CPT® Code 21480

The temporomandibular joint (TMJ) is a critical structure located on both sides of the jaw, where the mandible (lower jaw) articulates with the temporal bone of the skull. This joint is classified as a gliding joint, which allows for a range of movements essential for functions such as chewing and speaking. The joint's anatomy includes the condyles of the mandible and the articular eminences of the temporal bone, with an articular disc known as the meniscus situated between the two surfaces. A dislocation of the TMJ occurs when the condyle moves excessively forward, becoming lodged in front of the articular eminence, which can lead to significant discomfort and functional impairment. In many cases, muscle spasms surrounding the joint can exacerbate the situation, resulting in the jaw being locked in an open position. To address this condition, local anesthetics and/or intravenous muscle relaxants may be administered to facilitate the procedure. The CPT® Code 21480 specifically refers to the closed treatment of temporomandibular dislocation, whether it is the initial treatment or a subsequent intervention. During this procedure, the healthcare provider will carefully manipulate the mandible by pulling it downward and tilting the chin upward to reposition the condyle back into its normal anatomical position. This technique is essential for restoring function and alleviating pain associated with the dislocation.