eviCore Preauthorization Program

Blue Cross and Blue Shield of Texas (BCBSTX) has contracted with eviCore healthcare (eviCore)* to provide certain utilization management preauthorization services. Services requiring preauthorization through eviCore are outlined below. eviCore is an independent company that provides specialty medical benefits management for BCBSTX.


In order to determine the services that require preauthorization/prior authorization (for medical necessity)** through eviCore for BCBSTX members/participants, refer to the Preauthorizations/Notifications/Referral Requirements Lists under Clinical Resources on the BCBSTX provider website.

As a reminder, it is always important to check eligibility through your preferred web vendor or by contacting customer service prior to rendering services. In addition, this step will help you determine if your services require preauthorization through BCBSTX or eviCore.

For more detailed information, including specific CPT codes that require eviCore preauthorization/prior authorization, refer to the eviCore implementation site Learn more about third-party links and select the BCBSTX health plan for the applicable CPT/HCPCS code lists and physician worksheets by service.

eviCore Contact Information

Preauthorization’s through eviCore can be obtained using one of the following methods:

  • The eviCore Healthcare Web Portal Learn more about third-party links is available 24x7. After a one-time registration, you can initiate a case, check status, review guidelines, view authorizations/eligibility and more. The Web Portal is the quickest, most efficient way to obtain information.
  • Providers can call toll-free at 855-252-1117 between 6 a.m. to 6 p.m. (central time) Monday through Friday and 9 a.m. - noon Saturday, Sunday and legal holidays.

Review the BCBSTX provider website and Blue Review for additional information on eviCore.

In addition, refer to the eviCore implementation site Learn more about third-party links or the BCBSTX Educational Webinar/Workshop Sessions section of the Provider Training website for upcoming trainings provided by eviCore and/or BCBSTX.

* eviCore is a trademark of eviCore healthcare, LLC, formerly known as CareCore, an independent company that provides utilization review for select health care services on behalf of BCBSTX.

** Preauthorization determines whether the proposed service or treatment meets the definition of medical necessity under the applicable benefit plan. Preauthorization of a service is not a guarantee of payment of benefits. Payment of benefits is subject to several factors, including, but not limited to, eligibility at the time of service, payment of premiums/contributions, amounts allowable for services, supporting medical documentation, and other terms, conditions, limitations, and exclusions set forth in the member’s policy certificate and/or benefits booklet and or summary plan description. Regardless of any preauthorization or benefit determination, the final decision regarding any treatment or service is between the patient and the health care provider.