CPT® Code 0420T

Destruction of neurofibroma, extensive (cutaneous, dermal extending into subcutaneous); trunk and extremities, extensive, greater than 100 neurofibromas

The CPT® Code 0420T refers to the destruction of extensive cutaneous neurofibromas, specifically when there are more than 100 lesions present on the trunk and extremities. Neurofibromas are benign tumors that arise from peripheral nerve cells and are commonly associated with neurofibromatosis type 1 (NF-1) and type II (NF-2). These tumors can contain various cell types, including Schwann cells, mast cells, fibroblasts, and perineural cells. Clinically, neurofibromas can lead to a range of symptoms such as pain, itching, bleeding, disfigurement, and functional interference, which can significantly impact a patient's quality of life. The procedure for destruction of these lesions can involve multiple techniques, including scraping, shaving, laser cautery, liquid nitrogen application, electrosurgery, and desiccation. The method chosen often depends on the extent and depth of the lesions. For extensive neurofibromas that extend into the subcutaneous layer, electrodesiccation is commonly utilized, where an electrical current is applied to dehydrate the lesion. For more superficial lesions, techniques such as fulguration and electrocoagulation may be appropriate. In cases where the neurofibroma presents as a protruding mass, a combination of scraping or shaving followed by electrodesiccation may be employed to effectively remove the deeper layers of the tumor. It is important to note that for the destruction of fewer than 100 neurofibromas located on the face, head, and neck, CPT® Code 0419T should be used instead.