Prior authorization appeal letter template
A free, fillable prior authorization appeal letter you can copy, complete, and send. It is built on the structure that actually wins prior authorization appeals, not a generic reconsideration request.
The prior authorization appeal letter template
Copy the template below and replace every bracketed field with your details. Keep it to one or two pages plus attachments.
[Date] [Your full name] [Your address] [Your phone] · [Your email] [Insurer name], Appeals Department [Appeals address from your denial letter] Re: Appeal of prior authorization denial Member: [Patient name] · Member ID: [Member ID] · Group: [Group #] Claim #: [Claim #] · Date(s) of service: [Date of service] Denial date: [Denial date] · Denial/reason code: [Code] To the Appeals Department: I am formally appealing [Insurer]'s [denial date] denial of [service or medication]. I request that the denial be overturned and the prior authorization approved. 1. The denial. [Insurer] denied this prior authorization stating, verbatim: "[paste the exact denial language from your letter]." 2. Why the denial is incorrect. [State, in one or two sentences, why the service is medically necessary for your condition, and answer the specific reason the plan gave.] 3. The controlling standard. [See the standard for this denial type below, then cite it here.] 4. The evidence. I am attaching: - A letter of medical necessity from my treating provider addressing each clinical criterion; - [Your supporting records: see the document checklist below]; - The clinical guidelines and records that support coverage. 5. My request. I request a full reversal of this denial and approval of [service or medication] within the timeframe required by law. If the denial is upheld, please provide in writing the specific clinical criteria used, the credentials of the reviewing clinician, and instructions for independent external review. Under 29 C.F.R. 2560.503-1 (employer plans) or 45 C.F.R. 147.136 (ACA plans), please also provide all documents and records relevant to this claim. Sincerely, [Patient name / authorized representative]
The controlling standard for prior authorization denials
The plan must disclose the clinical criteria it applied and meet ERISA § 503 decision timelines (72 hours urgent, 30 days standard).
What makes a prior authorization appeal letter win
Mark urgent if the provider can sign off, drops 30-day window to 72 hours. Request peer-to-peer review with the medical director. Force the carrier to disclose the criteria, then have the provider's letter address each criterion.
The letters that get overturned share a structure: they quote the denial, rebut the plan's specific criteria point by point, cite the controlling standard above, attach a treating-provider letter of medical necessity, and make a clear demand for reversal. Generic letters that simply ask the plan to reconsider do not move reviewers.
Documents to attach
- Denial letter
- Original prior-auth request
- Provider's clinical notes
- Records of any prior conservative therapy
Skip the blank page
Apellica builds the full prior authorization appeal for you, with the criteria rebuttal, the controlling-standard citation, and the medical-necessity evidence pack assembled. $0 upfront, pay only if we win.
Build my appeal free →Prior authorization appeal: frequently asked questions
Can I appeal your my insurer prior authorization denial?
Yes. Most denials people receive are prior-authorization refusals issued before care. Mark the appeal urgent if your provider signs off, which drops the 30-day window to 72 hours, and request a peer-to-peer with the medical director.
How long does my insurer have to decide a prior-auth appeal?
Urgent appeals must be decided within 72 hours and standard appeals within 30 days. Most plans give you a 60 to 180 day window to file.
Why was my prior authorization denied?
Common causes are incomplete documentation from the provider, criteria the plan deems unmet (often without disclosing them), undocumented step therapy, or wrong CPT or ICD codes. Forcing criteria disclosure under ERISA turns the denial into a checklist you can rebut.
What is a peer-to-peer review and does it help?
It is a direct call between your treating provider and the plan's medical director. For prior-auth denials it is frequently the fastest path to reversal because your provider can address the exact criterion in real time.