A class action lawsuit alleged that computerized “Explanation of Benefits” (EOB) forms sent by Highmark to customers failed to provide adequate information as to why claims were rejected and how to appeal claim denials, in violation of the Employee Retirement Income Security Act (ERISA). Under the terms of a settlement, Highmark agreed to make significant changes in its EOB forms. The settlement also provided that class members who had certain claims denied between July 2003 and June 2006 would be able to request a review of those denials and, if successful, have the benefits paid by Highmark.