This case-sensitive code system http://terminology.hl7.org/CodeSystem/med-admin-perform-function 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 action verifier Verifier A person who verifies the correctness and appropriateness of the service (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. Example for a witness is students watching an operation or an advanced directive witness.
MedicationAdministration Performer Function Codes
This material derives from the HL7 Terminology (THO). THO is copyright ©1989+ Health Level Seven International and is made available under the CC0 designation. For more licensing information see: https://terminology.hl7.org/license
A person, non-person living subject, organization or device that who actually and principally carries out the action
A person who verifies the correctness and appropriateness of the service (plan, order, event, etc.) and hence takes on accountability.
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. Example for a witness is students watching an operation or an advanced directive witness.