In February 2020, Anthem Blue Cross notified providers in writing, effective for dates of service on and after May 17, 2020, updates will apply to the AIM Musculoskeletal Program: Joint Surgery Clinical Appropriateness Guidelines.  These updates relate to the criteria in the following sections:


  • Hip arthroplasty
  • Knee arthroscopy and open procedures
  • Shoulder arthroplasty including the removal of the  indication for subacromial impingement with rotator cuff tear  


  • Access AIM’s ProviderPortalSM directly at Online access is available 24/7 to process orders in real-time, and is the fastest and most convenient way to request authorization.
  • Access AIM via the Availity Web Portal at
  • Call the AIM Contact Center toll-free number: 1-877-291-0360, Monday – Friday, 7:00 a.m. – 5:00 p.m. PT.


For questions related to guidelines, please contact AIM via email at Additionally, you may access and download a copy of the current and upcoming guidelines here.

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May 2020 Anthem Blue Cross Provider News - California