CPT® Code 64681

The procedure described by CPT® Code 64681 involves the destruction of the superior hypogastric plexus, a critical nerve structure located in the retroperitoneal space between the L5 and S1 vertebrae. This plexus plays a significant role in transmitting pain signals from the pelvic region. The destruction of this nerve plexus is primarily indicated for the management of pain associated with metastatic cancer in the pelvic area, as well as for nonmalignant chronic pain conditions. The procedure can be performed using various techniques, including the injection of a neurolytic agent or through thermal, electrical, or radiofrequency methods. The use of radiologic monitoring during the procedure is optional, which aids in ensuring accurate needle placement. When radiologic guidance is employed, a needle is inserted at the L5-S1 interspace, and contrast material is injected to verify the correct positioning of the needle in the prevertebral space. The neurolytic agents used for chemical destruction may include substances such as phenol, ethyl alcohol, glycerol, ammonium salt compounds, and hypertonic or hypotonic solutions. Alternatively, thermal or electrical destruction techniques involve the insertion of a probe or needle that generates heat to ablate the nerve tissue. In the case of radiofrequency nerve destruction, an electrode needle is carefully positioned to deliver an electric current that produces heat at the electrode tip, effectively destroying the targeted nerve tissue. This procedure aims to alleviate pain by interrupting the nerve pathways responsible for transmitting pain signals from the pelvic region.