CPT® Code 64630

The pudendal nerve plays a crucial role in controlling sensation in the perineal area, which includes the region between the genitals and the anus, the rectum, and the external genitalia. The procedure described by CPT® Code 64630 involves the destruction of the pudendal nerve, primarily aimed at alleviating chronic pain conditions associated with this nerve. This destruction can be achieved through various methods, including the injection of a neurolytic agent or the application of thermal, electrical, or radiofrequency techniques. Among these methods, radiofrequency destruction has emerged as the most commonly utilized technique in contemporary practice, although other approaches may be employed depending on the specific pain syndrome being treated. The procedure typically begins with the introduction of an electrode needle through the skin, which is then carefully advanced toward the targeted neural tissue. This step is critical as it allows for precise motor and sensory testing to confirm the accurate positioning of the needle at the nerve responsible for the patient's pain. Once the correct nerve pathway is identified, the destruction of the nerve is performed, either by injecting a neurolytic chemical agent along the nerve pathway or by utilizing thermal or electrical modalities to generate heat and destroy the nerve tissue. Neurolytic agents that may be used include phenol, ethyl alcohol, glycerol, ammonium salt compounds, and hypertonic or hypotonic solutions. The choice of technique and agent depends on the clinical scenario and the specific characteristics of the pain being treated.