<status value="active" /> <publisher value="Nictiz" /> <contact> <name value="Nictiz" /> <telecom> <system value="url" /> <value value="https://www.nictiz.nl" /> <use value="work" /> </telecom> </contact> <description value="An extension to provide a Condition to a PeriodOfUse." /> <purpose value="This extension represents the PeriodOfUse.Condition concept for implementations following the information standard [MP9](https://informatiestandaarden.nictiz.nl/wiki/Landingspagina_Medicatieproces)." /> <copyright value="Copyright and related rights waived via CC0, https://creativecommons.org/publicdomain/zero/1.0/. This does not apply to information from third parties, for example a medical terminology system. The implementer alone is responsible for identifying and obtaining any necessary licenses or authorizations to utilize third party IP in connection with the specification or otherwise." /> <fhirVersion value="4.0.1" /> <kind value="complex-type" /> <abstract value="false" /> <context> <type value="element" /> <expression value="Period" /> </context> <type value="Extension" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" /> <derivation value="constraint" /> <differential> <element id="Extension"> <path value="Extension" /> <max value="1" /> </element> <element id="Extension.url"> <path value="Extension.url" /> <fixedUri value="http://nictiz.nl/fhir/StructureDefinition/ext-PeriodOfUse.Condition" /> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]" /> <short value="Condition" /> <definition value="Element to indicate that the start or end date is uncertain. In certain situations the start or end date can depend on another piece of information. This is, for example, the case when a patient has to start or stop medication a few days before hospital admission. In that case this element is used to indicate (in free text): ‘start X days before hospital admission’ or ‘stop X days before hospital admission’. By doing this, it is clear that the entered start or end date is uncertain when the MedicationAgreement or AdministrationAgreement is being exchanged." /> <alias value="Criterium" /> <type> <code value="string" /> </type> </element> </differential> </StructureDefinition>