Health Insurance · External Review
CT
External Review in Connecticut
My insurer refuses to cover my prescribed treatment. What can I do?

Frequently asked questions
1.How do I request an internal appeal?
If your insurer denies your claim, you have the right to an internal appeal.[^1] This means you can ask your insurer to conduct a full and fair review of its decision. To appeal the denial, you should do the following:
- Review the determination letter. Your insurer should have sent you a determination letter to tell you that it would not cover your claim. Review this document so you can understand why your insurer denied your claim and how you can appeal the denial.
- Collect information. In addition to the determination letter, collect all of the documents that your insurer sent to you, including your insurance policy and your insurer’s medical necessity criteria. “Medical necessity criteria” refers to your insurer’s policy for determining whether a treatment or service is necessary for your condition.[^2]
- **Request documents. **If your insurer did not send you the determination letter, your policy, the medical necessity criteria, or instructions and forms for filing an appeal, call your insurer and request these documents.
- **Call your **health care provider’s office. Contact your health care provider’s office to ask for help with the appeals process. Someone in his or her office might help you fill out the forms to request an appeal and draft a strong appeal letter.
- Submit the appeal request. You or someone in your health care provider’s office should submit the appeal forms along with the letter from your health care provider and any additional information that your insurer requested. Be sure to follow your insurer’s instructions closely and make a copy for your own records of all documents you or your health care provider submitted to the insurer.
- Follow up. Follow up with your insurer regularly until you hear back. Be sure to keep a record of the name of any representative you speak with about the appeal, the date and time you spoke with that person, a confirmation number for the call, and a summary of your discussion.
2.How long will the external review process take?
The length of time for an external review process varies based on the services or treatment you requested and whether you request an expedited external review. External Review
- Standard treatment: No more than 45 days.
- Experimental or investigational treatment: No more than 20 days.[^14]
Expedited External Review
- Standard treatment: No more than 72 hours;
- Experimental or investigational treatment: No more than four days;
- Specific behavioral health services (automatically expedited): No more than 24 hours.[^15]
3.How do I file a complaint?
If you are a Connecticut resident and your insurer denies your coverage after the external review process, you can file a complaint with the Connecticut Department of Insurance (“Department”). Your complaint should include the following information:
- The name, address, email address, and telephone number of the person filing the complaint (e., complainant);
- The name of the insured individual, if different from the complainant;
- The names of any other parties involved (for example, the plan administrator);
- The name of insurance company and the type of insurance;
- Claim information, including the policy number, certificate number, and claim number, date of denial, and amount in dispute;
- The reason for and details of the complaint; and
- What you consider to be a fair resolution.[^16]
You can submit the following supporting documentation with your complaint:
- Medical bills;
- Contracts; and
- Correspondence between you and your insurer.[^17]
You can submit your complaint online here. If you submit an online complaint, you should scan the supporting documents and attach them to your complaint.[^18]Alternatively, you can print a copy of the complaint found here and mail it along with the supporting documents to: Connecticut Insurance Department Attn: Consumer Affairs Division P.O. Box 816 Hartford, CT 06142-0816[^19]
4.What happens after the Department receives my complaint?
The Department will assign an analyst to review your complaint.[^20] You will receive acknowledgment of receipt of the complaint and a copy will be sent to your health insurer for a response.[^21] Once the response is received, the analyst will determine how to resolve the complaint.[^22] Upon investigation, the Department will either require the insurance company to cover the claim or deny the claim.
5.Who should I call if I have any questions about filing a complaint?
You can contact the Connecticut Consumer Affairs Division helpline at (860) 297-3900 or (800) 203-3447. The Department is open from 8:00 a.m. to 4:30 p.m. Monday through Friday.
6.What if I can’t wait for an internal appeal because my situation is urgent?
The internal appeals process should take a maximum of 30 days if you have not yet received the requested service or treatment and a maximum of 60 days if you have received the service or treatment but are waiting for reimbursement.[^3] You can skip the internal appeals process and request an expedited external review in urgent situations or if the denial of services relates to a mental health or substance use disorder.[^4] Your situation is urgent if waiting 30 to 60 days would seriously jeopardize your life or your ability to regain function.
7.How do I request an external review?
If your insurer still denies you coverage after you requested an internal appeal or if your situation is urgent, you can request an external review of the insurer’s decision.[^5] During an external review, an independent third party reviews your insurer’s decision.[^6] In Connecticut, you may only obtain an external review if your plan was supposed to cover your treatment, but your insurer denied your claim for one of the following reasons:
- The requested treatment was not medically necessary;
- The treatment was experimental or investigational;
- You are not eligible for the treatment or medication; or
- Your insurer rescinded your policy.[^7]
If you meet these criteria, you can obtain a standard external review or an expedited external review by taking the following steps: **Prepare application. **Prepare the following materials:
- The external review request form (click here);
- A copy of your medical insurance identification card;
- A copy of the final denial letter from your insurance company;
- A letter of support, treatment notes, and test results from your health care provider;
- Your personal description of the issue;
- Any current medical literature or studies showing the effectiveness of the treatment you are requesting, if such treatment has been denied as experimental/investigational;
- Any medical documents not previously submitted to your insurance company; and
- The $25 filing fee (payable by check or money order) or a request for a waiver of the filing fee, which will be included in the external review packet.[^8]
**Ask for certification for expedited external reviews. **If you are requesting an expedited external review, in addition to the materials above, you should also ask your health care provider to complete the Physician Certification Form (click here), and you should submit that form with your request.[^9] If the services relate to a mental health disorder or substance use disorder, an expedited external review will automatically be granted and the Physician Certification Form is not required to be submitted.[^10] **Submit your request. **Mail your application materials to: Connecticut Insurance Department Attn: External Review P.O. Box 816 Hartford, CT 06142-0816[^11] You should mail your request for an expedited review and supplemental documents overnight to: Connecticut Insurance Department Attn: External Review 153 Market Street, 7th Floor Hartford, CT 06103[^12] You must request an external review within 120 days of receiving the last decision letter from your insurer.[^13] Be sure to make a copy of all documentation for your own personal records.