Optum Medical Network Eligibility and Claims API
RESTful JSON and native X12 EDI (270/271, 837P/837I, 276/277, 835) healthcare transaction APIs for real-time patient eligibility and coverage verification, enhanced eligibility with asynchronous coverage discovery, professional and institutional claim validation and submission, claim status inquiry, ERA and 277CA claim-response reports, prior authorization (X12 278), attachment submission/status/retrieval, and the payer directory with live payer outage data.
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
Specifications
OpenAPI
https://raw.githubusercontent.com/api-evangelist/optum/refs/heads/main/openapi/optum-dental-attachment-api-openapi.yml
OpenAPI
https://raw.githubusercontent.com/api-evangelist/optum/refs/heads/main/openapi/optum-enhanced-eligibility-api-openapi.yml
OpenAPI
https://raw.githubusercontent.com/api-evangelist/optum/refs/heads/main/openapi/optum-medical-network-attachment-retrieval-v1-openapi.yml
OpenAPI
https://raw.githubusercontent.com/api-evangelist/optum/refs/heads/main/openapi/optum-medical-network-attachment-status-v1-openapi.yml
OpenAPI
https://raw.githubusercontent.com/api-evangelist/optum/refs/heads/main/openapi/optum-medical-network-attachments-submission-v1-openapi.yml
OpenAPI
https://raw.githubusercontent.com/api-evangelist/optum/refs/heads/main/openapi/optum-medical-network-claim-status-v2-openapi.yml
OpenAPI
https://raw.githubusercontent.com/api-evangelist/optum/refs/heads/main/openapi/optum-medical-network-claims-responses-and-reports-v2-openapi.yml
OpenAPI
https://raw.githubusercontent.com/api-evangelist/optum/refs/heads/main/openapi/optum-medical-network-eligibility-v3-openapi.yml
OpenAPI
https://raw.githubusercontent.com/api-evangelist/optum/refs/heads/main/openapi/optum-medical-network-institutional-claims-v1-openapi.yml
OpenAPI
https://raw.githubusercontent.com/api-evangelist/optum/refs/heads/main/openapi/optum-medical-network-professional-claims-v3-openapi.yml
OpenAPI
https://raw.githubusercontent.com/api-evangelist/optum/refs/heads/main/openapi/optum-payer-list-api-v1-openapi.yml
OpenAPI
https://raw.githubusercontent.com/api-evangelist/optum/refs/heads/main/openapi/optum-prior-authorization-v1-openapi.yml
OpenAPI
https://raw.githubusercontent.com/api-evangelist/optum/refs/heads/main/openapi/optum-security-and-authorization-v3-openapi.yml