CPT® Code 61564

The procedure described by CPT® Code 61564 involves the surgical excision of a benign tumor located in the cranial bone, which may include conditions such as fibrous dysplasia. This surgical intervention is significant as it not only addresses the tumor itself but also involves the decompression of the optic nerve, which may be affected by the tumor's presence. The excision is performed both intra- and extracranially, indicating that the surgeon will access the tumor from both inside the skull and from the outside, ensuring complete removal of the tumor while minimizing damage to surrounding structures. The optic nerve decompression is a critical component of this procedure, as it aims to relieve pressure on the optic nerve, potentially restoring or preserving vision that may be compromised due to the tumor's growth. This procedure is typically indicated when the tumor poses a risk of neurological impairment or when it causes significant symptoms related to its size or location.