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

CodeSystem: ACCESS Event Types

Official URL: https://globalalliantinc.com/access/CodeSystem/ACCESSEventTypeCS Version: 0.9.0
Draft as of 2026-03-06 Computable Name: ACCESSEventTypeCS

Copyright/Legal: Copyright (c) 2026 Centers for Medicare and Medicaid Services (CMS).

This codesystem defines codes for the types of events that trigger subscription notifications in the ACCESS Model.

This Code system is referenced in the content logical definition of the following value sets:

This case-sensitive code system https://globalalliantinc.com/access/CodeSystem/ACCESSEventTypeCS defines the following codes:

CodeDisplayDefinition
participant-lock-ending Participant Lock-In Period Ending The 3-month participant lock-in period is ending soon, allowing the patient to switch to a different participant if desired.
control-group-ending Control Group Period Ending The 12-month control group assignment period is ending soon, allowing the patient to be reconsidered for alignment in the ACCESS Model.
alignment-renewal Alignment Renewal Due The initial alignment period is ending and renewal action is required to continue services under the ACCESS Model.
baseline-reporting-window Baseline Reporting Due The baseline data report is due soon. If baseline reporting is not received within 60 days of alignment, the patient will be unaligned.
quarterly-reporting-window Quarterly Reporting Due The quarterly data report is due soon. Quarterly reporting must be submitted 70 to 110 days after the prior data submission.
eoy-reporting-window End-of-Year Reporting Due The end-of-year data report is due soon. End-of-year reporting must be submitted no later than 425 days from the date of alignment (365 days plus an additional 60 days).
unalignment Unalignment Notice The patient has been unaligned from the ACCESS Model due to a change in eligibility status.