Medication Prior Authorization/Appeal Letter

Date: [MM/DD/YYYY]

To: [Payer name, department, fax number and/or portal submission reference]

From: [Prescriber full name, credentials, specialty, practice name, practice address, direct callback number for peer-to-peer, fax, NPI]

Patient: [Full name, DOB]

Insurance: [Plan name, Member ID, Group ID if available]

Request Type: [Initial PA / Formulary Exception / Tier Exception / Step Therapy Override / Quantity Limit Exception / Appeal Level __]

Priority: [Standard / Expedited] (If Expedited, include one sentence explaining the specific clinical harm expected from delay.)

Reference Numbers: [PA number, denial reference, claim number as applicable]

Medication Requested

[Medication generic name (Brand)] — [dosage form/route], [strength], [dose and frequency], [quantity per fill], [duration requested].

Indication: [Diagnosis] — [ICD-10 code(s)]

Summary of Medical Necessity

(Provide 4–6 concise bullets enabling rapid triage by the reviewer.)

• [Current disease severity with objective measure and date]
• [Why formulary alternatives are not appropriate—prior failures, contraindications, intolerances, or phenotype mismatch]
• [Guideline alignment—cite organization and year with applicable recommendation]
• [Expected clinical harm if treatment is delayed or denied]
• [If step therapy override: rationale for bypass] (Omit if not applicable.)
• [If stable on requested medication: objective benefit and duration of stability] (Omit if new start.)

Clinical Background

[Diagnosis and disease course—onset, progression, complications with dates]

[Current severity and functional impact—objective measures with dates and values; if objective measures unavailable, state why and provide best clinical proxies]

[Pertinent examination findings, labs, and imaging relevant to medication choice with dates]

[Comorbidities impacting drug selection or safety] (Include only if directly relevant.)

Prior Therapies and Outcomes

(Document each relevant prior medication using the format below. Include non-pharmacologic therapies if relevant to step therapy requirements.)

• Agent: [Medication name and class]; Dose/Route: [dose, route, frequency]; Dates: [Start – End]; Adequacy: [Adequate trial / Inadequate due to ...]
  Outcome: [Ineffective / Partial response / Intolerance]; Reason stopped: [Specify]; Objective evidence: [Values/scores with dates if available]
  Adverse reaction: [Suspected agent, reaction description, timing, severity, management; distinguish hypersensitivity vs intolerance] (Include if applicable.)
• (Repeat for each prior therapy.)

[Explanation if any required formulary alternative was not tried—contraindication, class reaction, high-risk comorbidity, guideline discordance, or urgency] (Include only if applicable.)

Contraindications and Barriers to Alternatives

(Include this section when justifying why formulary alternatives cannot be used; omit if not applicable.)

• [Medical contraindications to alternatives—specify condition and mechanism of risk]
• [Significant drug–drug interactions with current medications]
• [Documented prior adverse reactions—timing, severity, management; distinguish hypersensitivity from intolerance]
• [Practical barriers affecting adherence or safety—swallowing difficulty, cognitive impairment, monitoring access]

Rationale for Requested Medication

[Medical necessity statement—indicate FDA-approved or off-label with compendia/guideline support]

[Guideline support—cite organization and year; summarize recommendations applicable to this patient's severity, phenotype, and treatment history]

• [High-yield evidence point on efficacy relevant to this patient]
• [Evidence point on safety or monitoring advantages]
• [Evidence point on comparative effectiveness vs alternatives]

[Direct comparison to formulary alternatives: "Alternative X is not appropriate because..." with patient-specific reasoning]

[If stable or previously responsive on requested medication: duration of stability, objective benefit, and risks of disruption if switched] (Include if applicable.)

Dosing, Administration, and Quantity

Regimen: [Dose], [route], [frequency], [titration schedule if applicable]

Quantity per fill: [Quantity] for [days' supply]; Total duration: [Duration]

Site of care: [Home / Outpatient clinic / Infusion center]; Specialty pharmacy: [Plan-preferred / Manufacturer / Other] (Include if required.)

[If exceeding plan dose or quantity limits: state limit, requested amount, and clinical justification] (Include only if applicable.)

Safety and Monitoring Plan

• Baseline screening: [Tests completed or ordered with dates/results]
• Ongoing monitoring: [Parameters and intervals]
• Patient counseling: [Key warning symptoms and actions reviewed]
• Criteria for adjustment or discontinuation: [Thresholds and decision points]

Appeal Response

(Include this section only when responding to a denial.)

Denial date: [MM/DD/YYYY]; Denial reason(s): [Quote or paraphrase each reason]

• Response to Reason 1: [Rebuttal citing specific evidence from sections above]
• Response to Reason 2: [Rebuttal]
• (Add additional responses as needed.)

New evidence since denial: [Updated labs, new adverse reaction, hospitalization, additional documentation with dates] (Include if applicable.)

Requested outcome: [Approval for requested medication/regimen]; Peer-to-peer availability: [Direct contact and availability]

Supporting Documentation

• [Clinic notes (date) — relevance]
• [Laboratory/imaging reports (date) — relevance]
• [Medication records or pharmacy fill history (date) — relevance]
• [Allergy documentation (date) — relevance]
• [Guideline excerpts (organization, year) — relevance]
• [Denial letter (date)] (Include if appealing.)

Closing

[Brief request for approval and offer to provide additional information or participate in peer-to-peer review]

Sincerely,

[Prescriber signature]

[Printed name, credentials]

[NPI]

[Date signed]