Appeal letter template
An appeal letter for an insurance denial, a school decision or a fine: the decision, why it should be reconsidered, the evidence attached and what you ask for.
- ๐บ๐ธ US format ยท Letter size
- Free
Fill in what you need. The preview updates as you type.
What you type is not saved on our server.
A general template, not legal advice
This is a general template, not legal advice. Rules differ by state, so check anything with legal consequences with a professional before you rely on it.
1 / 1
Appeal Letter
Jordan Lee
123 Main St, Apt 4
Austin, TX 78701
(555) 010-0000, jordan.lee@example.com
Member ID NW-4471-2093
October 5, 2026
Appeals Department
Northwind Health Plan
PO Box 9000
Dallas, TX 75201
RE: Appeal of claim denial, claim number CLM-2026-088213
Dear Appeals Department:
I am writing to appeal the denial of my claim dated September 18, 2026 (CLM-2026-088213). I believe the claim was denied in error and I ask that it be reviewed again.
The denial letter says the MRI of my left knee on August 22, 2026 was not medically necessary. Dr. Taylor Kim ordered it after six weeks of physical therapy failed and an X-ray showed no fracture, which the plan's own imaging policy lists as a reason for an MRI. The MRI found a meniscus tear that is now being treated.
A letter from my treating physician explaining why the treatment was medically necessary is enclosed. The supporting documents are listed under Enclosures below.
I ask that you reverse the decision. I am filing this appeal within the 180-day window stated in the decision. Please confirm in writing that you have received this appeal and let me know if you need anything else from me.
Sincerely,
ย
ย
Jordan Lee
Enclosures: Denial letter dated September 18, 2026; Physical therapy notes, July 8 to August 19, 2026; X-ray report, July 30, 2026; MRI report, August 22, 2026
How to use it
Pick what you are appealing; the RE line and the first sentence change to match. Add the date of the decision and its reference number, then write why it should be reconsidered: quote the reason the decision letter gives, then answer it with facts and dates. List every document you are attaching, pick what you want (reversal, reconsideration or a hearing) and type the number of days the decision gives you to appeal so the letter states you are inside the window.
For a health plan appeal, turn on the physician toggle when your doctor has written a letter of medical necessity and attach it. Send the appeal the way the decision letter says (portal, fax or mail) and keep proof of the date.
Things to watch
The deadline matters more than the wording. Find it in the decision letter and send the appeal before it, even if you are still collecting documents; you can say more is coming. Keep the tone factual. Argue with the reason given, not with the person who signed it.
Calculators that go with this
Frequently asked questions
How long do I have to appeal a health insurance denial?
Under the Affordable Care Act most plans must give you at least 180 days from the denial notice for an internal appeal. The exact number is in your denial letter. If the internal appeal fails, you can usually ask for an external review by an independent reviewer.
Should I include my doctor's letter?
Yes, if the denial says the care was not medically necessary. A short letter from the treating physician that explains why the treatment was needed and cites the plan's own policy is the strongest attachment. Turn on the toggle so the appeal letter mentions it.
Can I use this for a parking ticket?
Yes. Pick the fine type, put the citation number in, and state the facts: the sign was missing, the meter was paid, the permit was displayed. Attach photos and the receipt. Many cities take appeals online; paste the same text there.
Is what I type saved anywhere?
No. Everything stays in your browser and nothing is sent to our server. If you refresh the page it is gone, so print, save a PDF or download the DOCX when you are done.