CPT® Code 63620

Stereotactic radiosurgery (SRS) is a non-invasive medical procedure that utilizes advanced technology to deliver a concentrated dose of radiation to a specific area within the body, particularly targeting spinal lesions. This procedure is performed on a single spinal lesion and employs various forms of radiation delivery systems, including particle beams, gamma rays, or linear accelerators (LINAC). The primary goal of stereotactic radiosurgery is to precisely target and treat tumors or lesions while minimizing exposure to surrounding healthy tissues. The technique involves the use of multiple intersecting beams of radiation that converge on the lesion, allowing for a high dose of radiation to be administered in a single session. Particle beam technology, although less commonly used in the United States, is one method of delivering this treatment. Gamma ray technology, often referred to as gamma knife surgery, utilizes a specialized device that focuses 201 beams of gamma rays on the lesion, making it particularly effective for small to medium-sized tumors. On the other hand, linear accelerators generate high-energy X-ray photons or electrons, which can be manipulated to treat larger lesions through curving paths. Prior to the actual treatment, a planning procedure is conducted, which is separately reportable. This involves imaging techniques such as three-dimensional MRI or CT scans to visualize the lesion accurately. For spinal lesions, a frameless technique is typically employed to enhance precision. Depending on the location of the lesion, different stabilization methods are used; for cervical spine lesions, a molded face mask may be utilized, while for thoracic or lumbar spine lesions, gold fiducial markers are implanted to aid in directing the radiation beams. The treatment plan includes determining the lesion's location and volume, assessing surrounding structures to evaluate potential risks, and calculating the appropriate radiation dose. The procedure is designed to ensure that the radiation is delivered accurately and effectively to achieve the desired therapeutic outcome.