API

Attachments Submission

The Attachments Submission API supports the X12 EDI 275 Patient Information transaction. It translates this standard to JSON, so it is more accessible to developers for integration into users’ applications.

Attachments submissions take two forms: Solicited and Unsolicited. As an example of an unsolicited attachment, consider workman's compensation claims. Attachments illustrating the conditions giving rise to the claim are required in all worker's compensation claims, hence they called unsolicited claims. Solicited claims usually are sent by payers to providers requesting documentation for a claim.

Submission

Most of our APIs are private and require credentials to gain access. Begin by obtaining your client_id and client_secret for our sandbox test environment.

Interactive

 You can test the APIs from within our interactive documentation, use an application such as Postman, or use your own development platform.

Comprehensive

Optum supports the following formats for 275 attachments: JPG, BMP, GIF, TIF, TIFF, PDF, DOC, DOCX, TXT, RTF, JPEG, and PNG.

Developer Resources

Attachments Submission API

API Documentation
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Frequently Asked Questions

Frequently Asked Questions

Q: How can I test the APIs to explore further?

A: You can test the APIs from within our interactive documentation, use an application such as Postman, or use your own development platform. You use a separate Optum-issued secret pair for your production API work.

Q: Do you have a sandbox that I can test before signing a contract?

A: We do! You can use our Sandbox environment even before signing a contract. It requires a separate set of secure credentials which you can obtain from your Optum representative. After receiving your client_id and client_secret for our Sandbox environment, you can test the API in our interactive documentation, use an application such as Postman, or test APIs using your own development console.    

Q: How do I get started with Onboarding?

A: Most of our APIs are private and require credentials to gain access. Begin by obtaining your client_id and client_secret for our sandbox test environment. (Contact your Optum representative if you do not have this information.)

Find out more about our security protocols and their implementation by visiting our Developer Portal

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