MANDIBLE and MAXILLA, complex bilateral osteotomies or osteectomies of, involving 3 or more such procedures of 1 jaw and 2 such procedures of the other jaw, including genioplasty when performed and transposition of nerves and vessels and bone grafts taken from the same site and stabilisation with fixation by wires, screws, plates or pins, or any combination (Anaes.) (Assist.)