Review of decision made in error – s 65 Accident Compensation Act 2001. Code of ACC Claimants' Rights jurisdiction – s 149(3) Accident Compensation Act 2001. Whether Court has jurisdiction to determine appeals from a complaint under the Code. Whether Corporation allowed to revise decision. No jurisdiction to hear appeal. Error not established where there is simply credible difference of expert opinion. Outcome: appeal dismissed and no issue as to costs.