Under s133(3) of the Motor Accidents Compensation Act 1999, psychiatric/psychological injury impairment cannot be aggregated with physical injury impairment to exceed the 10% threshold for non-economic loss under s131. However, if either category of impairment independently exceeds the threshold, the other may be taken into account in quantifying non-economic loss damages. The question of aggregation for quantification purposes once the threshold is independently met was left open as obiter.
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