CPT® Code 20956

The procedure described by CPT® Code 20956 involves the harvesting of a bone graft specifically from the iliac crest, which is a prominent bone located in the pelvis. This surgical technique is utilized for reconstructive purposes in subsequent procedures where bone tissue is required to fill a defect or void in another area of the body. 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 its blood supply. After the bone graft is harvested, the donor site is meticulously closed in layers to promote proper healing and minimize complications. The harvested graft is then strategically placed into the defect area, where it is essential to connect the blood vessels of the graft to those of the recipient site. This microvascular anastomosis is vital for the graft's survival and integration into the surrounding tissue. Finally, the defect area is closed with layered sutures to ensure stability and support during the healing process. It is important to note that there are specific codes for harvesting bone grafts from different anatomical sites, such as code 20955 for the fibula, code 20957 for the metatarsal, and code 20962 for other donor sites not specified.