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Aetna external review program

Certain benefit plans may not be subject to the requirements of the Patient Protection and Affordable Care Act (ACA), such as Self funded Traditional grandfathered plans and exempt plans. These plans have the option of participating in Aetna's Company Sponsored External Review program.

Aetna has voluntarily implemented an external review program for these Self-funded traditional health plan sponsors who elect this program for their employees. Covered persons enrolled in a self-funded health plan should check their plan documents and contact their benefits administrator to find out if this program or any external review process is available to them.


What is the external review program?


The external review program offers members the opportunity to have certain coverage denials reviewed by independent physician reviewers. Once the applicable plan appeal process has been exhausted, eligible members may request external review if the coverage denial for which the member would be financially responsible involves more than $500 and is based on lack of medical necessity or on the experimental or investigational nature of the service or supply at issue.


If, upon the final level of review, the Plan upholds the coverage denial and it is determined that the member may be eligible for external review, he or she will be informed in writing of the steps necessary to request an external review, and a Request for External Review form will be included with the letter.


If coverage has been denied and the coverage denial letter indicates that the member is not eligible to request external review of the coverage denial, he or she should review the information below to determine if the coverage denial meets eligibility criteria to participate in this program.


  • The cost of the service or supply at issue for which the member would be financially responsible exceeds $500.
  • The applicable plan appeal process has been exhausted.

If the above eligibility criteria have been met and the applicable state external review process does not require otherwise, the member should print the Request for External Review form, follow the instructions provided on the form, and submit all information to Aetna's External Review Unit at the address listed on the form for processing.


A second form, Request for Expedited External Review form, is for use by the treating physician, if he or she certifies that a delay in service would jeopardize the member's health.

The Aetna External Review Unit will refer the request to an independent review organization (IRO) contracted with Aetna, and the IRO will choose an appropriate independent physician reviewer (or reviewers, if necessary or required by applicable law) to examine the case. The IRO is responsible for choosing a physician who is board certified in the area of medical specialty at issue in the case. The physician reviewer must take an evidence-based approach to reviewing the coverage determination, and must follow the plan sponsor's plan documents and applicable criteria governing the member's benefits.

After all necessary information is submitted. external reviews generally will be decided within 30 calendar days of the request. Expedited reviews are available when a member's physician certifies that a delay in service would jeopardize the member's health. Once the review is complete, the decision of the independent external reviewer will be binding on Aetna, the plan sponsor and the health plan. Members are not charged a professional fee for the review.

Members can call the Member Services toll-free number listed on their ID card or contact Aetna's National External Review Unit at 1-877-848-5855 ${tty} if they have any further questions regarding external review. Plan sponsors and producers; please contact your Aetna representative for additional information.


Please keep in mind that certain states mandate external review of other benefits or service issues or require a filing fee. In addition, certain states mandate the use of their own external reviewer. These state mandates may not apply to self-funded plans.


For further details regarding the external review program for a specific state, members may call the Member Services toll-free number listed on their ID card or contact Aetna's National External Review Unit at 1-877-848-5855 ${tty} If they do not have an ID card yet, please advise them to contact their employer's benefits office to obtain this toll-free number. They also may call their state insurance or health department for additional information regarding state-mandated external review procedures. Some states offer websites that provide information about, members' rights, among other things.


As noted above, when reviewing the information below, please understand that the external review process in some states, if applicable, may differ.


Connecticut External Review Guide (PDF)


Illinois External Review Guide (PDF)


Illinois Request for External Review Form (PDF)


Illinois Appointment of Authorized Representative Form (PDF)


Illinois Physician Certification Expedited Review Form (PDF)


Illinois Physician Certification Experimental/Investigational Review (PDF)

Legal notices

Aetna is the brand name used for products and services provided by one or more of the Aetna group of companies, including Aetna Life Insurance Company and its affiliates (Aetna).

Health benefits and health insurance plans contain exclusions and limitations.

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