Optum

Optum Determination API

The Determination API from Optum — 2 operation(s) for determination.

GitHub OpenAPI
Business capability
Eligibility & Benefits Verification BC-2800.30

Operations 2

POST /determination/x12 278x215 Prior Authorization Determination
POST /determination JSON Prior Authorization Determination

Documentation

📖
APIReference
https://developer.optum.com/eligibilityandclaims/reference/api-overview
📖
GettingStarted
https://developer.optum.com/eligibilityandclaims/docs/get-started-with-optum-api
📖
Authentication
https://developer.optum.com/eligibilityandclaims/docs/optum-security-and-authorization
📖
APIReference
https://developer.optum.com/optumreal-dental/reference/overview-real-dental
📖
GettingStarted
https://developer.optum.com/optumreal-dental/reference/get-started
📖
APIReference
https://developer.optum.com/pharmacysolutions/reference
📖
APIReference
https://developer.optum.com/paymentandreimbursement/reference
📖
APIReference
https://developer.optum.com/platformandinteroperability/reference
📖
APIReference
https://developer.optum.com/analyticsandinsights/reference
📖
APIReference
https://developer.optum.com/apitools/reference/security-and-authorization-v2-overview
📖
Documentation
https://developer.optum.com/apitools/docs/getting-started

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/optum/refs/heads/main/openapi/optum-determination-api-openapi.yml

Other Resources

🔗
ChangeLog
https://developer.optum.com/eligibilityandclaims/docs/eligibility-release-notes

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OpenAPI Specification

optum-determination-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Prior Authorization v1 Determination API
  description: ''
  version: 1.1.0
  contact:
    email: ''
servers:
- url: https://sandbox-apigw.optum.com/rcm/prior-authorization/v1/
- url: /processor
security:
- bearerAuth: []
tags:
- name: Determination
paths:
  /determination/x12:
    post:
      summary: 278x215 Prior Authorization Determination
      description: Prior authorization determination using 278x215 requests
      tags:
      - Determination
      parameters:
      - $ref: '#/components/parameters/x-optum-tenant-id'
      - $ref: '#/components/parameters/x-optum-correlation-id'
      requestBody:
        description: Authorization request
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/DeterminationX12Request'
      responses:
        '200':
          description: Success
          headers:
            x-amzn-trace-id:
              $ref: '#/components/headers/x-amzn-trace-id'
            transaction-id:
              $ref: '#/components/headers/transaction-id'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DeterminationResponse'
        '400':
          $ref: '#/components/responses/400'
        '401':
          $ref: '#/components/responses/401'
        '403':
          $ref: '#/components/responses/403'
        '500':
          $ref: '#/components/responses/500'
  /determination:
    post:
      summary: JSON Prior Authorization Determination
      description: Prior authorization determination using JSON requests
      tags:
      - Determination
      parameters:
      - $ref: '#/components/parameters/x-optum-tenant-id'
      - $ref: '#/components/parameters/x-optum-correlation-id'
      requestBody:
        description: Determination request
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InquiryJSONRequestWithDetermination'
            examples:
              subscriber:
                $ref: '#/components/examples/UserInquiryRequestSubscriberWithDetermination'
              dependent:
                $ref: '#/components/examples/UserInquiryRequestDependentWithDetermination'
      responses:
        '200':
          description: Success
          headers:
            x-amzn-trace-id:
              $ref: '#/components/headers/x-amzn-trace-id'
            transaction-id:
              $ref: '#/components/headers/transaction-id'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DeterminationResponse'
        '400':
          $ref: '#/components/responses/400'
        '401':
          $ref: '#/components/responses/401'
        '403':
          $ref: '#/components/responses/403'
        '500':
          $ref: '#/components/responses/500'
components:
  headers:
    transaction-id:
      description: Transaction Id of the request
      required: true
      schema:
        type: string
        format: uuid
        example: c9476bc2-b563-4555-9527-4afe9dccaf9a
    x-amzn-trace-id:
      description: Generated traceId of the request
      required: true
      example: Root=1-61d7441a-56e4c77350687b5230e5707
      schema:
        type: string
  schemas:
    InquiryJSONRequestWithDetermination:
      allOf:
      - $ref: '#/components/schemas/InquiryJSONRequest'
      - type: object
        properties:
          rhPayerId:
            type: string
            description: Global payer identifier used for determination
            example: UHCDEMODV1
          planId:
            type: string
            description: Payer plan identifier used for determination
            example: '41'
    AuthorizationJSONResponse:
      type: object
      properties:
        requestValidation:
          type: array
          items:
            $ref: '#/components/schemas/AuthorizationJSONResponseRequestValidation'
        submitterTransactionIdentifier:
          type: string
        payerId:
          type: string
        payerName:
          type: string
        umClearingHouseId:
          type: string
        contactName:
          type: string
        contactElectronicMail:
          type: string
        contactFacsimile:
          type: string
        contactTelephone:
          type: string
        contactTelephoneExtension:
          type: string
        contactUrl:
          type: string
        umRequestValidation:
          type: array
          items:
            $ref: '#/components/schemas/AuthorizationJSONResponseRequestValidation'
        requester:
          $ref: '#/components/schemas/AuthorizationJSONResponseRequester'
        subscriber:
          $ref: '#/components/schemas/AuthorizationJSONResponseSubscriber'
        dependent:
          $ref: '#/components/schemas/AuthorizationJSONResponseDependent'
        patientEventDetail:
          $ref: '#/components/schemas/AuthorizationJSONResponsePatientEventDetail'
    AuthorizationJSONResponsePatientEventDetail:
      type: object
      properties:
        dependentRequestValidation:
          type: array
          items:
            $ref: '#/components/schemas/AuthorizationJSONResponseRequestValidation'
        requestCategoryCode:
          type: string
        certificationTypeCode:
          type: string
        serviceTypeCode:
          type: string
        facilityTypeCode:
          type: string
        facilityCodeQualifier:
          type: string
        certificationActionCode:
          type: string
        reviewIdentificationNumber:
          type: string
        reviewDecisionReasonCode:
          type: string
        secondSurgicalOpinionIndicator:
          type: string
        previousReviewAuthorizationNumber:
          type: string
        previousAdministrativeReferenceNumber:
          type: string
        eventDateBegin:
          type: string
        eventDateEnd:
          type: string
        admissionDateBegin:
          type: string
        admissionDateEnd:
          type: string
        dischargeDate:
          type: string
        certificationIssueDate:
          type: string
        certificationExpirationDate:
          type: string
        certificationEffectiveDateBegin:
          type: string
        certificationEffectiveDateEnd:
          type: string
        healthCareServicesReviewRequestDateBegin:
          type: string
        healthCareServicesReviewRequestDateEnd:
          type: string
        diagnosisTypeCode:
          type: string
        diagnosisCode:
          type: string
        quantityQualifier:
          type: string
        serviceUnitCount:
          type: string
        unitOrBasisForMeasurementCode:
          type: string
        sampleSelectionModulus:
          type: string
        timePeriodQualifier:
          type: string
        periodCount:
          type: string
        deliveryFrequencyCode:
          type: string
        deliveryPatternTimeCode:
          type: string
        institutionalAdmissionTypeCode:
          type: string
        institutionalAdmissionSourceCode:
          type: string
        institutionalPatientStatusCode:
          type: string
        ambulanceTransportCode:
          type: string
        ambulanceUnitOrBasisForMeasurementCode:
          type: string
        ambulanceTransportDistance:
          type: string
        spinalManipulationTreatmentSeriesNumber:
          type: string
        spinalManipulationTreatmentCount:
          type: string
        spinalManipulationSubluxationLevelCode:
          type: string
        spinalManipulationSubluxationLevelCode2:
          type: string
        oxygenEquipmentTypeCode:
          type: string
        oxygenEquipmentTypeCode2:
          type: string
        oxygenFlowRate:
          type: string
        dailyOxygenUseCount:
          type: string
        oxygenUsePeriodHourCount:
          type: string
        respiratoryTherapistOrderText:
          type: string
        portableOxygenSystemFlowRate:
          type: string
        oxygenDeliverySystemCode:
          type: string
        oxygenSystemTypeCode:
          type: string
        homeHealthPrognosisCode:
          type: string
        homeHealthStartDate:
          type: string
        homeHealthCertificationPeriod:
          type: string
        homeHealthMedicareCoverageIndicator:
          type: string
        homeHealthCertificationTypeCode:
          type: string
        freeFormMessageText:
          type: string
        patientEventProviderName:
          type: array
          items:
            $ref: '#/components/schemas/AuthorizationJSONResponsePatientEventProviderName'
        patientEventTransportInformation:
          type: array
          items:
            $ref: '#/components/schemas/AuthorizationJSONResponsePatientEventTransportInformation'
        serviceLevel:
          type: array
          items:
            $ref: '#/components/schemas/AuthorizationJSONResponseServiceLevel'
    AuthorizationJSONResponsePatientEventTransportInformation:
      type: object
      properties:
        entityIdentifierCode:
          type: string
        organizationName:
          type: string
        address1:
          type: string
        address2:
          type: string
        city:
          type: string
        state:
          type: string
        postalCode:
          type: string
    AuthorizationJSONResponseRequestValidation:
      type: object
      properties:
        responseCode:
          type: string
        rejectReasonCode:
          type: string
        followupActionCode:
          type: string
    AuthorizationJSONResponseIonalService:
      type: object
      properties:
        serviceLineRevenueCode:
          type: string
        productOrServiceIDQualifier:
          type: string
        procedureCode:
          type: string
        procedureModifier:
          type: string
        procedureModifier2:
          type: string
        procedureModifier3:
          type: string
        procedureModifier4:
          type: string
        procedureCodeDescription:
          type: string
        procedureCode2:
          type: string
        serviceLineAmount:
          type: string
        unitOrBasisForMeasurementCode:
          type: string
        serviceUnitCount:
          type: string
        serviceLineRate:
          type: string
        epsdtIndicator:
          type: string
    AuthorizationJSONResponsePatientEventProviderName:
      type: object
      properties:
        patientEventProviderRequestValidation:
          type: array
          items:
            $ref: '#/components/schemas/AuthorizationJSONResponseRequestValidation'
        entityIdentifierCode:
          type: string
        organizationName:
          type: string
        lastName:
          type: string
        firstName:
          type: string
        middleName:
          type: string
        namePrefix:
          type: string
        nameSuffix:
          type: string
        identificationCodeQualifier:
          type: string
        identifier:
          type: string
        address1:
          type: string
        address2:
          type: string
        city:
          type: string
        state:
          type: string
        postalCode:
          type: string
        countryCode:
          type: string
        countrySubDivisionCode:
          type: string
        providerSupplementalInformation:
          $ref: '#/components/schemas/AuthorizationJSONResponseProviderSupplementalInformation'
        contactName:
          type: string
        contactElectronicMail:
          type: string
        contactFacsimile:
          type: string
        contactTelephone:
          type: string
        contactTelephoneExtension:
          type: string
        contactUrl:
          type: string
        providerCode:
          type: string
        providerTaxonomyCode:
          type: string
    AuthorizationJSONResponseDependent:
      type: object
      properties:
        dependentRequestValidation:
          type: array
          items:
            $ref: '#/components/schemas/AuthorizationJSONResponseRequestValidation'
        lastName:
          type: string
        firstName:
          type: string
        middleName:
          type: string
        suffix:
          type: string
        dateOfBirth:
          type: string
        address1:
          type: string
        address2:
          type: string
        city:
          type: string
        state:
          type: string
        postalCode:
          type: string
        countryCode:
          type: string
        countrySubDivisionCode:
          type: string
        supplementalIdentification:
          $ref: '#/components/schemas/AuthorizationJSONResponseDependentSupplementalIdentification'
    InquiryJSONRequest:
      type: object
      properties:
        senderId:
          type: string
        submitterTransactionIdentifier:
          type: string
        payerId:
          type: string
        payerName:
          type: string
        umClearingHouseId:
          type: string
        requester:
          type: object
          properties:
            requesterType:
              type: string
            organizationName:
              type: string
            lastName:
              type: string
            firstName:
              type: string
            requesterIdentification:
              type: object
              properties:
                providerUpinNumber:
                  type: string
                facilityIdNumber:
                  type: string
                employerIdentificationNumber:
                  type: string
                providerSiteNumber:
                  type: string
                providerPlanNetworkIdNumber:
                  type: string
                facilityNetworkIdNumber:
                  type: string
                socialSecurityNumber:
                  type: string
                federalTaxpayerIdentificationNumber:
                  type: string
                carrierAssignedReferenceNumber:
                  type: string
            address1:
              type: string
            address2:
              type: string
            city:
              type: string
            state:
              type: string
            postalCode:
              type: string
            countryCode:
              type: string
            countrySubDivisionCode:
              type: string
            npi:
              type: string
            payorId:
              type: string
            ssn:
              type: string
            servicesPlanID:
              type: string
            employersId:
              type: string
            etin:
              type: string
            contactName:
              type: string
            contactElectronicMail:
              type: string
            contactFacsimile:
              type: string
            contactTelephone:
              type: string
            contactTelephoneExtension:
              type: string
            providerCode:
              type: string
            referenceIdentification:
              type: string
        subscriber:
          type: object
          properties:
            lastName:
              type: string
            firstName:
              type: string
            middleName:
              type: string
            suffix:
              type: string
            memberId:
              type: string
            dateOfBirth:
              type: string
            supplementalIdentification:
              type: object
              properties:
                policyNumber:
                  type: string
                branchIdentifier:
                  type: string
                groupNumber:
                  type: string
                departmentNumber:
                  type: string
                patientAccountNumber:
                  type: string
                healthInsuranceClaimNumber:
                  type: string
                idCard:
                  type: string
                insurancePolicyNumber:
                  type: string
                planNetworkIdentificationNumber:
                  type: string
                medicaidRecipientIdentificationNumber:
                  type: string
                ssn:
                  type: string
        dependent:
          type: object
          properties:
            lastName:
              type: string
            firstName:
              type: string
            middleName:
              type: string
            suffix:
              type: string
            dateOfBirth:
              type: string
            supplementalIdentification:
              type: object
              properties:
                employeeIdentificationNumber:
                  type: string
                patientAccountNumber:
                  type: string
                ssn:
                  type: string
        patientEventDetail:
          type: object
          properties:
            requestCategoryCode:
              type: string
            certificationTypeCode:
              type: string
            serviceTypeCode:
              type: string
            facilityTypeCode:
              type: string
            facilityCodeQualifier:
              type: string
            certificationActionCode:
              type: string
            previousReviewAuthorizationNumber:
              type: string
            previousAdministrativeReferenceNumber:
              type: string
            accidentDate:
              type: string
            eventDateBegin:
              type: string
            eventDateEnd:
              type: string
            admissionDateBegin:
              type: string
            admissionDateEnd:
              type: string
            dischargeDate:
              type: string
            certificationIssueDateBegin:
              type: string
            certificationIssueDateEnd:
              type: string
            certificationExpirationDateBegin:
              type: string
            certificationExpirationDateEnd:
              type: string
            certificationEffectiveDateBegin:
              type: string
            certificationEffectiveDateEnd:
              type: string
            healthCareServicesReviewRequestDate:
              type: string
            diagnosisTypeCode:
              type: string
            diagnosisCode:
              type: string
            patientEventProviderName:
              type: array
              items:
                type: object
                properties:
                  entityIdentifierCode:
                    type: string
                  organizationName:
                    type: string
                  lastName:
                    type: string
                  firstName:
                    type: string
                  middleName:
                    type: string
                  namePrefix:
                    type: string
                  nameSuffix:
                    type: string
                  identificationCodeQualifier:
                    type: string
                  identifier:
                    type: string
                  address1:
                    type: string
                  address2:
                    type: string
                  city:
                    type: string
                  state:
                    type: string
                  postalCode:
                    type: string
                  countryCode:
                    type: string
                  countrySubDivisionCode:
                    type: string
                  providerSupplementalInformation:
                    type: object
                    properties:
                      stateLicenseNumber:
                        type: string
                      licenseNumberStateCode:
                        type: string
                      providerUpinNumber:
                        type: string
                      facilityIdNumber:
                        type: string
                      employersIdentificationNumber:
                        type: string
                      providerPlanNetworkIdentificationNumber:
                        type: string
                      facilityNetworkIdentificationNumber:
                        type: string
                      ssn:
                        type: string
                      carrierAssignedReferenceNumber:
                        type: string
                  providerCode:
                    type: string
                  providerTaxonomyCode:
                    type: string
            serviceLevel:
              type: array
              items:
                type: object
                properties:
                  requestCategoryCode:
                    type: string
                  certificationTypeCode:
                    type: string
                  serviceTypeCode:
                    type: string
                  facilityTypeCode:
                    type: string
                  facilityCodeQualifier:
                    type: string
                  certificationActionCode:
                    type: string
                  previousReviewAuthorizationNumber:
                    type: string
                  previousAdministrativeReferenceNumber:
                    type: string
                  serviceDateBegin:
                    type: string
                  serviceDateEnd:
                    type: string
                  certificationIssueDateBegin:
                    type: string
                  certificationIssueDateEnd:
                    type: string
                  certificationExpirationDateBegin:
                    type: string
                  certificationExpirationDateEnd:
                    type: string
                  certificationEffectiveDateBegin:
                    type: string
                  certificationEffectiveDateEnd:
                    type: string
                  professionalService:
                    type: object
                    properties:
                      productOrServiceIDQualifier:
                        type: string
                      procedureCode:
                        type: string
                      procedureCode2:
                        type: string
                      unitOrBasisForMeasurementCode:
                        type: string
                      serviceUnitCount:
                        type: string
                  institutionalService:
                    type: object
                    properties:
                      serviceLineRevenueCode:
                        type: string
                      productOrServiceIDQualifier:
                        type: string
                      procedureCode:
                        type: string
                      procedureCode2:
                        type: string
                      unitOrBasisForMeasurementCode:
                        type: string
                      serviceUnitCount:
                        type: string
                  dentalService:
                    type: object
                    properties:
                      procedureCode:
                        type: string
                      procedureCode2:
                        type: string
                      americanDentalAssociationCodes:
                        type: string
                      prosthesisCrownOrInlayCode:
                        type: string
                      serviceUnitCount:
                        type: string
                  toothInformation:
                    type: object
                    properties:
                      toothCode:
                        type: string
                      toothSurfaceCode:
                        type: string
                  serviceProviderName:
                    type: array
                    items:
                      type: object
                      properties:
                        entityIdentifierCode:
                          type: string
                        organizationName:
                          type: string
                        lastName:
                          type: string
                        firstName:
                          type: string
                        middleName:
                          type: string
                        namePrefix:
                          type: string
                        nameSuffix:
                          type: string
                        identificationCodeQualifier:
                          type: string
                        identifier:
                          type: string
                        address1:
                          type: string
                        address2:
                          type: string
                        city:
                          type: string
                        state:
                          type: string
                        postalCode:
                          type: string
                        countryCode:
                          type: string
                        countrySubDivisionCode:
                          type: string
                        providerSupplementalInformation:
                          type: object
                          properties:
                            stateLicenseNumber:
                              type: string
                            licenseNumberStateCode:
                              type: string
                            providerUpinNumber:
                              type: string
                            facilityIdNumber:
                              type: string
                            employersIdentificationNumber:
                              type: string
                            providerSiteNumber:
                              type: string
                            providerPlanNetworkIdentificationNumber:
                              type: string
                            facilityNetworkIdentificationNumber:
                              type: string
                            ssn:
                              type: string
                            carrierAssignedReferenceNumber:
                              type: string
                        providerCode:
                          type: string
                        providerTaxonomyCode:
                          type: string
    AuthorizationJSONResponseDependentSupplementalIdentification:
      type: object
      additionalProperties: false
      properties:
        employeeIdentificationNumber:
          type: string
        patientAccountNumber:
          type: string
        ssn:
          type: string
    AuthorizationJSONResponseServiceLevel:
      type: object
      properties:
        serviceRequestValidation:
          type: array
          items:
            $ref: '#/components/schemas/AuthorizationJSONResponseRequestValidation'
        requestCategoryCode:
          type: string
        certificationTypeCode:
          type: string
        serviceTypeCode:
          type: string
        facilityTypeCode:
          type: string
        facilityCodeQualifier:
          type: string
        certificationActionCode:
          type: string
        reviewIdentificationNumber:
          type: string
        reviewDecisionReasonCode:
          type: string
        secondSurgicalOpinionIndicator:
          type: string
        previousReviewAuthorizationNumber:
          type: string
        previousAdministrativeReferenceNumber:
          type: string
        serviceDateBegin:
          type: string
        serviceDateEnd:
          type: string
        certificationIssueDate:
          type: string
        certificationExpirationDate:
          type: string
        certificationEffectiveDateBegin:
          type: string
        certificationEffectiveDateEnd:
          type: string
        professionalService:
          $ref: '#/components/schemas/AuthorizationJSONResponseIonalService'
        institutionalService:
          $ref: '#/components/schemas/AuthorizationJSONResponseIonalService'
        dentalService:
          $ref: '#/components/schemas/AuthorizationJSONResponseDentalService'
        toothInformation:
          type: array
          items:
            $ref: '#/components/schemas/AuthorizationJSONResponseToothInformation'
        quantityQualifier:
          type: string
        serviceUnitCount:
          type: string
        unitOrBasisForMeasurementCode:
          type: string
        sampleSelectionModulus:
          type: string
        timePeriodQualifier:
          type: string
        periodCount:
          type: string
        deliveryFrequencyCode:
          type: string
        deliveryPatternTimeCode:
          type: string
        freeFormMessageText:
          type: string
        serviceProviderName:
          type: array
          items:
            $ref: '#/components/schemas/AuthorizationJSONResponseServiceProviderName'
    AuthorizationJSONResponseRequesterIdentification:
      type: object
      properties:
        providerUpinNumber:
          type: string
        facilityIdNumber:
          type: string
        employerIdentificationNumber:
          type: string
        providerSiteNumber:
          type: string
        providerPlanNetworkIdNumber:
          type: string
        facilityNetworkIdNumber:
          type: string
        socialSecurityNumber:
          type: string
        carrierAssignedReferenceNumber:
          type: string
    AuthorizationJSONResponseRequester:
      type: object
      properties:
        requesterRequestValidation:
          type: array
          items:
            $ref: '#/components/schemas/AuthorizationJSONResponseRequestValidation'
        requesterType:
          type: string
        organizationName:
          type: string
        lastName:
          type: string
        firstName:
          type: string
        requesterIdentification:
          $ref: '#/components/schemas/AuthorizationJSONResponseRequesterIdentification'
        npi:
          type: string
        payorId:
          type: string
        ssn:
          type: string
        servicesPlanID:
          type: string
        employersId:
          type: string
        etin:
          type: string
        providerCode:
          type: string
        referenceIdentification:
          type: string
    DeterminationResponse:
      type: object
      properties:
        determination:
          type: object
          properties:
            x12:
              type: string
            json:
              $ref: '#/components/schemas/AuthorizationJSONResponse'
    AuthorizationJSONResponseProviderSupplementalInformation:
      type: object
      properties:
        stateLicenseNumber:
          type: string
        licenseNumberStateCode:
          type: string
        providerUpinNumber:
          type: string
        facilityIdNumber:
          type: string
        employersIdentificationNumber:
          type: string
        providerPlanNetworkIdentificationNumber:
          type: string
        facilityNetworkIdentificationNumber:
          type: string
        ssn:
          type: string
        carrierAssignedReferenceNumber:
          type: string
        providerSiteNumber:
          type: string
    AuthorizationJSONResponseDentalService:
      type: object
      properties:
        procedureCode:
          type: string
        procedureModifier:
          type: string
        procedureModifier2:
          type: string
        procedureModifier3:
          type: string
        procedureModifier4:
          type: string
        procedureCodeDescription:
          type: string
        procedureCode2:
          type: string
        serviceLineAmount:
          type: string
        americanDentalAssociationCodes:
          type: string
        americanDentalAssociationCodes2:
          type: string
        americanDentalAssociationCodes3:
          type: string
        americanDentalAssociationCodes4:
          type: string
        americanDentalAssociationCodes5:
          type: string
        prosthesisCrownOrInlayCode:
          type: string
        serviceUnitCount:
          type: string
    Errors:
      type: array
      items:
        type: string
        example: This is an example error string
    AuthorizationJSONResponseSubscriberSupplementalIdentification:
      type: object
      properties:
        policyNumber:
          type: string
        branchIdentifier:
          type: string
        groupNumber:
          type: string
        departme

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# Full source: https://raw.githubusercontent.com/api-evangelist/optum/refs/heads/main/openapi/optum-determination-api-openapi.yml