nerve, allowing the surgeon to assess the extent of the injury accurately. Utilizing microscopic visualization, the surgeon carefully debrides and trims the proximal and distal ends of the injured nerve until healthy fascicular structures are identified. This meticulous approach ensures that the repair is made on viable nerve tissue, which is essential for optimal healing. Once the healthy nerve structure is located, the surgeon measures the length of the nerve deficit and the diameter of the nerve to select an appropriately sized nerve allograft, which is typically sourced from a cadaver. The allograft is then prepared and shaped to fit the specific requirements of the repair. The single-strand nerve graft is sutured to the epineurium, the outer layer of the nerve, effectively connecting the proximal and distal ends of the injured nerve while preserving its anatomical integrity. In cases where the nerve diameter is large, additional strands of allograft may be necessary to adequately bridge the gap created by the injury. After the nerve repair is completed, the surrounding soft tissues and skin are meticulously repaired in layers to promote optimal healing. This procedure is critical for restoring nerve function and alleviating symptoms associated with nerve injuries.