(November 5, 2019, 10:41 AM EST) -- CHICAGO — A health plan participant claims in an Oct. 31 class action complaint filed in Illinois federal court that a plan administrator breached its fiduciary duty under the Employee Retirement Income Security Act by using clinical coverage guidelines, provided by a company with which the plan administrator contracted, that are designed to result in the denial of claims for residential mental health treatment (Pamela Smith, et al. v. Health Care Service Corp., et al., No. 19-7162, N.D. Ill.)....