{"resourceType":"StructureDefinition","id":"code","meta":{"lastUpdated":"2021-01-17T07:06:13.533+11:00"},"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status","valueCode":"normative"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version","valueCode":"4.0.0"}],"url":"http://hl7.org/fhir/StructureDefinition/code","version":"4.0.1","name":"code","status":"active","date":"2021-01-17T07:06:13+11:00","publisher":"HL7 FHIR Standard","contact":[{"telecom":[{"system":"url","value":"http://hl7.org/fhir"}]}],"description":"Base StructureDefinition for code type: A string which has at least one character and no leading or trailing whitespace and where there is no whitespace other than single spaces in the contents","fhirVersion":"4.0.1","kind":"primitive-type","abstract":false,"type":"code","baseDefinition":"http://hl7.org/fhir/StructureDefinition/string","derivation":"specialization","snapshot":{"element":[{"id":"code","path":"code","short":"Primitive Type code","definition":"A string which has at least one character and no leading or trailing whitespace and where there is no whitespace other than single spaces in the contents","min":0,"max":"*","base":{"path":"code","min":0,"max":"*"},"constraint":[{"key":"ele-1","severity":"error","human":"All FHIR elements must have a @value or children","expression":"hasValue() or (children().count() > id.count())","xpath":"@value|f:*|h:div","source":"http://hl7.org/fhir/StructureDefinition/http://hl7.org/fhir/StructureDefinition/Element"}],"isModifier":false,"isSummary":false},{"id":"code.id","path":"code.id","representation":["xmlAttr"],"short":"xml:id (or equivalent in JSON)","definition":"unique id for the element within a resource (for internal references)","min":0,"max":"1","base":{"path":"Element.id","min":0,"max":"1"},"type":[{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type","valueUri":"string"}],"code":"http://hl7.org/fhirpath/System.String"}],"isModifier":false,"isSummary":false},{"id":"code.extension","path":"code.extension","short":"Additional content defined by implementations","definition":"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":"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":["extensions","user content"],"min":0,"max":"*","base":{"path":"Element.extension","min":0,"max":"*"},"type":[{"code":"Extension"}],"constraint":[{"key":"ele-1","severity":"error","human":"All FHIR elements must have a @value or children","expression":"hasValue() or (children().count() > id.count())","xpath":"@value|f:*|h:div","source":"http://hl7.org/fhir/StructureDefinition/Element"},{"key":"ext-1","severity":"error","human":"Must have either extensions or value[x], not both","expression":"extension.exists() != value.exists()","xpath":"exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])","source":"http://hl7.org/fhir/StructureDefinition/Extension"}],"isModifier":false,"isSummary":false},{"id":"code.value","path":"code.value","representation":["xmlAttr"],"short":"Primitive value for code","definition":"Primitive value for code","min":0,"max":"1","base":{"path":"string.value","min":0,"max":"1"},"type":[{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type","valueUri":"string"},{"url":"http://hl7.org/fhir/StructureDefinition/regex","valueString":"[^\\s]+(\\s[^\\s]+)*"}],"code":"http://hl7.org/fhirpath/System.String"}],"isModifier":false,"isSummary":false}]},"differential":{"element":[{"id":"code","path":"code","short":"Primitive Type code","definition":"A string which has at least one character and no leading or trailing whitespace and where there is no whitespace other than single spaces in the contents","min":0,"max":"*"},{"id":"code.value","path":"code.value","representation":["xmlAttr"],"short":"Primitive value for code","definition":"Primitive value for code","min":0,"max":"1","type":[{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type","valueUri":"code"},{"url":"http://hl7.org/fhir/StructureDefinition/regex","valueString":"[^\\s]+(\\s[^\\s]+)*"}],"code":"http://hl7.org/fhirpath/System.String"}]}]}}