{
"description": "This cross-version extension represents ElementDefinition.slicing.discriminator from http://hl7.org/fhir/StructureDefinition/ElementDefinition|1.0.2 for use in FHIR R4B.",
"_filename": "StructureDefinition-ext-R2-ElementDefinition.sl.discriminator.json",
"package_name": "hl7.fhir.uv.xver-r2.r4b",
"date": "2025-06-03T03:11:37.6946073+02:00",
"derivation": "constraint",
"publisher": null,
"fhirVersion": "4.3.0",
"name": "ext_R2_ElementDefinition_sl_discriminator",
"abstract": false,
"type": "Extension",
"experimental": "false",
"resourceType": "StructureDefinition",
"title": "Cross-version Extension for R2.ElementDefinition.slicing.discriminator for use in FHIR R4B",
"package_version": "0.0.1-snapshot-1",
"snapshot": {
"element": [ {
"constraint": [ {
"key": "ele-1",
"human": "All FHIR elements must have a @value or children unless an empty Parameters resource",
"source": "http://hl7.org/fhir/StructureDefinition/Element",
"severity": "error",
"expression": "hasValue() or (children().count() > id.count()) or $this is Parameters"
}, {
"key": "ext-1",
"human": "Must have either extensions or value[x], not both",
"source": "http://hl7.org/fhir/StructureDefinition/Extension",
"severity": "error",
"expression": "extension.exists() != value.exists()"
} ],
"path": "Extension",
"min": 0,
"definition": "Designates which child elements are used to discriminate between the slices when processing an instance. If one or more discriminators are provided, the value of the child elements in the instance data SHALL completely distinguish which slice the element in the resource matches based on the allowed values for those elements in each of the slices.",
"isModifier": false,
"short": "Element values that used to distinguish the slices",
"mapping": [ {
"map": "n/a",
"identity": "rim"
}, {
"map": "N/A",
"identity": "rim"
} ],
"max": "*",
"id": "Extension",
"condition": [ "ele-1" ],
"comment": "`ElementDefinition.slicing.discriminator` maps to R4B `ElementDefinition.slicing.discriminator`. So is mapped as Equivalent.",
"base": {
"max": "*",
"min": 0,
"path": "Extension"
}
}, {
"path": "Extension.id",
"min": 0,
"definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
"isModifier": false,
"short": "Unique id for inter-element referencing",
"mapping": [ {
"map": "n/a",
"identity": "rim"
} ],
"type": [ {
"code": "http://hl7.org/fhirpath/System.String",
"extension": [ {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl": "id"
} ]
} ],
"representation": [ "xmlAttr" ],
"max": "1",
"id": "Extension.id",
"base": {
"max": "1",
"min": 0,
"path": "Element.id"
},
"isSummary": false
}, {
"constraint": [ {
"key": "ele-1",
"human": "All FHIR elements must have a @value or children",
"source": "http://hl7.org/fhir/StructureDefinition/Element",
"severity": "error",
"expression": "hasValue() or (children().count() > id.count())"
}, {
"key": "ext-1",
"human": "Must have either extensions or value[x], not both",
"source": "http://hl7.org/fhir/StructureDefinition/Extension",
"severity": "error",
"expression": "extension.exists() != value.exists()"
} ],
"path": "Extension.extension",
"min": 0,
"definition": "May be used to represent additional information that is not part of the basic definition of the element. 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.",
"isModifier": false,
"short": "Additional content defined by implementations",
"mapping": [ {
"map": "n/a",
"identity": "rim"
} ],
"slicing": {
"rules": "open",
"description": "Extensions are always sliced by (at least) url",
"discriminator": [ {
"path": "url",
"type": "value"
} ]
},
"type": [ {
"code": "Extension"
} ],
"alias": [ "extensions", "user content" ],
"max": "*",
"id": "Extension.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.",
"base": {
"max": "*",
"min": 0,
"path": "Element.extension"
},
"isSummary": false
}, {
"path": "Extension.url",
"min": 1,
"definition": "Source of the definition for the extension code - a logical name or a URL.",
"isModifier": false,
"short": "identifies the meaning of the extension",
"fixedUri": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ElementDefinition.slicing.discriminator",
"mapping": [ {
"map": "N/A",
"identity": "rim"
} ],
"type": [ {
"code": "http://hl7.org/fhirpath/System.String",
"extension": [ {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl": "uri"
} ]
} ],
"representation": [ "xmlAttr" ],
"max": "1",
"id": "Extension.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.",
"base": {
"max": "1",
"min": 1,
"path": "Extension.url"
},
"isSummary": false
}, {
"constraint": [ {
"key": "ele-1",
"human": "All FHIR elements must have a @value or children",
"source": "http://hl7.org/fhir/StructureDefinition/Element",
"severity": "error",
"expression": "hasValue() or (children().count() > id.count())"
} ],
"path": "Extension.value[x]",
"min": 0,
"definition": "Designates which child elements are used to discriminate between the slices when processing an instance. If one or more discriminators are provided, the value of the child elements in the instance data SHALL completely distinguish which slice the element in the resource matches based on the allowed values for those elements in each of the slices.",
"isModifier": false,
"short": "Element values that used to distinguish the slices",
"mapping": [ {
"map": "N/A",
"identity": "rim"
} ],
"type": [ {
"code": "string"
} ],
"max": "1",
"id": "Extension.value[x]",
"comment": "`ElementDefinition.slicing.discriminator` maps to R4B `ElementDefinition.slicing.discriminator`. So is mapped as Equivalent.",
"base": {
"max": "1",
"min": 0,
"path": "Extension.value[x]"
},
"isSummary": false
}, {
"id": "Extension.url",
"max": "1",
"min": 1,
"base": {
"max": "1",
"min": 1,
"path": "Extension.url"
},
"path": "Extension.url",
"fixedUri": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ElementDefinition.slicing.discriminator"
} ]
},
"status": "draft",
"id": "521f0d58-eb1d-4fc3-983c-5e82fabce93c",
"kind": "complex-type",
"url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ElementDefinition.slicing.discriminator",
"context": [ {
"type": "element",
"expression": "ElementDefinition.slicing.discriminator"
} ],
"version": "0.0.1-snapshot-1",
"differential": {
"element": [ {
"id": "Extension",
"max": "*",
"min": 0,
"path": "Extension",
"short": "Element values that used to distinguish the slices",
"comment": "`ElementDefinition.slicing.discriminator` maps to R4B `ElementDefinition.slicing.discriminator`. So is mapped as Equivalent.",
"definition": "Designates which child elements are used to discriminate between the slices when processing an instance. If one or more discriminators are provided, the value of the child elements in the instance data SHALL completely distinguish which slice the element in the resource matches based on the allowed values for those elements in each of the slices.",
"isModifier": false
}, {
"id": "Extension.value[x]",
"base": {
"path": "Extension.value[x]"
},
"path": "Extension.value[x]",
"type": [ {
"code": "string"
} ],
"short": "Element values that used to distinguish the slices",
"comment": "`ElementDefinition.slicing.discriminator` maps to R4B `ElementDefinition.slicing.discriminator`. So is mapped as Equivalent.",
"definition": "Designates which child elements are used to discriminate between the slices when processing an instance. If one or more discriminators are provided, the value of the child elements in the instance data SHALL completely distinguish which slice the element in the resource matches based on the allowed values for those elements in each of the slices."
}, {
"id": "Extension.url",
"max": "1",
"min": 1,
"path": "Extension.url",
"fixedUri": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ElementDefinition.slicing.discriminator"
} ]
},
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension"
}