Your claim came back denied. You can fight that, but you have to do it on paper and on time.
For most U.S. insurance disputes, the path is straightforward: read the denial letter, file an internal appeal, then escalate to an independent reviewer or a state regulator if the insurer still says no. Which route applies depends on your policy and who regulates it. Health plans often carry federal appeal rights. Auto, home, and most other policies go through your state insurance department.
Start With the Denial Letter
The denial letter is your first stop. Look for the stated reason, the appeal deadline, and your claim and policy numbers. If the letter has no deadline, call the insurer. Ask for one, then get the answer in writing. Thing is, a phone call won't save you once the window closes.
Request the full claim file. On a health claim, ask specifically for the clinical criteria or medical policy behind the denial. Keep copies of everything. Never mail originals.
Internal Appeal First for Most Claims
An internal appeal asks the insurer to look at its own decision again. It's usually the first step you're required to take. Use the insurer's appeal form or write a short letter. Cite the policy clause that supports coverage. Attach only the documents that answer the denial reason you were given.
- Your name, policy number, claim number, and the date at the top.
- The denial date and the reason the insurer gave.
- Why that reason is wrong, tied to policy language and facts.
- A list of what you're enclosing.
- A request for a written decision by the plan's deadline.
- Sending method: portal or certified mail.
- A follow-up date on your calendar.
Deadlines vary by claim type. Health claims run on their own clocks. HealthCare.gov's page on internal appeals says urgent health claims must get a final decision as fast as your condition requires, and no later than four business days after the appeal is received. Group health plans are different. The DOL guide to filing a claim lays out separate timelines for urgent, pre-service, and post-service claims. Read your plan documents, because the claim type sets the deadline.
Evidence That Actually Moves a Denial
The packet should answer the exact reason the adjuster or reviewer gave you, not every grievance you've collected over the years.
| Claim type | Useful evidence |
|---|---|
| Auto total loss | Independent appraisal, comparable vehicle listings, police report, photos, repair estimates, loan or lease payoff |
| Home | Damage photos, contractor bids, weather reports, inspection reports, receipts, proof of maintenance |
| Health | Denial letter, explanation of benefits, medical records, doctor's letter, plan language, clinical criteria |
| Disability or life | Policy, medical records, occupational records, denial letter, appeal history |
Turns out, a clean packet beats a fancy one. Documents that don't speak to the denial reason just slow the review down.
When an Internal Appeal Isn't Enough
Health plans get a second layer called external review. If your plan is non-grandfathered under the Affordable Care Act, you can usually ask for an independent review after the internal appeal is denied. HealthCare.gov's external review page explains the process. It also notes that any charge can't exceed $25 per review. The reviewer does not work for the insurer.
Some plans fall under the HHS-administered federal external review process. CMS's page on that process says a decision there is final. The governing rules for non-grandfathered plans live in 45 CFR 147.136.
Auto, home, and other property or casualty disputes work differently. There, the main escalation route is a complaint to your state Department of Insurance. Regulators in most states handle complaints against insurers, HMOs, agents, and adjusters. The Ohio Department of Insurance complaint page is one example. Ohio takes complaints online and by mail through its Consumer Services Division. If you mail one in Ohio, the address is Ohio Department of Insurance, Consumer Services Division, 50 West Town Street, Third Floor/Suite 300, Columbus, OH, 43215.
Self-funded employer health plans sit outside state insurance department authority. For those ERISA plan claims, the federal contact is the U.S. Department of Labor's Employee Benefits Security Administration. The DOL benefit claims procedure FAQs explain which plans fall under that rule.
| Path | Best for | Who decides |
|---|---|---|
| Internal appeal | First denial | Insurer |
| External review | Health plan denial after internal appeal | Independent reviewer |
| State DOI complaint | Unresolved auto, home, health, agent, or adjuster issues | Regulator |
How to File a State Insurance Department Complaint
- Go to your state DOI website. Search for your state plus insurance department complaint.
- Open the online complaint form. If none exists, download the PDF.
- Enter policy, claim, denial, and appeal history.
- Upload PDFs of the denial letter, policy pages, evidence, and appeal.
- Keep the confirmation number.
- If mailing, use certified mail and keep the receipt.
A DOI complaint isn't a lawsuit. It can push an insurer to explain itself in writing, and it can move a stalled claim. Payment still isn't guaranteed.
Write a Complaint Letter That Gets Read
One page is the target. The reviewer doesn't want your whole history. They want three things: the denial reason, your rebuttal, and the evidence. To be honest, a tight packet gets a better response than a long story every time.
[Your name]
[Date]
[Insurer claims department]
Re: Policy [number], Claim [number]
I am appealing the denial dated [date]. The denial says [reason]. That reason conflicts with [policy section] because [facts]. Enclosed are [documents]. Please reverse the denial and pay [amount] or send a written decision explaining what evidence is still missing.
Sincerely,
[Name]Attach copies, never originals. If you're mailing certified, also upload the same packet to the insurer's portal. Two proofs of delivery is better than one.
Auto Total Loss, Home, and Health: Quick Differences
Auto total loss fights usually come down to actual cash value. If the insurer's number looks low, get an independent appraisal. Home claims often turn on cause: sudden covered damage versus wear and tear. Health claims usually turn on medical necessity or whether the plan covers the service at all. Different arguments, different templates. Don't send the same letter to all three.
When to Get Outside Help
State DOI consumer services answer questions at no cost. A public adjuster can help with a property claim, but they take a cut of the settlement. If you suspect bad-faith conduct, talk to a consumer law attorney licensed in your state. Rules and remedies differ a lot from one state to the next, and what counts as bad faith in one place may not fly in another.
FAQ
How long do I have to appeal a denied insurance claim?
Look at the denial letter first, then the policy. Health plans follow federal and plan-specific deadlines. Auto and home deadlines come from your policy and state law.
Can I file a DOI complaint before the internal appeal?
Usually you can't. Regulators expect you to finish the insurer's internal appeal first. Urgent health situations can be an exception.
Does a state insurance department handle ERISA plans?
Often it doesn't. Self-funded employer plans fall under federal ERISA rules. For those, contact the DOL's EBSA.
Can I sue my insurer?
You can talk to a lawyer, but lawsuits take time and state law varies. A DOI complaint or external review is usually cheaper and quicker.
This is general information, not legal advice. Tonight, pull out the denial letter, write the deadline on it, and get the appeal out the door before the window closes.