"(5) If the worker and the employer cannot agree on whether the degree of disability is not less than the relevant level, the worker may, subject to subsection (6), refer the question to the Director.
(6) A question can only be referred under subsection (5) if the worker produces to the Director medical evidence from a medical practitioner indicating that, in the medical practitioner's opinion, the degree of disability is not less than the relevant level.
(7) As soon as practicable after receiving a referral under subsection (5) the Director is to notify the employer in accordance with the regulations.
(8) If within 21 days after being notified under subsection (7) the employer notifies the Director in accordance with the regulations that the employer considers that the degree of disability is less than the relevant level, a dispute arises for the purposes of Part IIIA.
(9) The Director is to consider the dispute in consultation with the parties.
(10) Except in a case to which subsection (11) applies, if the dispute is not resolved by agreement the Director is to refer the question for resolution under the provisions of Part IIIA (other than Division 2).
(11) If the dispute relates to a disability mentioned in section 33, 34 or 35, the dispute is to be referred to a medical panel for determination as described in section 36 and so far as applicable this Act applies in relation to the reference as if it were a reference under section 36 except that the only question to be considered and determined on the reference is the question that was referred.
(12) Unless notification is given by the employer under subsection (8), the employer is to be regarded as having agreed that the degree of disability is not less than the relevant level."