Effective November 1, 2021, Anthem Blue Cross and Blue Shield (Anthem) will transition the clinical criteria for medical necessity review of Computed Tomography to detect Coronary Artery Calcification to AIM Imaging of the Heart Clinical Appropriateness Guideline. 


As part of this transition of clinical criteria, the following procedures will be subject to prior authorization at AIM:


CPT code



Computed tomography, heart, without contrast material, with quantitative evaluation of coronary artery calcium


Electron beam CT (also known as ultrafast CT, cine CT)

As a reminder, ordering and servicing providers may submit prior authorization requests to AIM in one of several ways:

  • Access AIM’s ProviderPortalSM directly at providerportal.com. 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 availity.com.
  • Call the AIM Contact Center toll-free number:  866-789-0397, Monday - Friday, 8 a.m. to 5 p.m. ET.


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




Featured In:
August 2021 Anthem Provider News - Virginia