openapi: 3.1.0
info:
  title: Cigna Drug Formulary Bulk Data Practitioner 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: Practitioner
paths:
  /metadata:
    get:
      operationId: getCapabilityStatement
      summary: Retrieve the FHIR capability statement
      tags:
      - Practitioner
      responses:
        '200':
          description: FHIR CapabilityStatement
  /Practitioner:
    get:
      operationId: searchPractitioner
      summary: Search practitioners in the Cigna network
      tags:
      - Practitioner
      parameters:
      - name: name
        in: query
        schema:
          type: string
      - name: identifier
        in: query
        schema:
          type: string
      responses:
        '200':
          description: FHIR Bundle of Practitioner resources
externalDocs:
  description: Cigna Service APIs
  url: https://developer.cigna.com/docs/service-apis