HAP Radiology Billing and Coding Blog

Appropriate Use Criteria (AUC) Penalty Phase Set to Begin

Posted: By Sandy Coffta on April 29, 2022

Appropriate Use Criteria (AUC) Penalty Phase Set to BeginWill the requirement to use Clinical Decision Support (CDS) finally become a reality? The current timetable for the penalty phase of the AUC/CDS rule calls for it to begin on the later of January 1, 2023, or the January 1 following the end of the COVID-19 public health emergency (PHE). The PHE has just been extended another 90 days into July 2022, with no end in sight although there are some indications that it could end this year. One source reports that the Administration will give 60 days’ notice before ending the PHE. With this uncertainty, it would be wise for practices to be ready just in case!

Overview of the Mandate

Under this Medicare mandate, ordering physicians are required to consult appropriate use criteria via an approved qualified clinical decision support mechanism (CDSM) before ordering CT, MR, nuclear medicine, and PET exams for outpatients covered by Medicare Part B. If the consultation is not done, or if the proper result codes are not reported to Medicare by the radiologist, then payment to the radiologist will be denied.


The program was opened in 2020 and continues to be in an “educational and operations testing” phase. Once the penalty phase begins, rendering providers will not receive Medicare technical or professional component payment for the procedure without submitting a properly documented AUC consult. Our blog site contains numerous articles with details about the requirements.

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The Latest Information

The Medicare Physician Fee Schedule Final Rule for 2022 contained some new information about the AUC/CDS program:

  • When Medicare is the secondary payer, the claim will be exempt from penalty.
  • When an order needs to be modified at the time of service and the ordering physician cannot be reached to submit a new order, the AUC consultation information from the original order is to be included in the claim.
  • Services that are ordered prior to the beginning of the program but performed after the program begins will be exempt from penalty. A new modifier to be defined later will be used to designate such circumstances.
  • Professional Component (PC) claims for services provided in a facility where the institution is exempt from the AUC/CDS program will not be subject to penalty. The same new modifier will be used to designate such circumstances.
  • PC claims with the following Place of Service codes will be subject to AUC/CDS claims processing edits:
    • 11 (office)
    • 15 (mobile unit)
    • 19 (off-campus hospital outpatient)
    • 22 (on-campus hospital outpatient)
    • 23 (emergency room)
    • 24 (ambulatory surgery center)
  • Modifier QQ that was available during the current testing phase will be eliminated once the penalty phase begins. Modifier MH will also be eliminated and replaced by a new modifier yet to be defined to describe circumstances where the ordering physician was not required to consult AUC.

The remaining applicable modifiers will be:




A consultation is required and was performed

The order adheres to the criteria


Is required

The order does not adhere to the criteria


Is required

The order does not have any criteria in the CDSM


Is required




A consultation was not required due to



An emergency medical condition


Not required

Insufficient internet access


Not required

EHR or CDSM vendor issues


Not required

Extreme or uncontrollable circumstances


Not required

The Quandary of Interventional Radiologists

“Radiologists” are not considered to be authorized ordering physicians for the purpose of the AUC/CDS mandate. Medicare requires that the treating physician, not the imaging provider, must consult a qCDSM but there could be situations where the interventional radiologist is both the ordering and furnishing physician. According to information gathered by the Society of Interventional Radiology (SIR), the determining factor will be the role of the physician. When providing a therapeutic procedure, the interventional radiologist will be considered the treating physician and therefore may order a diagnostic procedure even if he or she is performing the diagnostic procedure.


The SIR recommends that to the extent that interventional radiologists also order diagnostic services, then it would be appropriate to notify them of their responsibility to consult a CDSM. They also note that many therapeutic procedures performed by interventional radiologists do not fall within the definition of the “advanced diagnostic imaging services” described above.

There is both Opposition and Support for AUC/CDS

Tom Greeson of ReedSmith reports that “A coalition of more than 30 medical societies is urging Congress to repeal the AUC program for advanced diagnostic imaging. However, the American College of Radiology (ACR) has been supportive of Medicare’s mandate. Greeson explains that “The genesis of ACR's support for AUC was grounded in the need to find an alternative to CMS requiring pre-authorization for all advanced imaging.” Their website provides tools and other resources that will help your practice get ready. The ACR Appropriateness Criteria® is one source that may be used for appropriateness criteria in a CDSM, and it was recently was updated with 5 new and 15 revised topics.

Contact HAP


Whether the penalty phase of the AUC/CDS mandate becomes effective in 2023 or later, practices that have not yet implemented the program in their practice should get started now. Selecting a system for your practice, and then educating ordering physicians about the need to use a CDSM, and training them to use it, will take time and effort. Subscribe to this blog to get the latest information you need on this topic and many others that will help your practice maintain compliance and maximize reimbursement.


Sandy Coffta is the Vice President of Client Services at Healthcare Administrative Partners.


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Topics: interventional radiology, clinical decision support, CDS, radiology, appropriate use criteria, AUC

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