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Insurer Playbook

Express Scripts (Pharmacy Benefit Manager)Denial patterns and how to appeal

Also known as: Express Scripts, ESI, Cigna Express Scripts, Evernorth, Accredo

Pharmacy Benefit (employer)Medicare Part DMedicaid PharmacySpecialty Pharmacy

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Known denial patterns

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Appeal best practices

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Points to check

Common Denial Patterns

  • Formulary denials pushing members to Express Scripts National Preferred Formulary alternatives
  • Step therapy requirements, especially for specialty and biologic medications
  • Prior authorization denials for high-cost specialty drugs through Accredo
  • Quantity limit denials based on proprietary dosing guidelines

Appeal Best Practices

  1. 1Request a formulary exception with prescriber clinical rationale
  2. 2Document all failed step therapy alternatives with dates, doses, outcomes, and adverse reactions
  3. 3For specialty drugs through Accredo, ensure the prescriber submits a complete clinical package
  4. 4For Medicare Part D, use CMS standardized exception and appeal processes
  5. 5Challenge quantity limits with clinical guidelines supporting prescribed dosing

Points to Check

  • Specialty pharmacy (Accredo) channel requirements can be challenged if alternatives are available
  • State PBM reform laws may limit step therapy and formulary restrictions
  • Medicare Part D exception timelines are CMS-mandated — enforce them

Contact & Response

Best Contact Method

Prescriber portal > Coverage Determination > Written appeal

Typical Response Time

Part D: exception or coverage request 72h standard / 24h expedited; redetermination 7 days standard / 72h expedited / 14 days for payment; 30 days (commercial)

Internal Criteria Used

  • Express Scripts National Preferred Formulary
  • ESI Clinical Programs
  • Step therapy protocols

General Tips

  • Express Scripts is owned by Cigna (Evernorth) — the second largest PBM in the US
  • Accredo is Express Scripts' specialty pharmacy arm for high-cost medications
  • Express Scripts maintains its own formulary and clinical programs separate from Cigna medical
  • For Medicare Part D, use the CMS Coverage Determination process
  • Express Scripts has National Preferred Formulary — check tier placement and exception options

Built for Express Scripts (Pharmacy Benefit Manager)

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Lysco uses Express Scripts (Pharmacy Benefit Manager)-specific intelligence — denial patterns, appeal best practices, and the right contact path — to identify weak points and draft your appeal.

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This is general guidance compiled by Lysco. Check it against your plan documents and the notice you received, which set the rules for your appeal. It does not constitute legal, medical, or financial advice. Individual results vary. Verify all information independently and consult qualified professionals before acting.