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Minnesota Supreme Court Rules Employer May Assert Treatment Parameters Defense If It Is Not Denying Primary Liability For The Work Injury

On April 24, 2019 the Minnesota Supreme Court issued an important decision clarifying when an employer may assert a workers’ compensation medical treatment parameters defense to a claim for medical benefits. The Court concluded that once an employer admits primary liability for a work injury, it may assert the treatment parameters defense and claim the treatment is not reasonable and necessary even if it is denying some of the symptoms stemming from the original injury are causally related to that injury. Johnson v. Darchuks Fabrication, Inc., ___ N.W.2d ___ (Minn. 2019). 

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