CPT® Code 21100

The procedure described by CPT® Code 21100 involves the application of a halo-type appliance specifically designed for maxillofacial fixation. This type of device is crucial in stabilizing the facial structure, particularly in cases where there is a need for immobilization due to trauma, surgical intervention, or other medical conditions affecting the maxillofacial region. The halo appliance is secured to the patient's head using screws that penetrate the skull and are anchored to the maxilla, which is the upper jawbone. In instances where the patient does not have natural teeth, the procedure allows for the fitting of dentures to ensure proper attachment of the device. Importantly, this code encompasses both the application and the removal of the halo-type appliance, indicating that the entire process is considered a single procedure for coding and billing purposes.