TRICARE, the military’s managed healthcare system, is taking a step forward in letting its beneficiaries see their own health records online. The agency’s “Blue Button” tool is getting an upgrade that now lets users see their lab results, patient history and diagnoses. The site already gave TRICARE users the ability to view their own allergy and medication profiles. TRICARE says they developed the system as a partnership with the Department of Veterans Affairs and the Centers for Medicare and Medicaid Services. The system already has more than 250,000 users.