<status value="draft" /> <date value="2019-11-02" /> <publisher value="ehealth.sundhed.dk" /> <description value="This structure holds the danish *Central Person Register* (CPR) identifier" /> <fhirVersion value="4.0.1" /> <kind value="complex-type" /> <abstract value="false" /> <type value="Identifier" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Identifier" /> <derivation value="constraint" /> <differential> <element id="Identifier.use"> <path value="Identifier.use" /> <fixedCode value="official" /> </element> <element id="Identifier.type.coding.system"> <path value="Identifier.type.coding.system" /> <fixedUri value="http://terminology.hl7.org/CodeSystem/v2-0203" /> </element> <element id="Identifier.type.coding.code"> <path value="Identifier.type.coding.code" /> <fixedCode value="NNDNK" /> </element> <element id="Identifier.system"> <path value="Identifier.system" /> <min value="1" /> <binding> <strength value="required" /> <valueSet value="http://hl7.dk/fhir/core/ValueSet/dk-core-cpr-identifier-system" /> </binding> </element> <element id="Identifier.value"> <path value="Identifier.value" /> <min value="1" /> <maxLength value="10" /> <constraint> <key value="cpr" /> <requirements value="Requirement of danish civil registration numbers" /> <severity value="error" /> <human value="Requirement of danish civil registration numbers" /> <expression value="matches('^(?:(?:31(?:0[13578]|1[02])|(?:30|29)(?:0[13-9]|1[0-2])|(?:0[1-9]|1[0-9]|2[0-8])(?:0[1-9]|1[0-2]))[0-9]{2}[0-9]|290200[4-9]|2902(?:(?!00)[02468][048]|[13579][26])[0-3])[0-9]{3}$')" /> <source value="https://cpr.dk/cpr-systemet/opbygning-af-cpr-nummeret/#:~:text=5%20%2D%206%20position%20angiver%20personens,i%20personnummeret%20angiver%20personens%20k%C3%B8n." /> </constraint> <mustSupport value="false" /> </element> </differential> </StructureDefinition>