openapi: 3.2.0
info:
  title: Real Prior Authorization Dtr Capability Statement API
  description: FHIR Prior Authorization APIs (CDS, DTR, PAS)
  version: 1.0.0
servers:
- url: https://sandbox-apigw.optum.com
tags:
- name: DtrCapabilityStatement
paths:
  /oihub/fhirpriorauth/v1/fhirpa/R4/{payerId}/{lob}/dtr/metadata:
    get:
      operationId: getDtrCapabilityStatement
      tags:
      - DtrCapabilityStatement
      security:
      - oAuth:
        - read_healthcheck
      parameters:
      - name: payerId
        in: path
        required: true
        schema:
          type: string
          example: '87726'
      - name: lob
        in: path
        required: true
        schema:
          type: string
          example: ph
      - name: x-optum-consumer-correlation-id
        in: header
        schema:
          type: string
          example: uuid-123
      - name: environment
        in: header
        schema:
          type: string
          example: sandbox
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DtrCapabilityStatementResponse'
              example:
                resourceType: CapabilityStatement
                id: 13bed635-6cd2-47e6-9709-fdfefde25954
                text:
                  status: generated
                  div: <div xmlns="http://www.w3.org/1999/xhtml">uhcpp-paan-dtr-server</div>
                name: UHC PAAN FHIR Layer Exchange
                status: active
                date: '2026-04-23T16:34:56.081+00:00'
                publisher: UHC PAAN
                description: The CapabilityStatement resource documents the functionality implemented from the HL7® FHIR® standard
                kind: instance
                software:
                  name: uhcpp-paan-dtr-server
                  version: 8.8.0
                implementation:
                  description: uhcpp-paan-dtr-server implementation
                  url: https://apimarketplace-stg.uhc.com/PriorAuth/v1
                fhirVersion: 4.0.1
                format:
                - application/fhir+xml
                - xml
                - application/fhir+json
                - json
                - application/x-turtle
                - ttl
                rest:
                - mode: server
                  resource:
                  - type: OperationDefinition
                    profile: http://hl7.org/fhir/StructureDefinition/OperationDefinition
                    interaction:
                    - code: read
                    searchInclude:
                    - '*'
                  - type: Questionnaire
                    profile: http://hl7.org/fhir/StructureDefinition/Questionnaire
                    searchInclude:
                    - '*'
                    operation:
                    - name: questionnaire-package
                      definition: https://apimarketplace-stg.uhc.com/PriorAuth/v1/OperationDefinition/questionnaire-package
                    - name: next-question
                      definition: https://apimarketplace-stg.uhc.com/PriorAuth/v1/OperationDefinition/next-question
                    - name: document-reference
                      definition: https://apimarketplace-stg.uhc.com/PriorAuth/v1/OperationDefinition/document-reference
        '400':
          description: Bad Request
          content:
            application/json:
              example:
                message: Bad Request
                statusCode: 400
        '401':
          description: UnAuthorized
          content:
            application/json:
              example:
                message: UnAuthorized
                statusCode: 401
        '406':
          description: Not Acceptable
          content:
            application/json:
              example:
                message: Not Acceptable
                statusCode: 406
        '500':
          description: Internal Server Error
          content:
            application/json:
              example:
                message: Internal server error
                statusCode: 500
components:
  schemas:
    DtrCapabilityStatementResponse:
      type: object
      properties:
        resourceType:
          type: string
          example: CapabilityStatement
        id:
          type: string
          example: 13bed635-6cd2-47e6-9709-fdfefde25954
        text:
          $ref: '#/components/schemas/Narrative'
        name:
          type: string
          example: UHC PAAN FHIR Layer Exchange
        status:
          type: string
          example: active
        date:
          type: string
          format: date-time
          example: '2026-04-23T16:34:56.081+00:00'
        publisher:
          type: string
          example: UHC PAAN
        description:
          type: string
          example: The CapabilityStatement resource documents the functionality implemented from the HL7® FHIR® standard
        kind:
          type: string
          example: instance
        software:
          $ref: '#/components/schemas/CapabilityStatementSoftware'
        implementation:
          $ref: '#/components/schemas/CapabilityStatementImplementation'
        fhirVersion:
          type: string
          example: 4.0.1
        format:
          type: array
          items:
            type: string
          example:
          - application/fhir+xml
          - xml
          - application/fhir+json
          - json
          - application/x-turtle
          - ttl
        rest:
          type: array
          items:
            $ref: '#/components/schemas/CapabilityStatementRest'
    CapabilityStatementSoftware:
      type: object
      properties:
        name:
          type: string
          example: uhcpp-paan-pas-server
        version:
          type: string
          example: 8.8.0
    Narrative:
      type: object
      properties:
        status:
          type: string
          example: generated
        div:
          type: string
          example: <div xmlns="http://www.w3.org/1999/xhtml">Operation</div>
    CapabilityStatementImplementation:
      type: object
      properties:
        description:
          type: string
          example: uhcpp-paan-pas-server implementation
        url:
          type: string
          format: uri
          example: https://apimarketplace-stg.uhc.com/PriorAuth/v1
    CapabilityStatementRest:
      type: object
      properties:
        mode:
          type: string
          example: server
        resource:
          type: array
          items:
            $ref: '#/components/schemas/CapabilityStatementResource'
        operation:
          type: array
          items:
            $ref: '#/components/schemas/CapabilityStatementOperation'
    CapabilityStatementResource:
      type: object
      properties:
        type:
          type: string
          example: Claim
        profile:
          type: string
          format: uri
        searchInclude:
          type: array
          items:
            type: string
        interaction:
          type: array
          items:
            $ref: '#/components/schemas/CapabilityStatementInteraction'
        operation:
          type: array
          items:
            $ref: '#/components/schemas/CapabilityStatementOperation'
    CapabilityStatementInteraction:
      type: object
      properties:
        code:
          type: string
          example: read
    CapabilityStatementOperation:
      type: object
      properties:
        name:
          type: string
          example: submit
        definition:
          type: string
          format: uri
  securitySchemes:
    oAuth:
      type: oauth2
      description: This API uses OAuth 2 with the client_credentials grant flow.
      flows:
        clientCredentials:
          tokenUrl: /apip/auth/v2/token
          scopes:
            read_txn: read transactions
            create_txn: submit a new transaction request
            read_coveragediscovery: read coverage discovery tasks
            create_coveragediscovery: submit a new coverage discovery task
            read_healthcheck: check the status of the system
x-readme:
  explorer-enabled: true
  proxy-enabled: true