Court of Appeals Concludes Commissioner Did Not Improperly Use Agency Discretion in Determining Impairment Rating for Distal Clavicle Excision
Klein v. Whirlpool Corp. , No. 25-0458 (Iowa App. Jan. 7, 2026) The fighting issue in this case is whether a distal clavicle excision is to be rated in full or to be reduced based on a modifier. In the case, claimant's IME doctor concluded the modifier did not apply under the Guides. Defendant's doctor did not rate the distal clavicle excision at all, rating the shoulder only on the basis of loss of motion. The agency concluded that in an earlier decision (Jay v. Archer Skid Loader Service), the modifier had been used even though no doctor had used this. In that case, according to Jay, it was the agency's duty to calculate ratings in accordance with the AMA Guidelines. In this case, the commissioner found that the agency must determine whether the rating was in compliance with the AMA Guides. The District Court affirmed the decision of the agency, finding that the agency's interpretation of the Guides did not qualify as prohibited usage of agen...