<status value="active" /> <fhirVersion value="4.0.1" /> <kind value="complex-type" /> <abstract value="false" /> <context> <type value="element" /> <expression value="SubstanceSpecification" /> </context> <type value="Extension" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" /> <derivation value="constraint" /> <differential> <element id="Extension"> <path value="Extension" /> <short value="SPOR SMS ID" /> <definition value="The substance ID in the [EMA SPOR substances management services](https://spor.ema.europa.eu/smswi/#/). Identifies substnaces in EU marketing authorisations. System URL: [https://mpd.noma.no/identifier/sms-id](https://mpd.noma.no/identifier/sms-id)" /> <max value="1" /> </element> <element id="Extension.id"> <path value="Extension.id" /> <max value="0" /> </element> <element id="Extension.extension"> <path value="Extension.extension" /> <max value="0" /> </element> <element id="Extension.url"> <path value="Extension.url" /> <fixedUri value="https://mpd.noma.no/identifier/sms-id_old" /> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]" /> <type> <code value="Identifier" /> </type> </element> <element id="Extension.value[x].id"> <path value="Extension.value[x].id" /> <max value="0" /> </element> <element id="Extension.value[x].use"> <path value="Extension.value[x].use" /> <max value="0" /> </element> <element id="Extension.value[x].type"> <path value="Extension.value[x].type" /> <max value="0" /> </element> <element id="Extension.value[x].system"> <path value="Extension.value[x].system" /> <min value="1" /> </element> <element id="Extension.value[x].value"> <path value="Extension.value[x].value" /> <min value="1" /> </element> <element id="Extension.value[x].assigner"> <path value="Extension.value[x].assigner" /> <max value="0" /> </element> </differential> </StructureDefinition>