> ## Documentation Index > Fetch the complete documentation index at: https://docs.scan.com/llms.txt > Use this file to discover all available pages before exploring further. # Lists case managers on a referral > Returns every case manager on a referral that belongs to the authenticated group, oldest first. Case managers are not included on the referral payload. A referral another group can see only because it is the billing company is not available here. ## OpenAPI ````yaml /openapi.yaml get /api/v2/referrals/{referral_id}/case_managers openapi: 3.1.0 info: title: Scan.com API version: v2 description: >- The Scan.com Partner API creates imaging referrals, schedules visits, and returns radiology reports. servers: - url: https://api.staging.scan.com description: Sandbox - url: https://api.scan.com description: Production security: - BearerAuth: [] tags: - name: Courier SSO description: >- Mint a one-time Courier portal SSO URL with the same Bearer token used for the rest of the API. - name: Webhooks description: >- Outbound HTTP POST notifications sent to your api_credentials.webhook_url when visit or notification status changes. Configure api_credentials on your LawFirm, Practice, CoordinationGroup, Insurance, Employer, or NurseCaseManagementGroup. - name: Order Documents description: >- Retrieve radiology report PDFs, DICOM imaging, and invoices for orders visible to the authenticated group. - name: Locations description: >- Search imaging centers near an address, or rank them for a referral after medical safety answers are on file. Partners submit a preferred center; Scan books the visit. - name: Testing description: Staging-only fixture bootstrap, status advancement, and test webhooks. - name: FHIR description: >- Opt-in FHIR R4 read shapes for DiagnosticReport and ImagingStudy. Not a FHIR server. paths: /api/v2/referrals/{referral_id}/case_managers: get: tags: - Referrals summary: Lists case managers on a referral description: > Returns every case manager on a referral that belongs to the authenticated group, oldest first. Case managers are not included on the referral payload. A referral another group can see only because it is the billing company is not available here. operationId: listReferralCaseManagers parameters: - name: referral_id in: path required: true description: Referral ID schema: type: string format: uuid responses: '200': description: Case managers on the referral content: application/json: schema: type: object required: - case_managers properties: case_managers: type: array items: $ref: '#/components/schemas/CaseManager' '401': $ref: '#/components/responses/Unauthorized' '404': $ref: '#/components/responses/NotFound' '429': $ref: '#/components/responses/TooManyRequests' '500': $ref: '#/components/responses/InternalServerError' security: - BearerAuth: [] components: schemas: CaseManager: type: object description: A case manager contact on a referral required: - id - name - emails - phone_numbers - status_email - co_sign_emails properties: id: type: string format: uuid name: type: string example: Ada Lovelace emails: type: array minItems: 1 items: type: string format: email description: At least one valid email is required phone_numbers: type: array items: type: string description: Stored as digits only example: - '6135551234' status_email: type: boolean description: >- When true, Scan emails this case manager about case status. Defaults to true. co_sign_emails: type: boolean description: >- When true, Scan emails this case manager for co-sign. Defaults to false. ErrorResponse: type: object properties: error: type: string message: type: string type: type: string example: validation_error code: type: string example: unprocessable_entity request_id: type: string documentation_url: type: string errors: type: array items: type: string required: - error - message - type - code responses: Unauthorized: description: Missing, expired, or wrong-environment token headers: X-Request-Id: $ref: '#/components/headers/RequestId' content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: unauthorized: value: error: Unauthorized message: Unauthorized type: authentication_error code: unauthorized request_id: abc-123 documentation_url: https://docs.scan.com/guides/errors#unauthorized expired: value: error: API token expired message: API token expired type: authentication_error code: api_token_expired request_id: abc-123 documentation_url: https://docs.scan.com/guides/errors#api_token_expired NotFound: description: Resource not found or not accessible to this account headers: X-Request-Id: $ref: '#/components/headers/RequestId' content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: Referral not found message: Referral not found type: not_found_error code: not_found request_id: abc-123 documentation_url: https://docs.scan.com/guides/errors#not_found TooManyRequests: description: Sandbox request allowance exhausted headers: X-Request-Id: $ref: '#/components/headers/RequestId' content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: Sandbox request limit reached message: Sandbox request limit reached type: rate_limit_error code: sandbox_request_limit_reached request_id: abc-123 documentation_url: https://docs.scan.com/guides/errors#sandbox_request_limit_reached InternalServerError: description: Unexpected internal error headers: X-Request-Id: $ref: '#/components/headers/RequestId' content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: Internal server error message: Internal server error type: api_error code: internal_error request_id: abc-123 documentation_url: https://docs.scan.com/guides/errors#internal_error headers: RequestId: description: Correlate this response with Scan support. schema: type: string securitySchemes: BearerAuth: type: http scheme: bearer description: > `Authorization: Bearer `. Reuse the same token on later requests until it expires or is revoked. Do not request a new token for each call. The token does not expire after 24 hours. Sandbox tokens come from Get API keys and allow 2,000 successful requests or 7 days, or 90 days with an access code. Failed 4xx/5xx responses do not consume the allowance. Production tokens are issued from the group's API access tab and last until the expiry set there, or until revoked when no expiry is set. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.