Cigna MedicationKnowledge API
The MedicationKnowledge API from Cigna — 1 operation(s) for medicationknowledge.
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OpenAPI Specification
openapi: 3.2.0
info:
title: Cigna Drug Formulary Medication Knowledge API
description: Public FHIR-based Drug Formulary API exposing Cigna's covered drug lists, formulary tiers, prior authorization, step therapy, and quantity limits. Implements the HL7 Da Vinci PDex US Drug Formulary IG required by the CMS Interoperability and Patient Access rule.
version: '1.0'
contact:
name: Cigna Developer Support
url: https://developer.cigna.com/support
servers:
- url: https://fhir.cigna.com/DrugFormulary/v1
description: Cigna Drug Formulary Production
tags:
- name: MedicationKnowledge
paths:
/MedicationKnowledge:
get:
operationId: searchMedicationKnowledge
summary: Search covered drugs and formulary tier, step therapy, and prior auth
tags:
- MedicationKnowledge
parameters:
- name: code
in: query
schema:
type: string
description: RxNorm or NDC code
- name: DrugPlan
in: query
schema:
type: string
description: InsurancePlan id of the formulary
responses:
'200':
description: FHIR Bundle of MedicationKnowledge resources
externalDocs:
description: Cigna Service APIs
url: https://developer.cigna.com/docs/service-apis