CPT® Code 27066

Excision of bone cyst or benign tumor, wing of ilium, symphysis pubis, or greater trochanter of femur; deep (subfascial), includes autograft, when performed

The CPT® Code 27066 refers to the excision of a bone cyst or benign tumor located in specific areas of the pelvis or proximal femur, particularly the wing of the ilium, symphysis pubis, or greater trochanter of the femur. This procedure is classified as a deep excision, which means it involves deeper anatomical structures and requires more extensive dissection of soft tissues compared to superficial procedures. A bone cyst is defined as a fluid-filled space within the bone, which can vary in type, with common examples being unicameral or simple bone cysts and less frequently, aneurysmal bone cysts. Benign bone tumors, which may also necessitate excision, include various types such as giant cell tumors, chondromyxoid fibromas, and enchondromas. The procedure not only involves the removal of the cyst or tumor but may also include the use of an autograft, which is a surgical procedure where bone is harvested from the patient and used to fill the defect left after the excision. This code is essential for accurately documenting and billing for the surgical intervention performed on these deeper bone lesions, ensuring proper reimbursement and compliance with coding standards.