Where application of the s 3.3f(9) subtraction methodology of the AMA Guides would result in disregarding impairment attributable to the compensable injury (not just unrelated impairment), s 91(7)(c) of the Accident Compensation Act 1985 (Vic) excludes that methodology. Medical Panels must instead apply their collective knowledge and experience to evaluate the extent of unrelated impairment. The question whether a refusal of certiorari is an interlocutory or final order in Victoria remains unresolved pending determination by a court of five or the High Court.
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