CPT® Code 0441T

Ablation, specifically percutaneous cryoablation, is a medical procedure designed to alleviate chronic nerve pain. This minimally invasive technique employs imaging guidance to accurately target the affected nerve(s). During the procedure, a specialized instrument known as a cryoprobe is utilized. The cryoprobe is a hollow needle that delivers a cooling agent, which can be helium, argon, or liquid nitrogen, directly to the targeted nerve. The primary goal of cryoablation is to destroy the myelin sheath surrounding the nerve, effectively interrupting the transmission of pain signals to the brain. The procedure begins with the insertion of one or more cryoprobes through the skin, guided by imaging technology to ensure precise placement. The correct positioning of the probes may be verified through a nerve stimulation test, which confirms that the targeted nerve is accurately located. Once the probes are in place, a pressurized coolant is released, forming an ice ball at the tip of the probe. This ice ball expands and freezes the surrounding tissue, leading to the desired ablation effect. After the procedure, the cryoprobes are carefully removed, completing the process. It is important to note that there are specific CPT® codes associated with this procedure, including code 0440T for upper extremity nerves, code 0441T for lower extremity nerves, and code 0442T for nerve plexus or other truncal nerves, such as the brachial plexus or pudendal nerve.