CPT® Code 70332

Temporomandibular joint arthrography, as denoted by CPT® Code 70332, is a specialized diagnostic imaging procedure focused on the temporomandibular joint (TMJ). This technique involves the injection of a contrast agent, typically radioactive iodine, directly into the joint space. The primary purpose of this procedure is to visualize the intricate contours of the soft tissues within the TMJ, which is essential for diagnosing various conditions associated with temporomandibular joint disease. The arthrography process is performed using a single 27-gauge needle, which is utilized to inject the contrast material into both the upper and lower compartments of the joint. The resulting images, which may be captured through methods such as videofluoroscopy, display the contrast agent in a greyish or whitish hue, allowing for detailed assessment of the joint's internal structures. This imaging technique is particularly valuable for identifying issues such as displacement or abnormal morphology of the meniscus, perforations in the disk or meniscal attachments, adhesions within the joint capsule, and any abnormalities in the shape or function of the disk itself. By providing a clear view of these internal components, TMJ arthrography plays a crucial role in the accurate diagnosis and management of TMJ disorders.