CMS ACCESS Model API
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CMS ACCESS Model API - Local Development build (v0.9.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

OperationDefinition: Check Eligibility Request

Official URL: https://globalalliantinc.com/access/OperationDefinition/CheckEligibility Version: 0.9.0
Active as of 2026-03-06 Computable Name: CheckEligibility

The $check-eligibility operation allows a participant to submit basic information on a patient who they believe will be a good candidate for the ACCESS model and who wants to be part of the ACCESS Model. The participant can use this API to do a quick check on which patients may be eligible before officially submitting the patient's information for consideration and inclusion in the ACCESS Model.

URL: [base]/Patient/$check-eligibility

Input parameters Profile:ACCESS Check Eligibility Request Parameters

Parameters

UseNameScopeCardinalityTypeBindingDocumentation
INparticipantID1..1Identifier

ACCESS participant identifier. Must follow the pattern ACCESS#### where #### represents exactly 4 digits (e.g., ACCESS0001, ACCESS1234).

INpayerID1..1Identifier

Payer ID for the patient.

INpatient1..1Patient

Patient information. It SHOULD contain the Medicare Beneficiary Identifier (MBI).

INtrack1..1CodeableConceptACCESS Model Tracks Value Set (Required)

ACCESS track for which eligibility is being checked.

INcondition0..*Condition

Patient's conditions.