openapi: 3.1.0
info:
  title: Orion Health FHIR Alerts Notifications API
  description: The Orion Health FHIR API provides standards-based access to healthcare data using the HL7 FHIR (Fast Healthcare Interoperability Resources) specification. It enables healthcare organizations to read, search, create, and update clinical resources including patients, encounters, observations, conditions, medications, allergies, procedures, diagnostic reports, and care plans. The API conforms to FHIR R4 (v4.0.1) and supports both JSON and XML representations.
  version: 1.0.0
  contact:
    name: Orion Health API Support
    email: apisupport@orionhealth.com
    url: https://www.orionhealth.com/support
  license:
    name: Proprietary
    url: https://www.orionhealth.com/terms-of-service
  termsOfService: https://www.orionhealth.com/terms-of-service
servers:
- url: https://api.orionhealth.com/fhir
  description: Production FHIR Server
- url: https://sandbox.orionhealth.com/fhir
  description: Sandbox FHIR Server
security:
- oauth2: []
- bearerAuth: []
tags:
- name: Notifications
  description: Admission, discharge, and transfer notifications
paths:
  /notifications:
    get:
      operationId: listNotifications
      summary: Orion Health List ADT notifications
      description: Retrieve admission, discharge, and transfer (ADT) notifications for subscribed patients and organizations.
      tags:
      - Notifications
      parameters:
      - name: patientId
        in: query
        schema:
          type: string
      - name: type
        in: query
        schema:
          type: string
          enum:
          - admission
          - discharge
          - transfer
          - registration
      - name: organization
        in: query
        schema:
          type: string
      - name: dateFrom
        in: query
        schema:
          type: string
          format: date-time
      - name: dateTo
        in: query
        schema:
          type: string
          format: date-time
      - name: status
        in: query
        schema:
          type: string
          enum:
          - pending
          - delivered
          - read
          - failed
      - $ref: '#/components/parameters/PageOffset'
      - $ref: '#/components/parameters/PageLimit'
      responses:
        '200':
          description: List of notifications
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Notification'
                  pagination:
                    $ref: '#/components/schemas/Pagination'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /notifications/subscriptions:
    get:
      operationId: listNotificationSubscriptions
      summary: Orion Health List notification subscriptions
      description: Retrieve current ADT notification subscriptions.
      tags:
      - Notifications
      responses:
        '200':
          description: List of subscriptions
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/NotificationSubscription'
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      operationId: createNotificationSubscription
      summary: Orion Health Create a notification subscription
      description: Subscribe to ADT notifications for specific patients, organizations, or event types.
      tags:
      - Notifications
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/NotificationSubscriptionCreate'
      responses:
        '201':
          description: Subscription created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/NotificationSubscription'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    NotificationSubscriptionCreate:
      type: object
      required:
      - eventTypes
      - callbackUrl
      properties:
        eventTypes:
          type: array
          items:
            type: string
            enum:
            - admission
            - discharge
            - transfer
            - registration
        patientIds:
          type: array
          items:
            type: string
        sourceOrganizations:
          type: array
          items:
            type: string
        callbackUrl:
          type: string
          format: uri
    Error:
      type: object
      properties:
        code:
          type: string
        message:
          type: string
        details:
          type: array
          items:
            type: object
            properties:
              field:
                type: string
              message:
                type: string
    Notification:
      type: object
      properties:
        id:
          type: string
          format: uuid
        type:
          type: string
          enum:
          - admission
          - discharge
          - transfer
          - registration
        patientId:
          type: string
        patientName:
          type: string
        sourceOrganization:
          type: string
        sourceOrganizationName:
          type: string
        facility:
          type: string
        eventDate:
          type: string
          format: date-time
        status:
          type: string
          enum:
          - pending
          - delivered
          - read
          - failed
        details:
          type: object
          properties:
            admitReason:
              type: string
            dischargeDisposition:
              type: string
            attendingProvider:
              type: string
            department:
              type: string
        createdAt:
          type: string
          format: date-time
    NotificationSubscription:
      type: object
      properties:
        id:
          type: string
          format: uuid
        eventTypes:
          type: array
          items:
            type: string
            enum:
            - admission
            - discharge
            - transfer
            - registration
        patientIds:
          type: array
          items:
            type: string
          description: Specific patient IDs to monitor (empty means all)
        sourceOrganizations:
          type: array
          items:
            type: string
        callbackUrl:
          type: string
          format: uri
        status:
          type: string
          enum:
          - active
          - paused
          - disabled
        createdAt:
          type: string
          format: date-time
    Pagination:
      type: object
      properties:
        offset:
          type: integer
        limit:
          type: integer
        total:
          type: integer
        hasMore:
          type: boolean
  parameters:
    PageLimit:
      name: limit
      in: query
      description: Maximum number of items to return
      schema:
        type: integer
        minimum: 1
        maximum: 100
        default: 20
    PageOffset:
      name: offset
      in: query
      description: Number of items to skip
      schema:
        type: integer
        minimum: 0
        default: 0
  responses:
    BadRequest:
      description: Invalid request parameters
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Authentication required
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    oauth2:
      type: oauth2
      description: OAuth 2.0 authorization using SMART on FHIR
      flows:
        authorizationCode:
          authorizationUrl: https://auth.orionhealth.com/oauth2/authorize
          tokenUrl: https://auth.orionhealth.com/oauth2/token
          scopes:
            patient/*.read: Read access to all patient data
            patient/*.write: Write access to all patient data
            patient/Patient.read: Read access to Patient resources
            patient/Observation.read: Read access to Observation resources
            patient/Condition.read: Read access to Condition resources
            patient/MedicationRequest.read: Read access to MedicationRequest resources
            launch: Launch context
            openid: OpenID Connect
            fhirUser: FHIR user identity
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT