Before you write: is it an appeal at all?
- Missing or wrong information (for example CARC 16): fix the field and send a corrected claim. No appeal letter is needed.
- Wrong payer or order of benefits (CARC 109, CARC 22): resubmit to the right plan.
- The payer reviewed the claim and disagreed: write the appeal. Find your code in the denial code guide first, because the fix for that code tells you which records to attach.
Check the deadline on the denial notice before anything else; see how long a dental claim appeal takes. Send the letter to the address or portal on the denial notice or on the insurer's own provider page. Addresses and forms change, so copy them from the source, not from a template.
The template
This works for any denial. Keep the "why the denial is wrong" paragraph to one paragraph and tie it to a record you are attaching.
[Practice name]
[Practice address] | [Practice phone] | [Practice NPI]
[Date]
[Insurer name]
Attn: Appeals / Reconsideration
[Appeals address or portal, copied from the denial notice or the insurer's own provider page]
RE: Appeal of denied claim
Patient: [patient name or initials] Member ID: [member ID] Group: [group number]
Claim number: [claim number from the EOB] Date of service: [date of service]
Procedure: [CDT code and description], tooth/area [tooth or quadrant]
Denial code and reason as printed: [CARC / RARC / group code and the insurer's wording]
Date of denial: [date on the EOB]
To the appeals reviewer:
We are appealing the denial of the claim above and ask that it be reprocessed and paid.
Why the denial is wrong: [One paragraph. Say what the denial says, then what the record shows. Cite the plan provision or policy the insurer relied on, if the notice names one.]
Clinical and billing support attached:
1. [Narrative signed by the treating dentist]
2. [Radiographs, with dates]
3. [Chart notes or periodontal charting, with dates]
4. [Copy of the EOB and the original claim]
We ask that the claim be paid at [the amount billed / the contracted allowance] for [CDT code]. If the denial is upheld, please send the specific plan language relied upon and the reviewer's credentials, and the steps and deadline for the next level of appeal.
Sincerely,
[Name, title]
[Practice name] | [Phone] | [Email]
Enclosures: [number] pages
Sample: crown (D2740)
Use this when a crown is denied as not necessary, not covered, or too soon after a prior restoration. Read the D2740 / D2750 crown denial guide and, if a buildup was denied with it, the D2950 guide. Put this in place of the middle of the template.
RE: Appeal of denied claim [claim number]: D2740 crown, tooth [tooth number], date of service [date]
To the appeals reviewer:
We are appealing the denial of the crown on tooth [tooth number]. The EOB dated [EOB date] lists [denial code and wording as printed].
Why the denial is wrong: Tooth [tooth number] [describe the condition from the chart, for example: has a fractured cusp / has recurrent decay under an existing restoration / has a failing restoration with much of the crown structure lost]. The attached radiograph dated [date] and the clinical photo dated [date] show [what the image shows]. A direct restoration is not appropriate because [treating dentist's reason in the dentist's own words, for example the amount of remaining tooth structure or the cusp coverage needed]. The plan's stated crown criteria are [quote the criteria from the plan document or the denial, if listed]; this case meets them because [one sentence tied to the record].
If the denial cites replacement timing: the prior crown or restoration on this tooth was placed on [date] and is no longer serviceable because [reason, with the chart note date].
Attached: [signed narrative], [pre-operative radiograph, with date], [clinical photo], [chart note, with date], [copy of the EOB].
We ask that the claim for D2740 be reprocessed and paid at [the contracted allowance].
Sincerely,
[Treating dentist name, license number]
[Practice name] | [Phone]
Sample: scaling and root planing (D4341 / D4342)
Use this when SRP is denied for necessity, frequency, or a waiting period. Read the D4341 / D4342 guide first. Put this in place of the middle of the template.
RE: Appeal of denied claim [claim number]: [D4341 or D4342] scaling and root planing, [quadrant(s)], date of service [date]
To the appeals reviewer:
We are appealing the denial of scaling and root planing in [quadrant(s)]. The EOB dated [EOB date] lists [denial code and wording as printed].
Why the denial is wrong: The periodontal charting dated [date] documents probing depths of [range] mm at [number] sites in [quadrant(s)], with [bleeding on probing / recession / furcation involvement, as charted]. The radiographs dated [date] show [bone level findings as read by the dentist]. The diagnosis in the chart is [periodontal diagnosis as recorded by the dentist]. Scaling and root planing is the indicated first-phase treatment for this finding, and the procedure code billed matches the number of teeth treated: [number] teeth in [quadrant(s)] for [D4341 four or more teeth / D4342 one to three teeth].
If the denial cites frequency or a waiting period: the last SRP on these quadrants was on [date, or "none on record"], and the plan's limit as stated on the EOB or plan document is [limit and source].
Attached: [full-mouth periodontal charting, with date], [radiographs, with dates], [treatment notes with anesthesia and teeth treated], [signed narrative], [copy of the EOB].
We ask that the claim be reprocessed and paid at [the contracted allowance].
Sincerely,
[Treating dentist name, license number]
[Practice name] | [Phone]
Attach these, in this order
- The signed narrative from the treating dentist.
- The radiographs and photos that show the finding, each labeled with its date.
- The chart notes or periodontal charting for the date of service.
- The EOB and a copy of the original claim.
Keep a copy of everything you send, record the date and how it was sent, and set a follow-up date. Other denial codes have their own fixes: see all dental claim denial codes and reasons.
Questions
Should I send an appeal or a corrected claim?
If the denial says information is missing or a field is wrong (CARC 16 is the common one), send a corrected claim. If the payer reviewed what you sent and disagreed, appeal. See the CARC 16 guide and the other code guides to tell which you have.
How long do I have to appeal?
The deadline is on the denial notice or the plan's provider manual, and it differs by payer. Read it before anything else, and see how long a dental claim appeal takes for the two clocks that run.
Who should sign the letter?
The treating dentist should sign any narrative that describes clinical findings. The office manager or biller can sign the cover letter.
Sources: code meanings follow the X12 claim adjustment reason code list. Appeal addresses, forms and deadlines come from each insurer's own denial notice and provider materials. Checked 2026-10-30.
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