CPT® Code 21150

The procedure described by CPT® Code 21150 involves the surgical reconstruction of the midface, specifically utilizing a Le Fort II osteotomy technique. This surgical intervention is typically indicated for patients with significant facial bone deformities, such as those seen in Treacher-Collins Syndrome, which is a genetic disorder characterized by facial bone malformations. The Le Fort II osteotomy targets the pyramidal nasoorbitomaxillary region, which encompasses critical anatomical structures including the frontal process of the maxilla, the nasal bone, the total nasal cartilaginous complex, and the infraorbital rim. The procedure necessitates both intraoral and external skin incisions to gain access to the facial bones, allowing for precise manipulation and correction of the deformity. During the operation, dental extractions may be performed as necessary, and careful tunneling of the palatal mucosa is executed to minimize tissue damage. The surgical approach is comprehensive, involving meticulous exposure of the nasal cavity and surrounding structures to facilitate accurate bone cuts and repositioning. This complex procedure aims to restore functional and aesthetic aspects of the midface, ultimately improving the patient's quality of life.