CPT® Code 64766

The obturator nerve is a critical structure that originates from the lumbar plexus, a network of nerves in the lower back. It travels through the pelvis, entering the obturator canal, and extends into the thigh, where it plays a significant role in motor and sensory functions of the lower limb. The procedure described by CPT® Code 64766 involves the transection or avulsion of the obturator nerve within the pelvic cavity, which can be performed with or without an adductor tenotomy. This surgical intervention is typically indicated for conditions that necessitate the disruption of the nerve's function, potentially alleviating pain or addressing other underlying issues. The approach taken in this procedure is intrapelvic, utilizing an extraperitoneal method, which allows for direct access to the nerve while minimizing disturbance to the surrounding abdominal structures. This contrasts with the extrapelvic approach described in CPT® Code 64763, where the procedure is performed outside the pelvic cavity. Understanding the anatomy and pathway of the obturator nerve is essential for healthcare professionals involved in the coding and billing of this procedure, as it ensures accurate representation of the surgical intervention performed.