(1) This section applies if—(a) for section 150 (1) (c) (i) , 151 (1) (c) (i) , 152 (1) (c) (i) , 157 (5) (c) (i) or 159 (1) (c) (i) , an insurer and a worker or a person can not agree that the injury could result in a DPI of more than 15%; or(b) for section 150 (1) (c) (ii) , 151 (1) (c) (ii) , 152 (1) (c) (ii) , 157 (5) (c) (ii) or 159 (1) (c) (ii) , an insurer and a worker or a person can not agree that the injury could result in a DPI of 15% or less.
(2) The degree of permanent impairment that could result from the injury may be decided only by a medical assessment tribunal.
(3) The insurer must refer the question of the degree of permanent impairment to a tribunal for decision.
(4) In deciding the degree of permanent impairment that could result from the injury, a psychiatric or psychological injury must not be combined with another injury.