<status value="active"/> <experimental value="false"/> <date value="2025-03-12T10:00:00+08:00"/> <publisher value="HL7 (FHIR Project)"/> <contact> <telecom> <system value="url"/> <value value="http://hl7.org/fhir"/> </telecom> <telecom> <system value="email"/> <value value="fhir@lists.hl7.org"/> </telecom> </contact> <description value="The performer of the task."/> <jurisdiction> <coding> <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/> <code value="001"/> <display value="World"/> </coding> </jurisdiction> <caseSensitive value="true"/> <valueSet value="http://hl7.org/fhir/ValueSet/task-performer-function-code"/> <content value="complete"/> <concept> <code value="performer"/> <display value="Performer"/> <definition value="A person, non-person living subject, organization or device that who actually and principally carries out the Task action."/> </concept> <concept> <code value="verifier"/> <display value="Verifier"/> <definition value="A person who verifies the correctness and appropriateness of the Task action (plan, order, event, etc.) and hence takes on accountability."/> </concept> <concept> <code value="witness"/> <display value="Witness"/> <definition value="A person witnessing the action happening without doing anything. A witness is not necessarily aware, much less approves of anything stated in the service event."/> </concept> <concept> <code value="referrer"/> <display value="Referrer"/> <definition value="A person having referred the action of the Task to the performer (referring physician)."/> </concept> </CodeSystem>

Generated Narrative: CodeSystem task-performer-function-code

This case-sensitive code system http://hl7.org/fhir/task-performer-function-code defines the following codes:

Code	Display	Definition
performer	Performer	A person, non-person living subject, organization or device that who actually and principally carries out the Task action.
verifier	Verifier	A person who verifies the correctness and appropriateness of the Task action (plan, order, event, etc.) and hence takes on accountability.
witness	Witness	A person witnessing the action happening without doing anything. A witness is not necessarily aware, much less approves of anything stated in the service event.
referrer	Referrer	A person having referred the action of the Task to the performer (referring physician).