CPT® Code 26205

The CPT® Code 26205 refers to the procedure of excising or curettaging a bone cyst or benign tumor located in the metacarpal bone, accompanied by the use of an autograft, which includes the process of obtaining the graft. A bone cyst is defined as a fluid-filled cavity within the bone, which can vary in type and presentation. One prevalent form is the unicameral or simple bone cyst, recognized as a benign lesion. Another type, the aneurysmal bone cyst, is characterized by vascular tissue that encases a blood-filled cystic lesion. Additionally, there are various benign bone tumors, such as giant cell tumors, chondromyxoid fibromas, and enchondromas, which may also necessitate surgical intervention. The procedure begins with an incision made over the affected metacarpal bone, followed by dissection of the soft tissues to expose the lesion. If a cystic lesion is identified, the bone is incised to create a window, allowing for the aspiration of fluid, which is then sent for laboratory analysis. The lining of the cystic cavity is meticulously removed using a curette. In cases where benign tumors are present, the excision involves removing the tumor along with a margin of healthy bone. Following the excision or curettage, the procedure includes the acquisition of healthy bone, either from the same site or from a donor site, such as the iliac crest, which is then packed into the defect created in the metacarpal bone, facilitating proper healing and structural integrity.