Submit encounter eligibility check

<Tip>Candid is deprecating support for this endpoint. It is instead recommended to use [Candid's Stedi passthrough endpoint](https://docs.joincandidhealth.com/api-reference/pre-encounter/eligibility-checks/v-1/post). For assistance with the transition, please reference the [Transitioning to Candid's New Eligibility Endpoint](https://support.joincandidhealth.com/hc/en-us/articles/34918552872980) document in the Candid Support Center.</Tip> This API is a wrapper around Change Healthcare's eligibility API. Below are some helpful documentation links: - [Change Healthcare - Guides: Contents of the Eligibility Request Body](https://developers.changehealthcare.com/eligibilityandclaims/docs/contents-of-the-eligibility-request-body) - [Change Healthcare - Guides: Use "Bare Minimum" Eligibility Requests](https://developers.changehealthcare.com/eligibilityandclaims/docs/use-bare-minimum-eligibility-requests) - [Change Healthcare - Guides: Contents of the Eligibility Response](https://developers.changehealthcare.com/eligibilityandclaims/docs/contents-of-the-eligibility-response) - [Change Healthcare - Guides: Eligibility JSON-to-EDI API Contents](https://developers.changehealthcare.com/eligibilityandclaims/docs/eligibility-json-to-edi-api-contents) - [Change Healthcare - Guides: Eligibility Error Messages](https://developers.changehealthcare.com/eligibilityandclaims/docs/eligibility-error-messages) - [Change Healthcare - Guides: FAQ](https://developers.changehealthcare.com/eligibilityandclaims/docs/frequently-asked-questions) - [Change Healthcare - Guides: Eligibility FAQs](https://developers.changehealthcare.com/eligibilityandclaims/docs/eligibility-api-requests) - [Change Healthcare - Guides: Sandbox API Values and Test Responses](https://developers.changehealthcare.com/eligibilityandclaims/docs/eligibility-sandbox-api-values-and-test-responses) - [Change Healthcare - Guides: Sandbox Predefined Fields and Values](https://developers.changehealthcare.com/eligibilityandclaims/docs/sandbox-predefined-fields-and-values) - [Change Healthcare - Guides: Using Test Payers in the Sandbox](https://developers.changehealthcare.com/eligibilityandclaims/docs/use-the-test-payers-in-the-sandbox-api) A schema of the response object can be found here: [Change Healthcare Docs](https://developers.changehealthcare.com/eligibilityandclaims/reference/medicaleligibility)