Romi Care

External review request letter for a health plan denial

Updated October 1, 2026 · How we write our guides

When to use it

Use this letter to ask an independent reviewer to look at your health plan's final denial. You have 4 months from the final denial to ask. A standard review takes up to 45 days, and an urgent one up to 72 hours. If the reviewer sides with you, your plan must accept the decision.

Your plan turned down your internal appeal. You can often take your case to an independent review organization next. It isn't part of your plan, and your plan must accept its decision. Our guide to external review for health insurance explains how the steps fit together.

When to use this letter

Use it after your plan's final denial, when the denial involves medical judgment. That includes:

  • Whether the care was medically necessary
  • The level of care or the setting, like inpatient or outpatient
  • Whether a treatment is experimental or investigational
  • A plan cancelling your coverage because it says your application was wrong or incomplete

You usually finish the internal appeal first. Our insurance appeal letter covers that step. In urgent situations, you can file both at the same time.

Medicare, Medicare Advantage, and Medicaid use their own appeal systems. If you have 1 of those, follow the steps on your notice. Our guide on how to appeal an insurance denial explains the differences.

Check your deadline and where to send it

You have 4 months from the date you get the final denial. Our appeal deadline calculator can help you count.

Your final denial letter or explanation of benefits (EOB) gives the contact for your review. It may be your plan, your state, or the federal process. Some processes have their own form. If yours does, fill it out and attach this letter.

What to fill in

  • Review contact and address: copy them from your final denial letter.
  • Denial reason: use the words from the final denial.
  • New evidence: list anything your plan didn't see, like a new letter from your doctor. If there's nothing new, write "None."
  • The urgent paragraph: keep it only if your doctor believes waiting could seriously harm your health. If not, delete the paragraph that starts "Urgent request."
Fill in your details

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Your letter

[YOUR NAME] [YOUR ADDRESS] [CITY, STATE ZIP] [YOUR PHONE] [YOUR EMAIL] [TODAY'S DATE] [REVIEW CONTACT FROM YOUR FINAL DENIAL LETTER] [REVIEW ADDRESS] Re: Request for external review Patient: [PATIENT NAME] Health plan: [PLAN NAME] Member ID: [MEMBER ID] Claim or reference number: [CLAIM NUMBER] Date of final denial: [DATE OF FINAL DENIAL] To the external review team: I am asking for an external review of [PLAN NAME]'s decision to deny coverage for [SERVICE DENIED]. I received the plan's final denial on [DATE OF FINAL DENIAL]. This request is within 4 months of that date. The plan's reason for the denial was: [DENIAL REASON FROM YOUR FINAL DENIAL] I disagree because: [WHY YOU DISAGREE, IN 1 TO 3 SENTENCES] New information the plan did not have: [NEW EVIDENCE, OR NONE] Urgent request: My doctor, [DOCTOR NAME], believes that waiting for a standard review could seriously harm my health. I ask for an expedited review. My doctor's statement is enclosed. I have enclosed: - A copy of the plan's final denial - A copy of my internal appeal - A letter from [DOCTOR NAME] - [OTHER RECORDS YOU ARE SENDING] Please consider all of the enclosed documents in your review. Please send your decision in writing to me at the address above. You can reach me at [YOUR PHONE] with any questions. Sincerely, [YOUR NAME]

Highlighted words are blanks you haven't filled in yet.

What to attach

Send copies, not originals. Include:

  • The final denial letter
  • Your internal appeal and anything you sent with it
  • A letter from your doctor that answers the denial reason
  • Any new records, like test results or notes

How to send it

Use the method your final denial letter gives. The federal process takes requests online, by fax, or by mail, and HealthCare.gov lists the details.

  • By mail: use certified mail with a return receipt, so you have proof of the date.
  • Online or by fax: save the confirmation page or fax receipt.
  • Either way: keep a copy of everything you send.

Tell the provider's billing office you've asked for an external review. Ask them to hold the bill while you wait, and note the date and the person's name.

What happens next

A standard external review is decided within 45 days after the request is received. An expedited review is decided within 72 hours or sooner, depending on how urgent your case is.

If the reviewer sides with you, your plan must accept the decision. Check your next explanation of benefits and bill to make sure the claim was paid. If you were denied care before you got it, see what to do when prior authorization is denied.

Common questions

How long do I have to ask for an external review?

You have 4 months from the date you get your plan's final denial. That's usually the decision on your internal appeal. Count from the day the notice reached you, and send your request well before the deadline. Your final denial letter or explanation of benefits should say where to send it.

Does an external review cost anything?

In the federal process run by the U.S. Department of Health and Human Services, there's no charge. If your plan uses a state process or contracts with a review organization, you may be charged. That fee can't be more than $25 per review. Your final denial letter should tell you which process applies.

Can I ask for an external review before my internal appeal is done?

In urgent situations, yes. You can file an internal appeal and an external review request at the same time. An expedited external review is decided within 72 hours or sooner, depending on how urgent your case is. Ask your doctor to explain in writing why waiting could harm your health.

What if the reviewer agrees with my plan?

Read the decision letter closely, and keep it with your other records. You may still have other options, depending on your coverage. For employer plans, the Department of Labor's Employee Benefits Security Administration can explain them. For other plans, try your state insurance department or consumer assistance program. An attorney can tell you about legal options.

Sources

  1. External review, HealthCare.gov. Accessed October 1, 2026.
  2. Internal appeals, HealthCare.gov. Accessed October 1, 2026.
  3. Filing a claim for your health benefits, U.S. Department of Labor, Employee Benefits Security Administration. Accessed October 1, 2026.

This is general information, not legal or medical advice. Rules can depend on your plan and your state. Romi Care isn't an insurer, law firm, collection agency, or government program.