How to Overturn a Denied Insurance Claim

Table of Contents

• Understanding Why Your Insurance Claim Was Denied
• Know Your Right to Appeal a Denied Claim
• Gather Medical Records and Supporting Evidence
• Creating an Insurance Claim Appeal Letter Template
• File Your Internal Appeal Within the Deadline
• Request an External Review if Internal Appeal Fails
• How to Hire a Public Adjuster for Claim Disputes
• File a Complaint with the State Insurance Commissioner
• What to Do if Your Appeal Is Still Denied
• Frequently Asked Questions

Last Updated: September 27, 2026

Understanding Why Your Insurance Claim Was Denied

Insurance companies deny claims for specific reasons. Understanding the denial reason is your first step toward learning how to overturn denied insurance claim decisions. Each reason requires a different appeal strategy.

Common Denial Reasons:

• Not medically necessary – The insurer claims the service wasn’t required for your condition
• Out-of-network provider – You used a doctor or facility not in their network
• Prior authorization missing – You didn’t get approval before treatment
• Exceeds policy limits – The claim amount surpasses your coverage
• Exclusion in policy – Your policy specifically excludes the service
• Insufficient documentation – Medical records don’t support the claim
• Lapsed coverage – Your policy wasn’t active when you received care

Your denial letter must state the specific reason. Read it carefully. The reason determines your appeal strategy.

Why “Not Medically Necessary” Denials Are the Hardest to Fight, and How to Win

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When an insurer denies a claim as “not medically necessary,” they are claiming that:

• The treatment was not appropriate for your diagnosis
• An alternative, less expensive treatment should have been used instead
• The condition did not warrant the level of care you received
• The treatment did not meet their medical policy guidelines

Checklist: How to Counter a “Not Medically Necessary” Denial

□ Obtain your physician’s written statement of medical necessity

• Ask your doctor to write a letter (not just a note) explaining why the treatment was medically necessary
• The letter must reference your specific symptoms, test results, and diagnosis
• It should cite clinical guidelines or peer-reviewed studies supporting the treatment
• Example language: “Based on [PATIENT NAME]’s diagnosis of [CONDITION] and presentation of [SYMPTOMS], [TREATMENT] was the appropriate and necessary treatment according to [CLINICAL GUIDELINE/STANDARD OF CARE].”
• Request this letter immediately; don’t wait until after you’ve filed your appeal

Red Flags in “Not Medically Necessary” Denials:

Know Your Right to Appeal a Denied Claim

You have the legal right to challenge a denied claim. This right is protected by federal regulations and state insurance law.

Your insurance policy includes an appeals process. Most policies give you between 30 and 180 days to file an appeal, depending on your state and policy type. The denial letter states your exact deadline.

Two types of reviews exist:

• Internal appeal, The same insurance company reviews the denial
• External review, An independent third party reviews the decision

You can request an internal appeal first. If that fails, you can request an external review. Some states allow you to skip the internal appeal and go straight to external review for urgent situations.

The appeals process is your legal right. Use it. Insurance companies expect appeals and budget for them.

Gather Medical Records and Supporting Evidence

Your appeal lives or dies on evidence. The insurance company denied your claim because they say the documentation doesn’t support it. You must prove them wrong.

Request these documents:

Organize everything chronologically. Create a folder with numbered documents. This makes your appeal easier to follow and shows the insurance company you’re serious.

If records are missing, request them immediately. Don’t wait. The clock is running.

Creating an Insurance Claim Appeal Letter Template

Your appeal letter is your voice to the insurance company. It must be clear, professional, and persuasive.

[YOUR NAME]
[YOUR ADDRESS]
[YOUR PHONE NUMBER]
[YOUR EMAIL]

[DATE]

[INSURANCE COMPANY NAME]
Claims Appeals Department
[APPEALS ADDRESS FROM DENIAL LETTER]

RE: Appeal of Denied Claim – Claim #[YOUR CLAIM NUMBER] – Policy #[YOUR POLICY NUMBER]

Dear [CLAIMS MANAGER NAME OR “Appeals Department”]:

I am writing to formally appeal the denial of my insurance claim dated [DATE OF DENIAL LETTER] for [SPECIFIC SERVICE/TREATMENT]. My claim number is [CLAIM NUMBER], and my policy number is [POLICY NUMBER]. I believe this denial was made in error and respectfully request that you reverse this decision and process my claim for payment.

Reason for Denial and My Response

Your denial letter states that my claim was denied because [EXACT REASON FROM DENIAL LETTER]. I respectfully disagree with this determination for the following reasons:

[INSERT YOUR RESPONSE HERE. Example: “The service was medically necessary because I was experiencing [SYMPTOMS], and my physician determined that [TREATMENT] was the appropriate course of action based on clinical guidelines and my medical history.”]

Medical Necessity and Clinical Support

On [DATE], I experienced [SPECIFIC DAMAGE EVENT] at [PROPERTY ADDRESS]. This damage requires [REPAIR/REPLACEMENT] because:

• My property sustained [SPECIFIC DAMAGES]
• The damage assessment, attached as Exhibit A, documents that [SPECIFIC DAMAGE FINDING]
• [REPAIR ESTIMATES/PHOTOS/INSPECTION REPORTS], attached as Exhibit B, supports the extent of damage to [PROPERTY AREA]
• Industry standards, including [STANDARD NAME/REFERENCE], recommend [REPAIR/REPLACEMENT] for properties with [TYPE OF DAMAGE]

Expert assessment determined that [REPAIR/REPLACEMENT] was the most appropriate and effective solution to restore my property to its pre-loss condition.

Supporting Documentation

I have attached the following evidence to support my appeal:

• Exhibit A: Detailed damage assessment report from [DATE RANGE]
• Exhibit B: Public Adjuster’s report/estimate dated [DATE]
• Exhibit C: Relevant building codes or industry standards supporting [REPAIR/REPLACEMENT]
• Exhibit D: Photos and videos of damage from [DATES]
• Exhibit E: Prior repair history showing [RELEVANT PROGRESSION]

These documents demonstrate that [SERVICE/TREATMENT] was medically necessary, appropriate, and consistent with standard medical practice.

Request for Reversal

Based on the evidence provided and the medical necessity of the treatment I received, I respectfully request that you:

1. Reverse your denial decision
2. Approve my claim in full
3. Process payment to [CONTRACTOR NAME] or reimburse me directly
4. Provide written confirmation of your decision within 30 days

I am available to discuss this appeal at your convenience. Please contact me at [YOUR PHONE NUMBER] or [YOUR EMAIL] if you require any additional information.

Thank you for your prompt attention to this matter. I look forward to your response.

Sincerely,

[YOUR SIGNATURE]
[YOUR TYPED NAME]

How to Use This Template:

1. Copy the entire template into a Word document or Google Doc
2. Replace all bracketed sections [LIKE THIS] with your specific information from your denial letter and medical records
3. Keep it to one page if possible; if you need a second page, that’s acceptable
4. Attach supporting documents in the order you reference them (Exhibit A, B, C, etc.)
5. Print and sign the letter, or use an electronic signature
6. Send via certified mail with return receipt requested to the address on your denial letter
7. Keep a copy for your records

Common Mistakes to Avoid:

• Don’t be emotional or accusatory. Stick to facts and medical evidence. Phrases like “This is unfair” or “Your company is denying me care” weaken your case. Insurance companies respond to clinical evidence, not emotion.
• Don’t exceed one page. Insurance appeals reviewers read hundreds of letters. Concise and clear wins over lengthy and detailed.
• Don’t repeat information. Each paragraph should add new information or evidence. Repetition makes your letter weaker, not stronger.
• Don’t forget to sign and date. An unsigned letter may not be processed.
• Don’t send via regular mail. Certified mail with return receipt is your proof they received it. This matters if you need to escalate to external review or file a complaint.

File Your Internal Appeal Within the Deadline

The internal appeal goes back to the insurance company’s appeals department. They review the denial using the evidence you provide.

Your deadline matters. Missing it means losing your right to appeal. Check your denial letter for the exact deadline in your state.

The process typically works like this:

1. Submit your appeal letter and supporting documents
2. The insurance company assigns an appeals reviewer
3. The reviewer examines your evidence and the original denial
4. They issue a decision within 30-60 days
5. You receive a written decision letter

Some claims qualify for expedited review. If your condition is urgent, request expedited review. The insurance company must respond faster for urgent cases.

During the internal appeal, the insurance company may request additional information. Respond quickly. Delays hurt your case.

Document everything. Keep copies of every document you submit. Record the date you submitted it and the name of the person who received it.

Request an External Review if Internal Appeal Fails

If the insurance company upholds the denial, you can request an external review. An independent reviewer, not employed by the insurance company, will examine your case.

External reviews are powerful. Independent reviewers are more likely to overturn denials than internal appeals. They have no financial incentive to deny your claim.

Your state’s insurance commissioner administers external reviews. Each state has different timelines and procedures. Some states require an internal appeal first. Others allow you to go straight to external review.

The external reviewer examines the same evidence plus any new information you provide. They issue a binding decision. The insurance company must follow it.

External reviews typically take 30-60 days for standard cases and 72 hours for urgent cases.

File your external review request with your state’s insurance commissioner’s office. Include your appeal letter, all medical records, and a cover letter explaining why you’re requesting external review.

How to Hire a Public Adjuster for Claim Disputes

When claims involve significant property damage or complex coverage disputes, hiring a public adjuster changes the outcome.

Public adjusters are licensed professionals who advocate exclusively for you. They negotiate directly with the insurance company. They handle the documentation, the appeals process, and the back-and-forth conversations.

Public Adjusters Atlanta works with residential and commercial property owners throughout the service area. Our licensed professionals assess your entire claim, identify damages the insurance company missed, and build a stronger case for appeal.

Here’s what a public adjuster does:

• Conducts a thorough damage assessment
• Reviews your policy and identifies coverage you may have missed
• Gathers medical records and supporting documentation
• Writes the appeal letter and manages the appeals process
• Negotiates directly with the insurance company
• Represents you in disputes and external reviews

Public adjusters are typically paid only if they increase your settlement. Their fee is a percentage of the additional money they recover for you. This means their interests align with yours, as they only get paid if you win.

For complex claims or large denials, a public adjuster can be a valuable asset. They often help policyholders recover more than initially offered.

File a Complaint with the State Insurance Commissioner

If the insurance company denies your appeal and refuses to reconsider, you can file a complaint with the state insurance commissioner’s office.

The state insurance commissioner regulates insurance companies in your state. They investigate complaints about unfair claim practices, bad faith, and violations of insurance law.

Filing a complaint does three things:

1. Creates an official record of the insurance company’s conduct
2. Triggers a state investigation into their practices
3. Puts pressure on the insurance company to settle

Insurance companies take state complaints seriously. A complaint on file can motivate settlement discussions that wouldn’t happen otherwise.

To file a complaint, contact your state’s insurance commissioner’s office. You can file online, by mail, or by phone. Provide your policy number, claim number, denial letter, and a summary of your appeal.

The state will investigate and determine whether the insurance company violated regulations. If they find violations, they can impose fines or require the company to overturn the denial.

This process takes time. But it’s free and it works.

What to Do if Your Appeal Is Still Denied

If your appeal fails and external review fails, you have additional options.

File a lawsuit. You can sue the insurance company for breach of contract or bad faith. Bad faith claims allow you to recover not just the claim amount but also attorney fees and punitive damages. Consult an attorney who specializes in insurance disputes.

Request a peer-to-peer review. Ask your doctor to speak directly with the insurance company’s medical director. A physician-to-physician conversation often resolves medical necessity disputes.

Escalate to the state attorney general. If you believe the insurance company engaged in unlawful practices, file a complaint with your state’s attorney general’s office.

Hire an attorney. For large claims or complex disputes, an attorney can navigate the legal system and force the insurance company to reconsider.

Don’t give up after one denial. The appeals process exists because initial denials are often wrong. Persistence wins.

Public Adjusters Atlanta provides expert insurance claim representation for residential and commercial property owners throughout the Metro Atlanta area. Our licensed professionals advocate exclusively for you, negotiating directly with insurance companies to ensure you receive the maximum settlement for damages such as fire, water, storm, and business interruption. We handle the complexities of the claims process, allowing you to focus on restoring your property to its pre-loss condition or better.

Overturning a denied insurance claim requires persistence, evidence, and the right strategy. The denial isn’t the final word, it’s the beginning of your fight. Gather your documentation, file your appeal within the deadline, and don’t hesitate to bring in professional help. Public Adjusters Atlanta stands ready to advocate for you and maximize your recovery.