<status value="active" /> <experimental value="false" /> <date value="2023-03-01T15:16:05.9629752+00:00" /> <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 association status of the device." /> <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/device-association-status" /> <content value="complete" /> <concept> <code value="implanted" /> <display value="Implanted" /> <definition value="The device is implanted in the patient." /> </concept> <concept> <code value="explanted" /> <display value="Explanted" /> <definition value="The device is no longer implanted in the patient. Note that this is not the value to be used for devices that have never been implanted. In those cases, no value or a specific value can be used." /> </concept> <concept> <code value="attached" /> <display value="Attached" /> <definition value="The device is attached to the patient but not implanted in the patient." /> </concept> <concept> <code value="unknown" /> <display value="Unknown" /> <definition value="The association status of the device has not been determined." /> </concept> </CodeSystem>

This code system http://hl7.org/fhir/device-association-status defines the following codes:

Code	Display	Definition
implanted	Implanted	The device is implanted in the patient.
explanted	Explanted	The device is no longer implanted in the patient. Note that this is not the value to be used for devices that have never been implanted. In those cases, no value or a specific value can be used.
attached	Attached	The device is attached to the patient but not implanted in the patient.
unknown	Unknown	The association status of the device has not been determined.