Neurolysis by open operation without transposition, other than a service associated with: (a) a service to which item 39321, 39328, 39329, 39332, 39336, 39339, 39342, 39345, 49774 or 49775 applies; or (b) a service to which item 30023 applies that is performed at the same site (H) (Anaes.) (Assist.)