CPT® Code 20957

The procedure described by CPT® Code 20957 involves the harvesting of a bone graft specifically from the metatarsal region of the foot. This process is essential for reconstructive surgery, where the harvested bone is utilized to fill a defect at another anatomical site. During the procedure, the physician carefully isolates and dissects the donor bone while ensuring that the associated blood vessels remain intact. This is crucial as the viability of the graft depends on the preservation of its blood supply. After the bone graft is harvested, the donor site is meticulously closed in layers to promote proper healing and minimize complications. Subsequently, the graft is positioned at the defect site, where the blood vessels from the graft are anastomosed, or surgically connected, to the vessels in the defect area. This connection is vital for ensuring that the graft receives adequate blood flow, which is necessary for its integration and healing. Finally, the defect area is also closed with layered sutures, completing the procedure. This code is specifically designated for cases where the donor site is the metatarsal, distinguishing it from other codes that pertain to grafts taken from different anatomical locations, such as the fibula or iliac crest.