Megan PriceReviewed on Trustpilot
★★★★★
My dental crown was denied twice because the x-rays were supposedly not enough. ClaimFighter helped me organize the dentist notes and CDT details into a letter that matched the denial.
CFClaimFighter
HIPAA-consciousUpload Your Denial Letter
★★★★★4.9 from 500+ reviewsHIPAA-conscious privacySecure upload
Generate an Insurance Denial Appeal Letter in Minutes
Upload your denial letter and get a clear appeal draft in minutes.
✓No login required
✓Private upload
✓Plain-English draft
✓Downloadable PDF
Appeal deadlines can be short. Start with your denial letter today.
✓HIPAA privacyHIPAA-conscious privacy practices
✓All 50 statesWorks across all 50 states
✓Under 10 minUnder 10 minutes average time
✓500+ drafts500+ appeal drafts created
✓4-step flow4-step guided process
We help with common insurance denials
Insurance Denial Help Center
Not sure what to do after a denial? Start with these simple guides and tools.
Insurance Appeal Letter Generator
Create a clear appeal draft from your denial letter.
Appeal Insurance Denial Without a Lawyer
Learn when you can start with a written appeal.
Insurance Company Denied My Claim
Review what to do after a claim denial.
How to Appeal Insurance Denial
Follow the main steps after an insurance denial.
Insurance Appeal Letter Example
See the structure of a simple appeal letter.
Insurance Appeal Letter Template
Use a template-style guide to organize details.
Claim Denied for Missing Information
Learn what to gather when your insurer says information is missing.
Medical Necessity Denial Appeal
Understand medical necessity denials and how to respond.
What to Do If Insurance Denies Your Claim
Read the core guide for next steps and appeal preparation.
How ClaimFighter works
1
Upload denial letter
Securely upload your denial letter or explanation of benefits.
2
We analyze your denial
The system reviews the denial reason and extracts key details.
3
Get your appeal draft
Receive a personalized appeal letter draft with supporting points.
4
Download & send
Download your PDF, review it, and send it to your insurer.
From denial letter to appeal draft.
Claim Fighter turns confusing insurance language into a clearer, structured appeal you can review before sending.
✓Clear appeal structure
✓Denial reason explained
✓Professional wording
✓Editable before sending
Review and edit your appeal before sending.
Simple, transparent pricing
Denial Review
$0
- ✓Upload your denial letter
- ✓Plain-English denial summary
- ✓Denial reason identified when visible
- ✓Recommended next steps
- ✓No login required
Appeal Letter + PDF
$9
Per appeal
- ✓Category-specific appeal draft
- ✓Works for all denial types
- ✓CPT/CDT code review when visible
- ✓Editable appeal letter draft
- ✓Downloadable PDF
- ✓Supporting documents checklist
- ✓Where to send your appeal guidance
One-time payment for the appeal draft. No subscription. No hidden fees.
Choose your denial category
Step 1: Choose the denial type that best matches your letter. After you choose one, the upload box will appear below.
Click one option below to continue. You only need to pick the closest match.
Upload box will appear here after you choose a denial type.
What people are saying
Real users. Real denials. Real approvals.
tmurphy_ohioReviewed on Reddit
Used it after my MRI prior auth got kicked back for conservative treatment. The draft called out my PT history without sounding like I was ranting at the insurance company.
Alicia MorganReviewed on Trustpilot
★★★★★
The medication appeal came out better than what I had started writing. It mentioned step therapy, failed alternatives, and my doctor's recommendation in one tight page.
healthadvocate22Reviewed on Reddit
I help my dad with paperwork and this saved me from staring at a hospital denial for three nights. The observation versus inpatient language was the part I needed.
Jordan HayesReviewed on Trustpilot
★★★★★
My son's therapy sessions were cut off after a visit limit review. The appeal draft stayed factual and pulled in progress notes instead of making big emotional claims.
lauren_in_azReviewed on Reddit
The surgery denial said there was not enough proof that other treatments had failed. I pasted the timeline in, and the letter gave my surgeon's office something useful.
Caleb TurnerReviewed on Trustpilot
★★★★★
I had a prior authorization mess for an infusion drug and the insurer kept asking for the same records. The generated appeal named the missing pieces and kept it short.
denialhelp_neededReviewed on Reddit
Not magic, but genuinely useful for turning a confusing ER bill denial into a readable appeal. I liked that it did not promise approval or sound like fake legal talk.
Megan PriceReviewed on Trustpilot
★★★★★
My dental crown was denied twice because the x-rays were supposedly not enough. ClaimFighter helped me organize the dentist notes and CDT details into a letter that matched the denial.
tmurphy_ohioReviewed on Reddit
Used it after my MRI prior auth got kicked back for conservative treatment. The draft called out my PT history without sounding like I was ranting at the insurance company.
Alicia MorganReviewed on Trustpilot
★★★★★
The medication appeal came out better than what I had started writing. It mentioned step therapy, failed alternatives, and my doctor's recommendation in one tight page.
healthadvocate22Reviewed on Reddit
I help my dad with paperwork and this saved me from staring at a hospital denial for three nights. The observation versus inpatient language was the part I needed.
Jordan HayesReviewed on Trustpilot
★★★★★
My son's therapy sessions were cut off after a visit limit review. The appeal draft stayed factual and pulled in progress notes instead of making big emotional claims.
lauren_in_azReviewed on Reddit
The surgery denial said there was not enough proof that other treatments had failed. I pasted the timeline in, and the letter gave my surgeon's office something useful.
Caleb TurnerReviewed on Trustpilot
★★★★★
I had a prior authorization mess for an infusion drug and the insurer kept asking for the same records. The generated appeal named the missing pieces and kept it short.
denialhelp_neededReviewed on Reddit
Not magic, but genuinely useful for turning a confusing ER bill denial into a readable appeal. I liked that it did not promise approval or sound like fake legal talk.
Renee CollinsReviewed on Trustpilot
★★★★★
My insurer denied a second MRI because they said the first scan was recent enough. ClaimFighter helped explain the new symptoms and why the doctor ordered another look.
claimsnerd84Reviewed on Reddit
I used it for a dental deep cleaning denial with missing periodontal charting. The output made it clear which pages to attach instead of sending a pile of random PDFs.
Patrick SloanReviewed on Trustpilot
★★★★★
A hospital claim was denied after an overnight stay, and I did not know how to describe the monitoring issue. The letter gave me wording that matched the discharge notes.
mri_questionsReviewed on Reddit
For an imaging denial, it pulled the denial reason into the first paragraph and kept the rest practical. I still edited it, but the blank page problem was gone.
Tasha ReynoldsReviewed on Trustpilot
★★★★★
The therapy appeal sounded like something a patient would actually send. It referenced treatment goals, session history, and plan language without getting dramatic.
rxappeal_jamesReviewed on Reddit
My migraine medication was denied after a formulary change. I entered the meds I had already tried, and the appeal finally made the sequence easy to follow.
Emily WatsonReviewed on Trustpilot
★★★★★
I needed a dental implant appeal that did not overstate anything. The draft focused on records, the treatment plan, and the dentist's notes.
priorauth_papertrailReviewed on Reddit
Prior auth denial for outpatient surgery had me stuck between the insurer and clinic. This helped me write one clean appeal instead of another angry portal message.
Renee CollinsReviewed on Trustpilot
★★★★★
My insurer denied a second MRI because they said the first scan was recent enough. ClaimFighter helped explain the new symptoms and why the doctor ordered another look.
claimsnerd84Reviewed on Reddit
I used it for a dental deep cleaning denial with missing periodontal charting. The output made it clear which pages to attach instead of sending a pile of random PDFs.
Patrick SloanReviewed on Trustpilot
★★★★★
A hospital claim was denied after an overnight stay, and I did not know how to describe the monitoring issue. The letter gave me wording that matched the discharge notes.
mri_questionsReviewed on Reddit
For an imaging denial, it pulled the denial reason into the first paragraph and kept the rest practical. I still edited it, but the blank page problem was gone.
Tasha ReynoldsReviewed on Trustpilot
★★★★★
The therapy appeal sounded like something a patient would actually send. It referenced treatment goals, session history, and plan language without getting dramatic.
rxappeal_jamesReviewed on Reddit
My migraine medication was denied after a formulary change. I entered the meds I had already tried, and the appeal finally made the sequence easy to follow.
Emily WatsonReviewed on Trustpilot
★★★★★
I needed a dental implant appeal that did not overstate anything. The draft focused on records, the treatment plan, and the dentist's notes.
priorauth_papertrailReviewed on Reddit
Prior auth denial for outpatient surgery had me stuck between the insurer and clinic. This helped me write one clean appeal instead of another angry portal message.
Insurance denial guides & resources
Learn what to include in your appeal letter and how to respond to common denial reasons.
ClaimFighter Guide
Denied Claim Next Steps
Insurance Denials
What To Do If Insurance Denies Your Claim
Learn what to check, what documents to gather, and how to create an appeal letter after an insurance claim denial.
7 min readRead guide
ClaimFighter Guide
Appeal Letter Guide
Appeal Letters
How To Write an Insurance Appeal Letter
A simple guide to writing an insurance appeal letter, including what to include and how to respond to the denial reason.
8 min readRead guide
ClaimFighter Guide
Medication Denial
Medication Denials
Insurance Denied Medication: What To Do
Learn what to check when insurance denies medication and how to prepare a prescription denial appeal letter.
7 min readRead guide
ClaimFighter Guide
Appeal Documents Checklist
Appeal Documents
What Documents To Include in an Insurance Appeal
Learn which documents may support an insurance appeal, including denial letters, provider notes, plan details, and medical records.
7 min readRead guide
Frequently asked questions
You choose the denial type, upload a JPG or PNG image of your denial letter, review the extracted details, and generate an editable appeal letter draft.
ClaimFighter is designed for privacy-conscious document handling. Your upload is used to analyze the denial and generate appeal support, and only the app systems needed to process the request should access it.
No. ClaimFighter is designed so you can start without creating an account.
Most users can complete the guided flow in under 10 minutes if they have a clear denial letter ready to upload.
No. ClaimFighter helps generate an appeal draft but does not guarantee approval.
You can use it for dental, mental health, therapy, medication, MRI or imaging, prior authorization, hospital stay, surgery, and general medical claim denials.
Ready to turn your denial letter into a clear appeal draft?
Upload your denial letter and get your appeal draft in minutes.
Upload Your Denial Letter
Secure. Private. HIPAA-conscious. No approval guarantees.