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United States · denied health insurance claim
Health insurance appeal letter template — fill it in, print it, appeal within 180 days
Unlike sample PDFs, you fill the appeal letter in right here, see your 180-day deadline and print it — free, no sign-up.
Appeal by: type the date of the denial
Appeal sent? Count the decision and the external review
Decision due by: type the date
External review request by: type the date
Rules: 29 CFR 2560.503-1; 45 CFR 147.136. Your plan may allow longer — check your notice.
Calculated by federal rules: appeal at least 180 days after receipt (29 CFR 2560.503-1(h)(3)(i)); decision 72 hours / 30 / 60 days (§ 2560.503-1(i)(2)); external review 4 months, moved to the next business day after a weekend or federal holiday (45 CFR 147.136(d)(2)(i)). Your plan may allow longer and some plans follow other rules — check your notice.
Start typing right in the document — no sign-up. It stays in this browser; save it to your free Layers account to keep it, open it on your phone and share it.
- 1Fill in. Type into the health insurance appeal letter right here on the page — no sign-up, nothing to install.
- 2Print or download. Print it in one click, or download the Word file to keep and edit.
- 3Send. Send it to the address on the denial notice (certified mail or the plan’s portal) with your doctor’s letter; keep proof of sending.
- 4Deadline. Within 180 days of the denial notice; external review within 4 months of the final denial — see the calculator above.
Deadlines
The rules, with the source
| What | Deadline | Source |
|---|---|---|
| Internal appeal | At least 180 days after you receive the denial notice | 29 CFR 2560.503-1(h)(3)(i); 45 CFR 147.136(b) |
| Plan’s decision on the appeal | Urgent: 72 hours · care not yet received: 30 days · care already received: 60 days | 29 CFR 2560.503-1(i)(2) |
| External review request | 4 months after you receive the final denial; no matching date — the 1st of the fifth month; weekend or federal holiday — next business day | 45 CFR 147.136(d)(2)(i) |
| External review decision | 45 days after the reviewer receives the request; expedited — no later than 72 hours | 45 CFR 147.136 |
| Filing fee | Some state processes charge up to $25, refunded if you win and waived for hardship | 45 CFR 147.136(c)(2) |
These are the federal rules for employer plans and individual or Marketplace coverage. Your plan may allow more time — the denial notice states your deadline. Medicare, Medicaid, FEHB, TRICARE, VA and some church or grandfathered plans have their own rules.
Checklist
What to send with the appeal
- The denial noticeCopy the reason and the denial code exactly into the letter.
- Letter of medical necessityFrom your doctor: diagnosis, treatment history, why this care is needed now, the guideline it follows.
- Medical recordsNotes, test results, prescription history — what supports the doctor’s letter.
- Your plan’s wordingThe page of your summary plan description or evidence of coverage that covers the service.
- Proof of earlier stepsPrior authorization number, drugs tried before (step therapy), corrected claim from the provider.
- Authorized representative formIf someone appeals for the patient — many plans require their own form.
- Proof of sendingCertified mail receipt, fax confirmation or portal screenshot with the date.
Step by step
Five steps
1
Read the denial notice
Find the reason, the code, the appeal address and the deadline your plan gives you.
2
Count the days
Type the date you received it above — 180 days at least under federal rules.
3
Get the doctor’s letter
Ask for a letter of medical necessity; ask for an urgent appeal if waiting could seriously harm the patient.
4
Fill in and send the appeal
Use the letter below; ask for your claim file; send it with proof of delivery.
5
If denied again — external review
Within 4 months of the final denial. Use the second template.
Free templates
Open as a page or as Word
- Health insurance appeal letter Internal appeal of a denied claim or prior authorization: the denial, why it is wrong, request for the claim file, decision deadlines.
- External review request letter After a final denial: request for an independent external review, standard or expedited, with the list of evidence.
Templates written for this page; fields in [BRACKETS] are for you to fill in. Licence CC BY 4.0 · © Layers (layers.md).
What people do next
Still denied after the appeal?
Request an independent external review within 4 months — the second tab above. If you win, the plan must pay.
Need help for free?
Your state’s consumer assistance program or insurance department helps with appeals at no cost.
What Layers does with it
Honest status: Works today is live now; Coming is not yet.
02
The Word file
The same template as .docx — print it, sign it, file it. Opens in Word, Google Docs and LibreOffice.
- Works today Download as .docx
03
Deadline on this page
Type the date and see the last day and how many days are left.
- Works today Calculator on this page
- Coming Reminders before the last day
04
Share with family or a lawyer
One folder for the papers: share it, comment instead of long message threads.
- Works today Drive with shared folders, chat, calls
Questions
How do I write an appeal letter for a health insurance denial?
Your details and claim number, the reason for the denial copied from the notice, why it is wrong (medical necessity, plan wording, treatments tried, billing error), what you ask for, and a list of enclosures — with your doctor’s letter of medical necessity.
How long do I have to appeal a health insurance denial?
At least 180 days after you receive the denial notice under federal rules for employer and individual coverage (29 CFR 2560.503-1(h)(3)(i)). Your plan may allow longer; the notice states your deadline.
How long does a health insurance appeal take?
For group health plans with one level of appeal: 72 hours for urgent care, 30 days for care not yet received, 60 days for care already received (29 CFR 2560.503-1(i)(2)).
What is an external review?
An independent review organization — not your insurer — looks at a final denial that involves medical judgment, or a rescission of coverage. You ask for it within four months of the final denial; the decision is due within 45 days, or 72 hours if expedited, and binds the plan.
Can my doctor appeal for me?
Yes, as your authorized representative — many plans require their own form. For urgent care a doctor with knowledge of your condition can act for you.
Is this legal or medical advice?
No. It is a letter template and the deadlines written in the federal rules. Your plan documents and your doctor come first.
Other insurance claims
Keep the papers in one place
Letters, receipts and notices in one folder you can share with family or a lawyer. The templates and the editor are free; Layers is free for up to 20 people.
For information only — not legal or medical advice. Deadlines from 29 CFR 2560.503-1 and 45 CFR 147.136 as of October 2026; your plan documents and denial notice govern your case. Layers is not affiliated with any insurer or government agency.