Prefix on member ID cards will expand to include alpha-numeric combinations next year

As you’re probably aware, Blue Cross Blue Shield of Michigan-branded ID cards display a three-digit alpha prefix in the first three positions of the member’s ID number. However, with the ongoing development of new products and networks, the need for new prefixes for member ID cards is growing.

To accommodate this need, a combination of three-digit alpha-numeric prefixes will be issued as early as April 15, 2018. The numeric value may be assigned in any of the three positions of the prefix, but the prefix will never consist of all numbers. Members who currently have a three-digit alpha prefix on their member ID card will retain that three-digit alpha prefix and won’t be affected by this change.

In the future, you’ll see either a three-digit alpha prefix or a three-digit alpha numeric combination prefix on a member ID card.  As a result, all health care providers and billers must ensure that their systems are able to accept both alpha and numeric characters in the prefix field before April 15, 2018.

As you know, the member’s alpha prefix should always precede the member’s ID number on claims or correspondence you report to Blue Cross. The member’s alpha prefix and contract ID number are used to identify members and the plan they’re enrolled in. With the exception of dental or pharmacy, failure to include the prefix on your claim submission could result in misrouted claims and claim denials. Keep in mind that a member’s ID card isn’t a guarantee that their coverage is active or that a service is a benefit or a guarantee of payment for a claim.

If you have any questions or concerns, contact Provider Inquiry or talk with your provider consultant.