Generate an Insurance Denial Appeal Letter in Minutes
Upload your denial letter and create an appeal draft for dental care, mental health treatment, therapy, medication, MRI, hospital stays, surgery, prior authorization, and general medical claim denials.
⏰ Appeal window is 30–60 days. Don't wait.
No legal jargon. No blank template. Just a clear appeal draft based on your denial.
★★★★★
"Got my MRI denial overturned in 8 days."
Michael T. · Florida
Average result
75%
of appeals succeed
★★★★★
"Finally something that fights back. My appeal PDF looked professional."
Sarah M. · Texas
Appeal Letters for Common Insurance Denials
Dental care
Create an appeal draft for denied dental procedures or care.
Mental health treatment
Respond to denials for behavioral health treatment or ongoing care.
Therapy
Draft appeals for therapy services that were denied or limited.
Medication
Appeal denied medications or pharmacy coverage decisions.
MRI / imaging
Create a draft for denied MRI, CT, or other imaging requests.
Prior authorization
Respond when a service was denied before treatment was approved.
Hospital stays
Prepare an appeal for denied inpatient or hospital stay coverage.
Surgery
Draft an appeal for a denied surgical procedure or request.
General medical claims
Use a broad appeal draft for other denied medical claims.
500+
appeals drafted
75%
approval rate
<10 min
average time
HIPAA
compliant
Denial letters are confusing on purpose. Your next step should not be.
What makes denial letters hard
- Medical and insurance jargon
- Short appeal deadlines
- No clear next step
- Stress when money is already involved
How ClaimFighter helps
- Explains the denial in simple words
- Helps organize appeal details
- Drafts a clean appeal letter
- Gives you a PDF you can download
How it works
Choose your letter type
Choose your letter type — mental health or dental
Upload a clear photo
Upload a clear JPG or PNG photo of your letter
Understand the denial
We explain the denial and build your draft
Review and download
Review, edit, and download your PDF
What Makes ClaimFighter Different
🧠 Parity-Aware Review
ClaimFighter looks for possible mental health parity concerns and helps you ask the insurer for a clearer explanation when the denial may need closer review.
🦷 Dental Appeal Support
ClaimFighter helps turn dental denial letters into clear appeal drafts with suggested supporting documents like x-rays, treatment notes, and dentist letters.
ClaimFighter is not a law firm, doctor, dentist, or insurance company. It helps you understand letters and prepare editable drafts.
Simple Pricing
Mental Health Appeal
$9
Per appeal
- ✓Mental health parity-aware review
- ✓Professional appeal letter draft
- ✓Print-ready PDF download
- ✓Where to send your appeal
- ✓Supporting documents checklist
Dental Appeal
$14
Per appeal
- ✓CDT code review when visible
- ✓Dental necessity language included
- ✓Professional appeal letter draft
- ✓Print-ready PDF download
- ✓Where to send your appeal
- ✓Evidence checklist for x-rays, records, and dentist notes
One payment per appeal. No subscription. No hidden fees.
Choose your denial category
Select the type of claim denial first. Then upload your letter.
Sample ClaimFighter output
See the denial in plain English
Denial letter says
Your claim was denied because the treatment was considered not medically necessary under your current plan.
Plain English explanation
The insurer is saying they do not believe this treatment was required. Your appeal should explain why your doctor recommended it and include supporting medical details.
What you get
What people are saying
Real users. Real denials. Real approvals.
★★★★★
"I had no idea where to start. ClaimFighter explained everything in plain English and my claim got approved within 2 weeks."
Sarah M.
Texas
★★★★★
"The appeal window was closing and I was panicking. Done in under 10 minutes. Highly recommend."
James R.
Ohio
★★★★★
"Professional PDF, simple process. Finally something that fights back against confusing insurance letters."
Linda K.
California
★★★★★
"My insurer denied my MRI. ClaimFighter drafted a letter citing medical necessity and it got overturned."
Michael T.
Florida
★★★★★
"I was so stressed. This tool made the whole thing manageable. Got my appeal approved in 3 weeks."
Angela B.
New York
★★★★★
"Clear, fast, and the letter looked like it was written by a professional. Saved me hours."
David H.
Georgia
★★★★★
"Used it for a prescription denial. The appeal letter was spot on and my pharmacy coverage was reinstated."
Patricia W.
Illinois
★★★★★
"Simple upload, clear explanation, done. I wish I had found this sooner."
Robert S.
Pennsylvania
★★★★★
"I've been fighting my insurer for months. This got me further in 10 minutes than I had in 3 months alone."
Jennifer L.
Arizona
★★★★★
"The before and after explanation was eye-opening. Now I actually understand what they were saying."
Kevin M.
North Carolina
★★★★★
"Used it twice now. Both times the letter was professional and well-structured. Love this tool."
Maria G.
Colorado
★★★★★
"First time appealing anything. The step-by-step process made it so easy."
Daniel F.
Michigan
★★★★★
"Got a denial for physical therapy. ClaimFighter drafted an appeal referencing my doctor's notes. Approved."
Susan C.
Washington
★★★★★
"My wife used this for her cancer treatment denial. The letter it produced was detailed and serious. Appeal won."
Christopher A.
Tennessee
★★★★★
"Fast, private, and the PDF was clean. Exactly what I needed."
Karen N.
Virginia
★★★★★
"Didn't need a lawyer. Didn't need to make a single phone call. Just uploaded and downloaded."
Brian P.
Massachusetts
★★★★★
"Insurance jargon always confused me. ClaimFighter translated it into something I could actually respond to."
Lisa R.
Minnesota
★★★★★
"Used it for a denied specialist referral. Letter was approved within 10 days."
Mark T.
Wisconsin
★★★★★
"So relieved this exists. Straightforward and the output was impressive."
Nancy H.
Missouri
★★★★★
"My employer's insurer denied a sleep study. The appeal letter ClaimFighter generated was thorough and cited policy language."
Steven D.
Indiana
★★★★★
"Three stars for the waiting, five stars for the result. Appeal approved!"
Amanda J.
Oregon
★★★★★
"Exactly what the description says. Plain English. Clean draft. Done."
Paul W.
Nevada
★★★★★
"I used this after my second denial. Finally got approved on the third attempt. The letter made all the difference."
Melissa B.
Oklahoma
★★★★★
"Dental claim denial — ClaimFighter handled it perfectly. The appeal was crystal clear."
Timothy K.
Kentucky
★★★★★
"This should be mandatory knowledge for every American dealing with health insurance."
Donna S.
Iowa
★★★★★
"Used it for my son's therapy sessions denial. Appeal letter was detailed and compassionate. Got approved."
Joseph M.
Arkansas
★★★★★
"Did everything on my phone. The mobile experience was smooth and the PDF downloaded perfectly."
Sandra L.
Utah
★★★★★
"No confusing legal language. No stress. Just a clean letter I could actually send."
Charles R.
Mississippi
★★★★★
"My insurer denied a surgery pre-auth. ClaimFighter's letter cited three clinical guidelines. Overturned."
Jessica T.
Alabama
★★★★★
"Quick, free to try, and the output quality was genuinely surprising."
Ryan N.
South Carolina
★★★★★
"I'm 67 and not very tech-savvy. This was the easiest tool I've used in years."
Dorothy P.
Louisiana
★★★★★
"Saved me from hiring a patient advocate. The letter was that good."
Andrew C.
New Mexico
★★★★★
"Five stars. Used it for a mental health claim denial. Appeal approved in 8 days."
Stephanie H.
Connecticut
Built for real denial situations
Medical necessity denial
Helps turn confusing denial language into a clear appeal direction.
Out-of-network issue
Explains what the insurer is objecting to and what details may help your response.
Missing information
Helps identify what may be missing so you can respond with a cleaner letter.
Built to keep you in control
You review everything
You can edit details before creating your appeal draft.
No approval promises
We help you prepare. We do not guarantee claim approval.
Clear language
We avoid confusing insurance wording whenever possible.
Practical next step
You leave with a clean draft you can review and use.
From confusing letter to clear next step
Insurance letter says:
Service denied because it was not considered medically necessary under your plan.
ClaimFighter explains:
Your insurer says they do not think this treatment was medically necessary. You may be able to appeal by explaining why your provider recommended it.
FAQ
No. ClaimFighter is an informational tool that helps you understand denial letters and draft appeal letters. It does not provide legal, medical, or insurance advice.
Not always. Many people start by filing an internal appeal themselves. For complex cases, you should contact a licensed attorney, patient advocate, healthcare provider, or insurance professional.
For this MVP, upload a clear JPG or PNG photo of your insurance denial letter.
No. ClaimFighter does not guarantee approval. It helps you prepare a clearer appeal draft.
Your denial letter is used only to analyze the document and generate your appeal content. ClaimFighter does not use your upload to train AI models. Your file may be temporarily processed through secure third-party services used by the app, such as document storage and AI analysis. Only the app system needs access to process your request.
For the MVP, files are kept only as long as needed for processing unless longer storage is required by the technical system. Before public launch, ClaimFighter should use automatic deletion after processing. Do not upload documents you are not comfortable processing online.
Ready to review your denial letter?
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