<status value="draft" /> <date value="2019-11-02" /> <publisher value="ehealth.sundhed.dk" /> <description value="This structure holds the danish *civil registration number* (CRN) identifier" /> <fhirVersion value="4.0.0" /> <mapping> <identity value="v2" /> <uri value="http://hl7.org/v2" /> <name value="HL7 v2 Mapping" /> </mapping> <mapping> <identity value="rim" /> <uri value="http://hl7.org/v3" /> <name value="RIM Mapping" /> </mapping> <mapping> <identity value="servd" /> <uri value="http://www.omg.org/spec/ServD/1.0/" /> <name value="ServD" /> </mapping> <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" /> <fixedUri value="urn:oid:1.2.208.176.1.2" /> </element> <element id="Identifier.value"> <path value="Identifier.value" /> <min value="1" /> <maxLength value="10" /> <constraint> <key value="crn" /> <requirements value="Requirement of danish civil registration numbers" /> <severity value="error" /> <human value="Requirement of danish civil registration numbers" /> <expression value="value.matches('^[0-9]{10}$')" /> <source value="Identifier" /> </constraint> <mustSupport value="false" /> </element> </differential> </StructureDefinition>