(1) If the tribunal considers that the terms of a reference to it involve—(a) both medical and non-medical matters; or(b) entirely non-medical matters;the tribunal may refer the non-medical matters back to the insurer for a decision.
(2) To remove any doubt, it is declared that if the tribunal decides a medical matter mentioned in subsection (1) (a) , section 515 applies to that decision.
(3) Section 513 applies to a reference back to the insurer under subsection (1) .