A 50-year-old male is diagnosed with a tumor of the skull ba…

A 50-year-old male is diagnosed with a tumor of the skull base just below the occipital tonsils. The neurosurgeon performs a transpetrosal approach to the posterior cranial fossa. He then performs an intradural removal of the tumor of the posterior cranial fossa at the base of the skull. Dural repair is done, and the area is closed with Neurolon. What CPT® code(s) is/are reported?