Free Health Insurance Appeal Letter Template

Before you use the template

Confirm the deadline, approved submission channel, and whether the plan requires a specific appeal form. Use only facts you can support. Remove instructions and placeholders before sending. Send sensitive records through the plan’s designated channel rather than posting them publicly.

What to attach

Number the attachments and refer to the relevant pages in your explanation. If a clinical issue is involved, ask your treating clinician for records and a letter that addresses the denial’s actual criteria.

• The denial and relevant EOB.
• A short timeline of the claim or authorization request.
• Supporting clinical or billing documents relevant to the disputed reason.
• Any required representative authorization.

Adapt the request to your situation

Your letter should answer the reason in the denial notice. Keep the explanation short, stick to facts you can document, and ask for a clear next step. These examples show the shape of a response; replace them with your own facts and the plan’s instructions.

Examples for common denial reasons

For a billing or claim-processing error: “The denial says [reason]. The attached [record] shows [specific fact]. Please reprocess claim [number] using the corrected information.”

For missing prior authorization: “The notice says no approval was on file. The attached approval dated [date] lists [service] for [date of service]. Please review the claim against that approval.”

For medical necessity: “The notice says the service did not meet [plan criterion]. My treating clinician’s attached letter and records explain [specific facts that address the criterion]. Please review these materials.”

Use only statements supported by your records. If a clinical reason is involved, ask your treating clinician to help explain how the records address the plan’s stated criteria.

After sending the letter

Keep a complete copy and proof of submission. Confirm receipt and ask for the appeal reference number and expected response date. If you get another denial, read the next-level instructions promptly. An appeal does not automatically pause the provider’s billing.

Customizable appeal letter

Replace every bracketed field. Include only information relevant to your appeal and follow your plan’s form and signature requirements.

[Date]
To: [Plan appeal department / approved submission channel]
Re: Appeal of denial [claim or authorization number]
Patient: [Name]
Member ID: [ID]
Provider and service date: [Details]

I request reconsideration of the denial dated [date], received on [date], for [service or claim]. The notice gives this reason: [accurate summary].

I disagree because [specific facts addressing that reason]. The relevant plan provision is [provision, if known]. Please consider [attached evidence and page references], which shows [why it matters].

I request [specific action, such as reprocessing the claim or reviewing authorization]. If you maintain the denial, please provide the reasons, the plan provisions and criteria relied on, and instructions for any further review available to me.

Please confirm receipt and tell me if additional information is needed.

[Name, signature if required, and contact information]
Attachments: [Numbered list]