Diana Foster v. Texas Retirement System, Trustee for Texas Public Retired School Employees Group Insurance Program Aetna Life Insurance Company And Aetna Health Management, LLC
Diana Foster, a retired teacher, sued the Teacher Retirement System of Texas (TRS) and its insurance administrators, Aetna, after her claim for intravenous immune globulin infusion therapy (IVIG) was denied. She asserted claims for breach of contract, breach of the duty of good faith and fair dealing, violations of the insurance code, and deceptive trade practices, along with a request for declaratory judgment. The trial court granted appellees' pleas to the jurisdiction, dismissing the lawsuit without prejudice, citing sovereign immunity. Foster appealed, arguing her declaratory judgment claim was not barred, legislative immunity was waived, the administrative procedures act provided for judicial review, and Aetna was not protected by sovereign immunity. The appellate court affirmed the trial court's dismissal, finding that sovereign immunity applied to TRS and, by extension, to Aetna as its agent, and that Foster's claims did not fall under any exceptions for judicial review or waiver of immunity.