Formulary Exception Appeal Letter Template

Use this template when your prescribed medication isn't on your insurance plan's formulary or is placed on a high cost tier. You're requesting an exception for coverage or tier placement.

Formulary Exception Appeal Letter

[Your Name] [Address] [Date]

[Insurance Company / Pharmacy Benefit Manager] [Appeals Department Address]

RE: Formulary Exception Request Member: [Your Name] ID: [Policy Number] Medication: [Drug Name, Dose, Frequency] Pharmacy: [Pharmacy Name] Prescriber: Dr. [Name]

Dear Formulary Exception Review Committee:

I am requesting a formulary exception for [medication name] prescribed by Dr. [Name] for the treatment of [condition]. This medication is [not on the formulary / on Tier X, and I am requesting Tier Y coverage].

1. Clinical Necessity

I have been diagnosed with [condition/ICD-10 code]. Dr. [Name] has prescribed [medication] because:

  • [Specific clinical reason for this medication]
  • [Why it is superior to formulary alternatives for my condition]
  • [Relevant clinical trial data or guidelines supporting use]
2. Formulary Alternatives Tried

I have tried the following formulary medications without adequate response:

MedicationDates UsedOutcome
[Drug 1][Dates][Failed — describe why: side effects, lack of efficacy, etc.]
[Drug 2][Dates][Failed — describe why]
3. Contraindications to Formulary Alternatives

[If applicable] The following formulary alternatives are contraindicated because:

  • [Drug interaction with current medication]
  • [Allergy/adverse reaction history]
  • [Medical condition that prevents use]
4. Cost-Effectiveness Argument

[If applicable] Covering [medication] at a lower tier will:

  • Prevent emergency visits and hospitalizations caused by inadequately controlled [condition]
  • Allow me to remain adherent to treatment (current tier cost of $[amount] is a barrier)
  • Reduce overall healthcare costs through effective disease management
Requested Action: Approve [medication] as a formulary exception [at Tier X cost-sharing].

Sincerely, [Your Name]

Supporting Documentation

  • Physician letter of medical necessity
  • Documentation of formulary drug trials and failures
  • Prescription with clinical indication noted
  • Relevant lab results or clinical assessments

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Frequently Asked Questions

How long does a formulary exception take?

Standard requests: 72 hours. Urgent/expedited requests: 24 hours. If your medication need is urgent (e.g., you'll run out before the standard timeline), specifically request expedited review.

Can I get a temporary supply while the exception is reviewed?

Yes. Many plans provide a temporary (transition) supply, especially for new members or when there's a formulary change. Ask your pharmacist or insurer about a transition fill while your exception is processed.