Health Insurance
What to Do When Health Insurance Denies Your Claim: First 7 Days
They said denied. You say appeal. Paste your health insurance denial or bill into the free analyzer — see why you were denied and how to fight it.
Analyze my denial — freeThe week after a denial letter arrives is when appeals are won or lost — not because you must act that fast, but because the winners spend it building a record while everyone else spends it being angry at a phone tree. About 1 in 5 claims is denied; fewer than 0.2% are appealed. You're about to be in the second group.
Here's the first-week action plan, and a free template for the single highest-leverage letter most people never send: the claim-file request that makes the insurer show you exactly what it used to deny you.
The 7-day action plan
Day 1 — Read the denial letter completely. Find three things: the exact denial reason (and code), the plan provision cited, and your appeal deadline. Calendar the deadline immediately — at least 180 days on ACA plans, but the letter's printed date controls.
Day 2 — Do not pay, do not panic-call. One calm call to member services with one goal: confirm where appeals are submitted and what the claim number is. Note the date, time, and representative's name for everything.
Day 3 — Send the claim-file request (template below). You're entitled to the documents, criteria, and reviewer credentials behind the denial — free on request for employer plans under ERISA, and routinely honored elsewhere.
Day 4 — Call your provider's billing office. Ask them to check the claim's coding against the chart (a large share of denials are administrative), and to hold the account from collections while the claim is in dispute — ask for that on the record.
Day 5 — Book time with your doctor's office about a letter of medical necessity if the denial is clinical. Share the insurer's stated reason so the letter can answer it directly.
Days 6–7 — Assemble the file: denial letter, EOB, plan document pages, records list, your timeline of events. When the claim file arrives, you'll know exactly which criteria your appeal must answer.
The claim-file request letter (send this on day 3)
Copy it, replace every [BRACKETED] field with your facts, and delete anything that doesn't apply. It's free — no email wall.
Or skip the blanks — AppealIQ fills this with YOUR facts and real citations in about 60 seconds.
What to customize
- Keep the ERISA sentence only if your coverage comes through an employer; delete it for marketplace or individual plans.
- The claim identifiers — exactly as printed on the denial letter, so nothing gets 'lost.'
- Add a specific document if you know it exists (e.g., 'the peer review report referenced in your letter').
Common mistakes that sink letters like this
- Treating the denial as final. It's a first decision — a large share of appealed denials are reversed.
- Paying the bill immediately. Payment doesn't end your appeal rights, but ask the provider to pause collections instead while you dispute.
- Calling repeatedly instead of writing once. Calls leave no record; this letter starts one.
- Letting the deadline drift. 180 days feels infinite in week one and then it isn't.
- Appealing blind — filing without the claim file means guessing at the criteria your appeal must beat.
Frequently asked questions
Should I pay the bill while I appeal?
Ask the provider's billing office in writing to hold the account from collections while the claim is in appeal — most will. If a bill is about to hit collections, paying doesn't waive your appeal; you can still recover it if you win.
How long do I have to appeal?
At least 180 days from the denial notice on ACA-regulated plans; your denial letter's stated deadline controls. External review, if needed later, generally must be requested within 4 months of the final internal denial.
What if the denial was just a billing code error?
Common — and fixable. The provider corrects and resubmits the claim; you file a short appeal in parallel so your deadlines stay protected if the resubmission stalls.
Keep reading
They said denied. You say appeal.
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This page is general information, not legal advice. AppealIQ is not a law firm and does not provide legal advice. Deadlines and rules vary by state and plan — verify yours before acting.