This is a courtesy reminder that diagnostic imaging services requested on or after November 1, 2021, Anthem Blue Cross and Blue Shield’s Federal Employee Program (FEP) transitioned to AIM Specialty Health® (AIM). These services require prior authorization to determine medical necessity prior to rendering the service for Anthem’s federal employee members. 


Your practice can benefit from participation in several ways, including:


  • Improving the clinical appropriateness of imaging services through the application of evidence-based guidelines in an efficient and effective review process. Anthem’s Federal Employee Program will be utilizing the FEP Medical Policy to review for medical necessity. In the absence of a controlling FEP Medical Policy, medical necessity determinations will be made using Anthem Coverage Guidelines and/or AIM Clinical Guidelines. 


  • Maximizing a health plan’s network value through a wide range of solutions including provider assessment tools, cost and quality transparency and reporting.


  • Engaging consumers in understanding the range of choices they have in selecting imaging providers and increasing their ability to make informed decisions.


As of November 1, 2021, providers are required to contact AIM prior to rendering the service to obtain pre-service review for the following non-emergency modalities:


  • Nuclear imaging, including myocardial perfusion imaging, cardiac blood pool imaging, infarct imaging and positron emission tomography (PET) myocardial imaging

  • Computed tomography (CT), including CT angiography, derived fractional flow reserve, structural CT and quantitative evaluation of coronary calcification

  • Magnetic resonance imaging (MRI)

  • Magnetic resonance angiography (MRA)

  • Magnetic resonance spectroscopy (MRS)

  • Functional MRI (fMRI)

  • Stress echocardiography (SE)*

  • Resting echocardiography (TTE)*

  • Transesophageal echocardiography (TEE)*


How to submit a request for review


As a reminder, providers can submit requests for review or can verify order numbers using one of the following methods as a registered AIM portal provider:



  • Register by phone: Call AIM Specialty Health toll-free at 866-789-0397, Monday – Friday, 7 a.m. to 7 p.m. CT.


For more information about the Radiology Program and to help your practice get started, go to: website can also help you learn more about provider access to useful information and tools such as order entry checklists and clinical guidelines.


Anthem’s Federal Employee Program values your participation in our network, as well as the services you provide. We look forward to working with you to help improve the health of our members.



Featured In:
May 2022 Anthem Provider News - Virginia