Blue CORE Overview

Blue CORE is BlueCross BlueShield of Tennessee's real-time based eligibility, benefits and claim status application. Blue CORE follows the standard operating rules defined by Phase I, II and III of the CAQH CORE® requirements. For further information on how use the new Blue CORE application, please see the attached Companion Guides.

Blue CORE 270 / 271 companion guide

Blue CORE 276 / 277 companion guide

Blue CORE 835 companion guide

Holiday Schedule

Blue CORE will not be available on the following Holidays

  • New Year's Day
  • Martin Luther King Day
  • Memorial Day
  • Independence Day
  • Labor Day
  • Thanksgiving
  • Christmas

Regular Scheduled Maintenance

Blue CORE may not be available due to regular system maintenance during the following times:

  • Every Tuesday 7:00 PM - 10:00 PM
  • Every Sunday

Unscheduled Maintenance or Emergency Downtime

None at this time.

For further information about CORE, please visit or contact CAQH at