Official University Insurance Information - https://nessie.uihr.uillinois.edu/cf/benefits/index.cfm?Item_ID=55
Coverage Map: https://www2.illinois.gov/cms/benefits/stateemployee/documents/fy2018_state_map.pdf
Benefits Choice: FY 2018 - http://uofi.uillinois.edu/emailer/newsletter/128980.html
In the case of a difference between the NESSIE page and this page - the University NESSIE page is the official source
Summary Info: