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Appeal letter: crown denied as not necessary

An appeal letter template for a dental crown the plan denied as not needed, with the X-rays, photos and notes that make the case.

Updated November 11, 2026

The denial

The plan denied the crown as not necessary, often with a note that a filling would restore the tooth, or that the X-ray doesn't show enough damage.

Why plans deny it

  • The X-ray alone doesn't show cracks, or how much tooth is left once old filling and decay are out.
  • No intraoral photo or narrative was sent.
  • The plan's reviewer judged that a large filling would do.

Is it worth appealing?

Worth appealing when photos or notes show a crack, a broken cusp, or that most of the tooth's structure is gone. A reviewer can't see a crack on an X-ray.

What to send with the letter

  • Intraoral photo of the tooth before treatment, showing the crack, broken cusp or large old filling
  • X-ray of the tooth from before treatment, dated
  • Clinical notes with the findings and the diagnosis
  • A copy of the explanation of benefits

The letter

Paste it into your own letterhead and fill in the [brackets]. This page has no fields: nothing about the patient is typed here.

[Office name] [Office address] [Office phone] | [Office email] [Date] [Insurer name], Appeals [Insurer appeals address or fax] Re: Appeal of claim [claim number] Patient: [patient name] | Member ID: [member ID] | Date of birth: [date of birth] Subscriber: [subscriber name] | Group: [group number] Date of service: [date of service] | Procedure: [code] crown, tooth [tooth number] Dear Appeals Reviewer, We are writing to appeal the decision on the claim above, on behalf of our patient [patient name]. The plan denied this crown as not necessary. On [exam date], Dr. [dentist name] found [describe: a fractured cusp, a crack under an old filling, recurrent decay under a large filling] on tooth [tooth number]. After the old filling and decay were removed, about [percent] of the tooth's structure was left, too little to hold a filling. A filling would leave the remaining walls unsupported and at risk of breaking, which could mean losing the tooth. The enclosed photo shows [what it shows], which an X-ray can't show. A crown was the treatment that protects the tooth. Please review the enclosed records and reprocess the claim for payment under the patient's benefits. If you need anything else, call [contact name] at [phone]. Sincerely, [Dentist name], [DDS or DMD] NPI [NPI number] Enclosures: intraoral photo, X-ray, clinical notes, explanation of benefits

Before you send it

  • Send it before the deadline. The denial notice has to say how long you have and how to appeal. Employer plans that follow federal benefit claim rules give at least 180 days.
  • Send it to the appeals address or fax on the explanation of benefits, not the claims address.
  • The patient, or someone they authorize, has the right to appeal. Offices often send it for the patient; some insurers first ask for the patient's signed authorization form.
  • Keep a copy of everything you send and the date you sent it. If the appeal is denied, the plan has to explain why in writing.

For how plans pay this service and what to check before treatment, read the crowns billing guide.

A starting point, not legal advice. The plan's documents and the insurer decide what's paid.

CDT is a registered trademark of the American Dental Association. Tabruns is not affiliated with or endorsed by the ADA. The descriptions here are our own plain-English summaries, not the ADA's official wording; use your current CDT manual or practice software for the official code set.

Get the patient's share in dollars, from the benefits page

Most of these denials can be seen coming from the benefits page. Tabruns reads the coverage, deductible, yearly maximum, waiting periods and frequency limits from the insurer's portal and works out what the patient owes. Patient details stay on the office computer.

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