The number of recovery auditor (RAC) denials for hospitals has increased 23 percent in the third quarter of 2012, according to the American Hospital Association's RACTrac survey. Medical necessity denials remained the leading reason for a RAC recoupment since the first quarter of 2010. Meanwhile, about 40 percent of all denials are appealed by hospitals, with a 74 percent success rate in getting the recoupments overturned during the process. --Read the full story at FierceHealthcare