CPT® Code 23150

The CPT® Code 23150 refers to the excision or curettage of a bone cyst or benign tumor located in the proximal humerus. A bone cyst is defined as a fluid-filled space within the bone, which can vary in type and presentation. One of the most common forms is the unicameral or simple bone cyst, recognized as a benign lesion that typically does not pose significant health risks. Another type, the aneurysmal bone cyst, is characterized by vascular tissue surrounding a blood-filled cystic lesion, which may require more careful management due to its nature. Additionally, benign bone tumors encompass a variety of conditions, including giant cell tumors, chondromyxoid fibromas, and enchondromas, all of which can occur in the proximal humerus. In the procedure described by CPT® Code 23150, a surgical incision is made over the lesion site on the proximal humerus, allowing for the dissection of soft tissues to expose the lesion. If a cystic lesion is identified, the surgeon incises the bone to create a window, facilitating access to the cyst. The fluid within the cyst is then aspirated and sent for laboratory analysis, which is reportable separately. Following this, a curette is utilized to remove the lining of the cystic cavity completely. In cases where benign tumors are present, the procedure may involve excising the tumor along with a margin of healthy bone to ensure complete removal. This detailed approach is essential for effective treatment and management of bone cysts and benign tumors in the proximal humerus.