How to Handle a Denied Insurance Claim with Your Provider

Getting an insurance claim denied is frustrating and often feels final. But it's not. Insurance companies deny claims routinely — studies show that roughly 1 in 5 health insurance claims are initially denied, and most people never appeal. Those who do appeal win about half the time. Here's how to fight back.

Why Insurance Claims Get Denied

Health Insurance

• Prior authorization not obtained: Your doctor didn't get pre-approval for a procedure
• Out-of-network provider: You saw a provider not in your plan's network
• Not medically necessary: The insurer's reviewers disagree with your doctor's recommendation
• Coding errors: Wrong diagnosis or procedure codes on the claim
• Experimental treatment: The insurer classifies the treatment as experimental

Auto Insurance

• Policy lapse: Your coverage wasn't active at the time of the incident
• Excluded event: The type of damage isn't covered (flooding on a basic policy)
• Disputed fault: The insurer says you were at fault or partially at fault
• Late filing: You didn't report the claim within the required timeframe
• Pre-existing damage: The insurer claims the damage existed before the incident

Home Insurance

• Maintenance issue: The insurer claims the damage resulted from poor maintenance, not a covered event
• Excluded peril: The type of damage isn't covered (mold, earth movement, flooding)
• Insufficient documentation: Not enough evidence of the damage or its cause
• Policy limits exceeded: The claim exceeds your coverage limits

Step-by-Step: Appeal a Denied Claim

Step 1: Understand the Denial

Read the denial letter carefully. It must include:

• The specific reason for denial
• The policy provision they're citing
• Your right to appeal and the deadline
• How to request your claim file

Request your complete claim file. You're entitled to see everything the insurer reviewed, including internal notes.

Step 2: Gather Evidence

Build your appeal case:

• Medical claims: Get a letter from your doctor explaining why the treatment is medically necessary
• Auto claims: Get independent repair estimates, accident reports, witness statements
• Home claims: Get an independent adjuster's assessment or contractor estimates
• All claims: Photos, receipts, correspondence, and any expert opinions

Step 3: File a Formal Internal Appeal

Most insurers have a formal internal appeal process:

1. Write an appeal letter citing the specific denial reason
2. Explain why the denial is wrong, referencing your policy language
3. Attach supporting documentation
4. Send via certified mail with return receipt
5. Keep copies of everything

Health insurance appeals have federally mandated timelines:

• Urgent care: 72-hour review
• Pre-service: 30-day review
• Post-service: 60-day review

Step 4: Request an External Review

If the internal appeal fails:

• Health insurance: You have the right to an independent external review under the ACA. The external reviewer is not employed by your insurer.
• Auto/home insurance: File a complaint with your state's Department of Insurance
• All types: An insurance attorney can review your case, often for a free consultation

Step 5: Escalate Further

If appeals fail:

• State insurance department complaint: Every state has a department that regulates insurers. Filing a formal complaint creates a regulatory record and forces the insurer to respond.
• Bad faith lawsuit: If the insurer unreasonably denied your claim, you may have grounds for a bad faith insurance lawsuit. Many attorneys take these on contingency (no upfront cost).
• Public pressure: Social media posts about denied claims sometimes get attention from insurer PR departments, especially for egregious denials.

Appeal Letter Template

Your appeal letter should include:

1. Your name, policy number, and claim number
2. The date and reason for denial
3. Why you disagree, citing specific policy language
4. Supporting evidence summary
5. What resolution you're requesting
6. A deadline for response (typically 30 days)

Quick Checklist

• [ ] Read the denial letter and understand the specific reason
• [ ] Request your complete claim file
• [ ] Gather supporting evidence and expert opinions
• [ ] File a formal internal appeal within the deadline
• [ ] Send everything via certified mail
• [ ] Request external review if internal appeal fails
• [ ] File a state insurance department complaint
• [ ] Consult an insurance attorney for complex or high-value claims

Bottom Line

Insurance companies count on most people accepting denials without fighting back. The appeal process exists because denials are often wrong — coding errors, miscommunication, or overly aggressive denial algorithms. You win about 50% of appeals, and the process costs nothing. Always appeal.

Sources

• Kaiser Family Foundation — health insurance denial and appeal rates
• National Association of Insurance Commissioners — consumer complaint process
• Affordable Care Act — external review provisions