CPT® Code 21740

The CPT® Code 21740 refers to the reconstructive surgical procedure performed to correct pectus excavatum or pectus carinatum, which are congenital deformities of the chest wall. Pectus excavatum, often described as a sunken or hollowed chest, occurs when the sternum is depressed inward, while pectus carinatum, also known as pigeon chest, is characterized by an outward protrusion of the sternum. This procedure is typically conducted under general anesthesia, ensuring that the patient is completely unconscious and free from pain during the operation. The surgical approach involves making an incision over the sternum, which is then deepened to expose the underlying structures, including the ribs. The surgeon carefully examines the ribs and may remove or repair any deformed bony or cartilaginous elements that contribute to the chest wall deformity. Once the ribs and sternum are properly aligned in their anatomical positions, internal fixation devices are utilized to stabilize the area, ensuring that the chest wall maintains its corrected shape. Finally, the incisions made during the procedure are meticulously closed to promote healing and minimize scarring.