FHIR Extensions Pack
5.3.0 - May 2026 International flag

This page is part of the FHIR Core Extensions Registry (v5.3.0: Release 5.3) based on FHIR (HL7® FHIR® Standard) v5.0.0. This is the current published version. For a full list of available versions, see the Directory of published versions

CodeSystem: Operation Synchronicity Control Codes

Official URL: http://hl7.org/fhir/synchronicity-control Version: 5.3.0
Standards status: Normative Maturity Level: 5 Computable Name: OperationSynchronicityControlCodeSystem
Other Identifiers: OID:2.16.840.1.113883.4.642.4.2055

Indicates that an operation must always be handled as synchronous or asynchronous, or that the server must provide both, and clients can choose

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

Changes since version 5.2.0:

  • New Content

    • This case-sensitive code system http://hl7.org/fhir/synchronicity-control defines the following codes:

    CodeDisplayDefinition
    synchronous Synchronous This operation is invoked synchronously
    asynchronous Asynchronous This operation is invoked asynchronously.
    either System This operation can be invoked either synchronously or asynchronously.