As part of Blue Cross Blue Shield of Michigan’s utilization management efforts, we’re moving from the pre-notification system to e-referral, starting July 31, 2017. If you’ve been using the pre-notification system for services requiring authorization (also called prior authorization or preauthorization), you’ll be switching to e-referral. Blue Care Network has been using e-referral for the past several years. If you’re not an e-referral user already, you can sign up on the Sign Up or Change a User page on the ereferrals.bcbsm.com website. The page contains information providers need to sign up for access to the e-referral system.