This page is part of the FHIR Specification (v3.0.2: STU 3). 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: R4B R4 R3 R2
FHIR Infrastructure Work Group | Maturity Level: N/A | Ballot Status: Informative |
objectClass
{ "resourceType": "StructureDefinition", "id": "11179-objectClass", "extension": [ { "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg", "valueCode": "fhir" }, { "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm", "valueInteger": 1 } ], "url": "http://hl7.org/fhir/StructureDefinition/11179-objectClass", "name": "objectClass", "title": "Object Class", "status": "draft", "date": "2014-04-21", "publisher": "Health Level Seven International (Orders and Observations)", "contact": [ { "telecom": [ { "system": "url", "value": "http://hl7.org" } ] } ], "description": "A concept that represents a set of ideas, abstractions, or things in the real world that can be identified with explicit boundaries and meaning and whose properties and behavior follow the same rules. It may be either a single concept or a group of associated concepts, abstractions, or things.", "fhirVersion": "3.0.2", "mapping": [ { "identity": "v2", "uri": "http://hl7.org/v2", "name": "HL7 v2 Mapping" }, { "identity": "rim", "uri": "http://hl7.org/v3", "name": "RIM Mapping" }, { "identity": "iso11179", "uri": "http://metadata-standards.org/11179/", "name": "ISO 11179" } ], "kind": "complex-type", "abstract": false, "contextType": "datatype", "context": [ "ElementDefinition.mapping" ], "type": "Extension", "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension", "derivation": "constraint", "snapshot": { "element": [ { "id": "Extension", "path": "Extension", "short": "Object Class", "definition": "A concept that represents a set of ideas, abstractions, or things in the real world that can be identified with explicit boundaries and meaning and whose properties and behavior follow the same rules. It may be either a single concept or a group of associated concepts, abstractions, or things.", "comment": "ObjectClass and Property are treated as a data model that can be mapped to, like any other. This extension merely captures the ObjectClass element as a discrete code. The information conveyed here should also be conveyed in human-readable form in the mapping.map element.", "min": 0, "max": "1", "base": { "path": "Extension", "min": 0, "max": "*" }, "condition": [ "ele-1" ], "constraint": [ { "key": "ele-1", "severity": "error", "human": "All FHIR elements must have a @value or children", "expression": "hasValue() | (children().count() > id.count())", "xpath": "@value|f:*|h:div", "source": "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": "Extension" } ], "mapping": [ { "identity": "v2", "map": "N/A" }, { "identity": "rim", "map": "N/A" }, { "identity": "iso11179", "map": "Data_Element.meaning.object_class" } ] }, { "id": "Extension.id", "path": "Extension.id", "representation": [ "xmlAttr" ], "short": "xml:id (or equivalent in JSON)", "definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.", "min": 0, "max": "1", "base": { "path": "Element.id", "min": 0, "max": "1" }, "type": [ { "code": "string" } ], "mapping": [ { "identity": "rim", "map": "n/a" } ] }, { "id": "Extension.extension", "path": "Extension.extension", "slicing": { "discriminator": [ { "type": "value", "path": "url" } ], "description": "Extensions are always sliced by (at least) url", "rules": "open" }, "short": "Additional Content defined by implementations", "definition": "May be used to represent additional information that is not part of the basic definition of the element. In order 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 is allowed to 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" } ], "mapping": [ { "identity": "rim", "map": "n/a" } ] }, { "id": "Extension.url", "path": "Extension.url", "representation": [ "xmlAttr" ], "short": "identifies the meaning of the extension", "definition": "Source of the definition for the extension code - a logical name or a URL.", "comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.", "min": 1, "max": "1", "base": { "path": "Extension.url", "min": 1, "max": "1" }, "type": [ { "code": "uri" } ], "fixedUri": "http://hl7.org/fhir/StructureDefinition/11179-objectClass", "mapping": [ { "identity": "rim", "map": "N/A" } ] }, { "id": "Extension.valueCoding", "path": "Extension.valueCoding", "short": "Value of extension", "definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).", "min": 0, "max": "1", "base": { "path": "Extension.value[x]", "min": 0, "max": "1" }, "type": [ { "code": "Coding" } ], "binding": { "extension": [ { "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName", "valueString": "11179ObjectClass" } ], "strength": "example", "description": "A concept that represents a set of ideas, abstractions, or things in the real world that can be identified with explicit boundaries and meaning and whose properties and behavior follow the same rules; e.g. Person, Prescription, Encounter, etc.", "valueSetReference": { "reference": "http://hl7.org/fhir/ValueSet/dataelement-sdcobjectclass" } }, "mapping": [ { "identity": "rim", "map": "N/A" } ] } ] }, "differential": { "element": [ { "id": "Extension", "path": "Extension", "short": "Object Class", "definition": "A concept that represents a set of ideas, abstractions, or things in the real world that can be identified with explicit boundaries and meaning and whose properties and behavior follow the same rules. It may be either a single concept or a group of associated concepts, abstractions, or things.", "comment": "ObjectClass and Property are treated as a data model that can be mapped to, like any other. This extension merely captures the ObjectClass element as a discrete code. The information conveyed here should also be conveyed in human-readable form in the mapping.map element.", "min": 0, "max": "1", "mapping": [ { "identity": "v2", "map": "N/A" }, { "identity": "rim", "map": "N/A" }, { "identity": "iso11179", "map": "Data_Element.meaning.object_class" } ] }, { "id": "Extension.extension", "path": "Extension.extension", "max": "0" }, { "id": "Extension.url", "path": "Extension.url", "type": [ { "code": "uri" } ], "fixedUri": "http://hl7.org/fhir/StructureDefinition/11179-objectClass" }, { "id": "Extension.valueCoding", "path": "Extension.valueCoding", "type": [ { "code": "Coding" } ], "binding": { "extension": [ { "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName", "valueString": "11179ObjectClass" } ], "strength": "example", "description": "A concept that represents a set of ideas, abstractions, or things in the real world that can be identified with explicit boundaries and meaning and whose properties and behavior follow the same rules; e.g. Person, Prescription, Encounter, etc.", "valueSetReference": { "reference": "http://hl7.org/fhir/ValueSet/dataelement-sdcobjectclass" } } } ] } }
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.