Intracranial stereotactic procedure by any method, other than: (a) a service to which item 40801 applies; or (b) a service associated with a service to which item 39018, 39109, 39113, 39604, 39615, 39638, 39639, 39641, 39651, 39654, 39656, 39700, 39703, 39710, 39712, 39715, 39718, 39720, 39801, 39803, 39818, 39821, 39900, 39903, 40004, 40012, 40106, 40109, 40700, 40703, 40706, 40709 or 40712 applies (H) (Anaes.) (Assist.)