Getting your insurance claim denied feels overwhelming, right? The good news is, you can usually appeal most denied claims if you follow a clear process: gather your documentation, figure out why you got denied, and submit a formal appeal on time.

Insurance companies deny millions of claims every year.
Many of these get overturned if you go through the appeals process.
Low-income patients carry the heaviest financial load from health insurance claim denials.
So, it’s really important to know your rights and what you can do if you get a rejection.
The appeals process depends on your insurance type and your state, but the main steps look pretty similar everywhere.
You need to move quickly because deadlines are strict.
Having the right documents can make all the difference between approval and another rejection.
Key Takeaways
- You can often get denied insurance claims approved if you follow the right steps and don’t miss deadlines
- You have to know why your claim got denied before you can put together a solid appeal
- Collecting all your paperwork and sticking to your insurer’s process boosts your odds of winning your appeal
Understanding Insurance Claim Denials

Insurance companies deny claims for reasons you can actually spot and address.
Nearly 1 in 5 in-network health insurance claims from plans sold on Healthcare.gov got denied.
It’s important to understand why denials happen and what you can do about them.
Common Reasons Insurance Claims Are Denied
Insurance companies usually deny claims for a few big reasons.
The top ones: lack of medical necessity, services not covered by your policy, and missing or incomplete paperwork.
Administrative Issues cause lots of denials.
Maybe someone used the wrong billing code, left out patient info, or filed after the deadline.
Your doctor’s office could submit the wrong diagnosis code or skip a required form.
Coverage Limitations pop up when your service isn’t part of your policy.
Some treatments need pre-authorization that wasn’t done.
Sometimes, the insurance company just says the treatment is experimental or unnecessary.
Documentation Problems show up if your medical records don’t back up your claim.
The insurance company might want more notes from your doctor or extra test results.
Network Issues happen when you see an out-of-network provider without the right approvals.
Emergency care is usually an exception, but regular out-of-network visits often get denied.
Reviewing Your Insurance Policy Details
Your insurance policy spells out what’s covered and what’s not.
Check your Summary of Benefits to see your limits, deductibles, and what’s excluded.
Coverage Exclusions list what your policy won’t pay for.
Stuff like cosmetic procedures, experimental treatments, and some therapies might be left out.
These details change depending on your policy and insurer.
Prior Authorization Requirements show up in your policy paperwork.
Lots of procedures, medications, and specialist visits need a green light before you go in.
Always check if you need approval first.
Annual and Lifetime Limits can put a cap on your benefits.
Some policies only cover a certain number of visits or treatments a year.
Others set lifetime maximums for certain conditions.
Deductibles and Co-payments affect whether your claim gets paid.
Make sure you know when these kick in and how much you’ll pay out of pocket.
The Role of Medical Records and Evidence
Medical records are the backbone of insurance claim decisions.
Your doctor’s notes should clearly show why you need a particular treatment or test.
Complete Documentation means you’ve got thorough visit notes, test results, and a treatment plan.
Your records should explain how your condition affects your life and why your doctor recommended certain treatments.
Supporting Evidence helps your case.
This could be lab results, scans, reports from specialists, or pharmacy records.
Each piece should tie back to your diagnosis and treatment plan.
Medical Necessity should be obvious in your records.
Your doctor needs to write down why cheaper or different treatments just wouldn’t cut it for you.
Timeline Documentation shows how your condition and treatments have changed over time.
This can help prove you need more advanced care when basic stuff hasn’t worked.
Denials Involving Medical Expenses and Living Benefits
Insurance companies often question whether expensive treatments are really needed.
That’s a common reason for medical expense denials.
Prescription Drug Denials happen if your medication isn’t on your plan’s list or needs pre-approval.
Your doctor can ask for an exception or explain why you need that specific drug.
Living Benefits Denials come up with life insurance policies that pay out early for terminal illnesses. Living benefits sometimes get delayed or denied if the insurance company questions your diagnosis or how your policy is worded.
Diagnostic Test Denials usually mean the insurer wants you to try a cheaper test first, or get a second opinion before they’ll pay for something pricey.
Treatment Denials hit both routine and specialized care.
Insurers often refuse to pay for expensive treatments unless you can prove cheaper ones don’t work for you.
Step-By-Step Guide to Appealing a Denied Claim

You’ll need a clear written explanation from your insurer, strong documentation for your appeal, and sometimes help from regulatory bodies or lawyers.
Timelines and procedures are strict, so don’t wait around.
Requesting a Written Denial Explanation
Your insurance company must send you a written explanation when they deny your claim.
This letter holds the details you’ll need for your appeal.
The denial letter should list the exact policy sections they used to deny your claim.
It also needs to explain the specific reasons for the denial.
What to look for:
- Policy provision numbers
- Medical review findings
- What documentation is missing
- Appeal deadlines
If you only got a phone call about your denial, call your insurer right away and ask for the written explanation.
Try to get it within 48 hours.
Check your insurance policies against the reasons they gave.
Spot any differences between what your policy says and why they denied you.
Keep everything organized in a special folder.
You’ll need this paperwork for your appeal.
Preparing and Submitting an Appeal
Before you write your appeal letter, gather every piece of documentation you can.
Medical records are usually the heart of a strong appeal.
Documents you’ll need:
- Full medical records from all your doctors
- Test results and diagnostic reports
- Second opinions, if you have them
- Employment records that show your work history
- Any extra evidence that supports your claim
Write an appeal letter that answers every reason for denial.
Point to the exact policy language that backs you up.
Send your appeal before the deadline in your denial letter.
Most insurers want appeals in 60 to 180 days after the denial.
Mail your appeal by certified mail with a return receipt.
That way, you can prove they got your documents.
Working with the Industrial Commission and Legal Help
If your employer-sponsored disability claim gets denied again, reach out to your state’s industrial commission.
They can check if your insurer followed the rules.
The industrial commission handles workplace insurance disputes.
They can order insurers to pay out valid claims.
When to get legal help:
- You’ve had several appeals denied
- Your case involves complicated medical issues
- You’re fighting over long-term disability benefits
- There’s a lot of money at stake
Lots of disability lawyers work on contingency, so you only pay if they win for you.
Take notes on every call, email, or letter with TCS Designs Inc. or any third-party company handling your claim.
These groups often manage claims for insurance companies.
Keep track of dates, names, and what was said.
It’s not fun, but it helps a lot.
Frequently Asked Questions

Appealing means knowing the steps, what documents you need, and how long things might take.
Most appeals work out if you provide strong medical evidence and stick to the rules and deadlines.
What steps should I take to appeal a health insurance claim denial?
Read your denial letter as soon as you get it—ideally within a day or two.
The letter spells out why you got denied and your appeal deadline.
Call your doctor’s office right away and ask for your full medical records.
Ask your provider to write a letter explaining why you needed the treatment.
Send your appeal before the deadline listed in your denial letter.
Most insurers give you 60-180 days.
Include every supporting document with your letter.
Send it by certified mail so you have proof they got it.
What are the key elements to include in an appeal letter for a denied insurance claim?
Put your policy number, claim number, and date of denial at the top.
Add your name and contact info.
Say clearly that you’re appealing the denial.
Mention the specific service or treatment that got denied.
Explain why you think the denial was wrong.
Use medical language from your doctor’s notes if you can.
Attach copies of your medical records, doctor’s letters, and test results.
Add any new info that helps your case.
How do I compose a compelling reconsideration letter for a denied insurance claim?
Keep it professional and stick to the facts—skip the emotional stuff.
Focus on medical details and your policy.
Quote the exact sections from your insurance policy that support your claim.
Point out the coverage language that fits your situation.
Address every reason for denial from the original letter.
Show evidence that challenges the insurer’s points.
Keep your letter short and organized.
Bullet points help highlight key facts or policy rules.
What is the typical timeline for resolving an insurance appeal process?
Most health insurance appeals take about 30-60 days for a decision.
Some tricky cases might take up to 90 days.
If you need urgent care, appeals can sometimes wrap up in 72 hours.
You’ll need to show that waiting would hurt your health.
External appeals through state agencies usually take 45-60 days.
This happens after your insurer denies your internal appeal.
If it’s a medical emergency, you can ask for an expedited review.
Sometimes emergency appeals get decided within 24 hours.
In what circumstances can a claim be denied as not medically necessary, and how can this be contested?
Insurers deny claims if they think treatment is experimental or unproven.
They also deny if there’s a cheaper option available.
Pre-existing conditions can also lead to denials for medical necessity.
Some plans exclude coverage for conditions you had before joining.
To fight these denials, ask your doctors for detailed letters.
Have them explain why your treatment was the right call.
Look up medical studies that back up your treatment.
Attach peer-reviewed articles that show it works.
After a denial of an insurance claim, what are my immediate options for proceeding with an appeal?
Start by filing an internal appeal with your insurance company.
Most of the time, you need to do this before you try anything else.
You can ask for an external review through your state insurance department.
An independent medical reviewer will look at your case.
If your claim is for a large amount, you might want to hire an attorney. Attorneys can help strengthen your appeal and deal with tricky insurance rules.
Reach out to your state insurance commissioner’s office for advice.
They’re there to explain your rights and can help if you’re stuck in a disagreement with your insurer.