{"caseSensitive":true,"concept":[{"code":"synchronous","definition":"This operation is invoked synchronously","display":"Synchronous"},{"code":"asynchronous","definition":"This operation is invoked asynchronously.","display":"Asynchronous"},{"code":"either","definition":"This operation can be invoked either synchronously or asynchronously.","display":"System"}],"contact":[{"telecom":[{"system":"url","value":"http://hl7.org/fhir"},{"system":"email","value":"fhir@lists.hl7.org"}]}],"content":"complete","date":"2021-01-05T10:01:24+11:00","description":"Indicates that an operation must always be handled as synchronous or asynchronous, or that the server must provide both, and clients can choose","experimental":false,"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-wg","valueCode":"fhir"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status","valueCode":"normative"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm","valueInteger":5}],"id":"synchronicity-control","jurisdiction":[{"coding":[{"code":"001","display":"World","system":"http://unstats.un.org/unsd/methods/m49/m49.htm"}]}],"meta":{"lastUpdated":"2026-03-16T22:59:53.445+00:00"},"name":"OperationSynchronicityControl","publisher":"HL7 (FHIR Project)","resourceType":"CodeSystem","status":"active","text":{"div":"<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: CodeSystem synchronicity-control</b></p><a name=\"synchronicity-control\"> </a><a name=\"hcsynchronicity-control\"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/synchronicity-control</code> defines the following codes:</p><table class=\"codes\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style=\"white-space:nowrap\">synchronous<a name=\"synchronicity-control-synchronous\"> </a></td><td>Synchronous</td><td>This operation is invoked synchronously</td></tr><tr><td style=\"white-space:nowrap\">asynchronous<a name=\"synchronicity-control-asynchronous\"> </a></td><td>Asynchronous</td><td>This operation is invoked asynchronously.</td></tr><tr><td style=\"white-space:nowrap\">either<a name=\"synchronicity-control-either\"> </a></td><td>System</td><td>This operation can be invoked either synchronously or asynchronously.</td></tr></table></div>","status":"generated"},"title":"Operation Synchronicity Control","url":"http://hl7.org/fhir/synchronicity-control","valueSet":"http://hl7.org/fhir/ValueSet/synchronicity-control","version":"6.0.0-ballot4"}