Cervical artificial intervertebral total disc replacement, at one motion segment only, including removal of disc and marginal osteophytes, for a patient who: (a) has not had prior spinal surgery at the same cervical level; and (b) is skeletally mature; and (c) has symptomatic degenerative disc disease with radiculopathy; and (d) does not have vertebral osteoporosis; and (e) has failed conservative therapy (Anaes.) (Assist.)