This page is part of the FHIR Specification (v4.6.0: R5 Draft Ballot). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R5 R4B R4 R3 R2
Modeling and Methodology Work Group | Maturity Level: N/A | Standards Status: Informative |
Raw XML (canonical form + also see XML Format Specification)
StructureDefinition for string
<?xml version="1.0" encoding="UTF-8"?> <StructureDefinition xmlns="http://hl7.org/fhir"> <id value="string"/> <text> <status value="generated"/> <div xmlns="http://www.w3.org/1999/xhtml">to do</div> </text> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="normative"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version"> <valueCode value="4.0.0"/> </extension> <url value="http://hl7.org/fhir/StructureDefinition/string"/> <version value="4.6.0"/> <name value="string"/> <status value="active"/> <date value="2021-04-15T12:25:09+10:00"/> <publisher value="HL7 FHIR Standard"/> <contact> <telecom> <system value="url"/> <value value="http://hl7.org/fhir"/> </telecom> </contact> <description value="Base StructureDefinition for string Type: A sequence of Unicode characters"/> <fhirVersion value="4.6.0"/> <kind value="primitive-type"/> <abstract value="false"/> <type value="string"/> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/PrimitiveType"/> <derivation value="specialization"/> <snapshot> <element id="string"> <path value="string"/> <short value="Primitive Type string"/> <definition value="A sequence of Unicode characters"/> <comment value="Note that FHIR strings SHALL NOT exceed 1MB in size"/> <min value="0"/> <max value="*"/> <base> <path value="string"/> <min value="0"/> <max value="*"/> </base> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <xpath value="@value|f:*|h:div"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="string.id"> <path value="string.id"/> <representation value="xmlAttr"/> <short value="xml:id (or equivalent in JSON)"/> <definition value="unique id for the element within a resource (for internal references)"/> <min value="0"/> <max value="1"/> <base> <path value="Element.id"/> <min value="0"/> <max value="1"/> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUri value="string"/> </extension> <code value="http://hl7.org/fhirpath/System.String"/> </type> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="string.extension"> <path value="string.extension"/> <short value="Additional content defined by implementations"/> <definition value="May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/> <comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone."/> <alias value="extensions"/> <alias value="user content"/> <min value="0"/> <max value="*"/> <base> <path value="Element.extension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <xpath value="@value|f:*|h:div"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> </constraint> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="string.value"> <path value="string.value"/> <representation value="xmlAttr"/> <short value="Primitive value for string"/> <definition value="The actual value"/> <min value="0"/> <max value="1"/> <base> <path value="string.value"/> <min value="0"/> <max value="1"/> </base> <!-- Note: special primitive values have a FHIRPath system type. e.g. this is compiler magic (c) --> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUri value="string"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/regex"> <valueString value="[ \r\n\t\S]+"/> </extension> <code value="http://hl7.org/fhirpath/System.String"/> </type> <maxLength value="1048576"/> <isModifier value="false"/> <isSummary value="false"/> </element> </snapshot> <differential> <element id="string"> <path value="string"/> <short value="Primitive Type string"/> <definition value="A sequence of Unicode characters"/> <comment value="Note that FHIR strings SHALL NOT exceed 1MB in size"/> <min value="0"/> <max value="*"/> </element> <element id="string.value"> <path value="string.value"/> <representation value="xmlAttr"/> <short value="Primitive value for string"/> <definition value="Primitive value for string"/> <min value="0"/> <max value="1"/> <!-- Note: special primitive values have a FHIRPath system type. e.g. this is compiler magic (a) --> <!-- Note: special primitive values have a FHIRPath system type. e.g. this is compiler magic (b) --> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUri value="string"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/regex"> <valueString value="[ \r\n\t\S]+"/> </extension> <code value="http://hl7.org/fhirpath/System.String"/> </type> <maxLength value="1048576"/> </element> </differential> </StructureDefinition>
Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification.