Fixation of motion segment with vertebral body screw, pedicle screw or hook instrumentation including sublaminar tapes or wires, one motion segment, excluding vertebral body tethering for the treatment of scoliosis and not being a service associated with a service to which item 51020, 51022, 51023, 51024, 51025 or 51026 applies (H) (Anaes.) (Assist.)