CPT® Code 61797

Add-On Code

Stereotactic radiosurgery (particle beam, gamma ray, or linear accelerator); each additional cranial lesion, simple (List separately in addition to code for primary procedure)

Stereotactic radiosurgery (SRS) is a non-invasive medical procedure that utilizes advanced technology to deliver high doses of radiation precisely to targeted areas within the cranial cavity. This technique is particularly effective for treating various types of cranial lesions, including tumors and vascular malformations. The procedure can be performed using different modalities, such as particle beams, gamma rays, or linear accelerators, each offering unique advantages depending on the specific characteristics of the lesion being treated. In the context of CPT® Code 61797, this code specifically refers to the treatment of each additional simple cranial lesion following the primary procedure, which is coded separately under CPT® Code 61796. The use of stereotactic frames ensures that the patient's head remains immobile during treatment, allowing for the precise targeting of radiation beams. This meticulous approach minimizes damage to surrounding healthy tissue while maximizing the therapeutic effect on the lesion. The planning phase of the procedure involves detailed imaging studies, such as MRI or CT scans, to accurately assess the lesion's size, location, and the potential impact on adjacent structures. This comprehensive planning is crucial for determining the appropriate radiation dose and ensuring optimal treatment outcomes.