CPT® Code 21490

The CPT® Code 21490 refers to the open treatment of temporomandibular dislocation, a surgical procedure aimed at addressing dislocations of the temporomandibular joint (TMJ), which connects the jawbone to the skull. This procedure is typically indicated when a dislocation occurs, causing significant pain, dysfunction, or inability to properly move the jaw. The surgery involves making an incision near or in the ear to gain access to the joint. Once the joint is exposed, the physician utilizes specialized medical instruments to rearticulate the condyle, which is the rounded end of the jawbone, back into its proper position within the joint. In cases where there is damage to the ligaments surrounding the joint, the surgeon will repair this damage to restore stability and function. After the necessary adjustments and repairs are made, the incision is then closed, completing the procedure. This intervention is crucial for patients experiencing chronic dislocations or severe symptoms that cannot be managed through conservative treatment methods.