Getting a letter in the mail that says "CLAIM DENIED" for a medical procedure you already received is a nightmare. Suddenly, you are on the hook for thousands of dollars because your insurance company decided a test or treatment wasn't "medically necessary."
Here is the secret insurance companies don't want you to know: They deny millions of claims automatically using algorithms, hoping you won't fight back.
When patients actually go through the formal appeals process, nearly 40% of denied claims are eventually overturned.
Here is exactly how to fight an insurance denial and win.
Step 1: Find the "Explanation of Benefits" (EOB)
Look at your denial letter (the EOB). You need to find the specific Reason Code or explanation for why the claim was denied.
The most common reasons are:
- Not Medically Necessary: A doctor ordered it, but the insurance algorithm disagreed.
- Out of Network: You went to an approved hospital, but an out-of-network doctor treated you.
- Prior Authorization Required: Your doctor forgot to ask the insurance company for permission before doing the procedure.
- Coding Error: A simple typo by the hospital billing department.
If it's a coding error, just call the hospital billing department and ask them to resubmit it. For the other reasons, you need to appeal.
Step 2: Request Your Doctor's "Letter of Medical Necessity"
If your claim was denied for not being "medically necessary," call your doctor's office immediately. Ask them to provide a "Letter of Medical Necessity" and a copy of your clinical notes.
This letter from your doctor explicitly states why the treatment was required for your health, citing your specific symptoms and medical history.
Step 3: Write Your Formal Appeal Letter
You cannot win an appeal over the phone. You must submit a formal, written appeal letter to the insurance company's appeals department.
What to include in your appeal letter:
- Your Information: Name, policy number, claim number, and date of service.
- The Denial Reason: State exactly why they claimed they denied it.
- The Rebuttal: Explain, using facts, why their denial is incorrect. (e.g., "The attached clinical notes and Letter of Medical Necessity from Dr. Smith clearly demonstrate that the MRI was required to rule out a spinal fracture.")
- The Demand: Formally request that the claim be reprocessed and paid in full.
Pro-Tip: Mention the "No Surprises Act" if you were treated by an out-of-network doctor at an in-network emergency room.
Step 4: The "External Review" Threat
If your internal appeal is denied, you have a trump card. By federal law, you have the right to an External Review by an independent third party. Insurance companies hate external reviews because they cost the company money and the decisions are legally binding.
Always state in your appeal letter: "If this appeal is denied, I will immediately request an External Review through my state's Department of Insurance."
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Originally published at lettercraft.pro/blog/insurance-appeal
