CPT® Code 25120

Excision or curettage of bone cyst or benign tumor of radius or ulna (excluding head or neck of radius and olecranon process);

The CPT® Code 25120 refers to the excision or curettage of a bone cyst or benign tumor located in the radius or ulna, specifically excluding the head or neck of the radius and the olecranon process. A bone cyst is defined as a fluid-filled space within the bone, which can vary in type. One of the most common forms is the unicameral or simple bone cyst, recognized as a benign lesion. Another type, though less common, is the aneurysmal bone cyst, characterized by vascular tissue that surrounds a blood-filled cystic lesion. Additionally, there are various benign bone tumors, including giant cell tumors, chondromyxoid fibromas, and enchondromas. The procedure associated with CPT® Code 25120 involves making an incision in the skin over the affected area of the radial or ulnar shaft or the distal radius or ulna. Following the incision, the soft tissues are carefully dissected to expose the lesion. If a cystic lesion is identified, the bone is incised to create a window, allowing access to the cyst. The fluid within the cyst is then aspirated and sent for laboratory analysis. A curette is utilized to remove the lining of the cystic cavity completely. In cases where a benign tumor is present, the procedure may involve excising the tumor along with a margin of healthy bone to ensure complete removal. This comprehensive approach is essential for addressing the lesion effectively while minimizing the risk of recurrence.