CPT® Code 0348T

Radiologic examination, radiostereometric analysis (RSA); spine, (includes cervical, thoracic and lumbosacral, when performed)

Radiostereometric analysis (RSA) is a specialized imaging technique that utilizes two X-ray images taken from different angles simultaneously. This method employs previously implanted tantalum beads as reference points, which are crucial for creating a precise three-dimensional representation of skeletal structures. The primary purpose of RSA is to detect any movement of bones or changes in the positioning of implants over time. The tantalum beads can be inserted directly into the bone surrounding an implant or can be affixed in a stable position to a spinal cage that is placed in front of the patient during the imaging process. This advanced imaging technique is particularly valuable in assessing and monitoring the integrity of growth plates, evaluating the stability of total joint replacement implants, and examining spinal fusions. Additionally, RSA is utilized for kinematic studies of various joints, including the knee, spine, and shoulder. The specific CPT® code 0348T is designated for radiostereometric analysis of the spine, which encompasses the cervical, thoracic, and lumbosacral regions when performed. This code is distinct from 0349T, which pertains to RSA of the upper extremities, and 0350T, which is used for RSA of the lower extremities.