{
"description": "This cross-version extension represents Conformance.rest.resource.searchParam.chain from http://hl7.org/fhir/StructureDefinition/Conformance|1.0.2 for use in FHIR R4.",
"_filename": "StructureDefinition-ext-R2-Conformance.re.re.se.chain.json",
"package_name": "hl7.fhir.uv.xver-r2.r4",
"date": "2025-09-01T22:35:48.838216+10:00",
"derivation": "constraint",
"publisher": "FHIR Infrastructure",
"fhirVersion": "4.0.1",
"jurisdiction": [ {
"coding": [ {
"code": "001",
"system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
"display": "World"
} ]
} ],
"name": "Ext_R2_Conformance_re_re_se_chain",
"mapping": [ {
"uri": "http://hl7.org/v3",
"name": "RIM Mapping",
"identity": "rim"
} ],
"abstract": false,
"type": "Extension",
"experimental": "false",
"resourceType": "StructureDefinition",
"title": "Cross-version Extension for R2.Conformance.rest.resource.searchParam.chain for use in FHIR R4",
"package_version": "0.0.1-snapshot-2",
"extension": [ {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode": "fhir"
}, {
"url": "http://hl7.org/fhir/StructureDefinition/package-source",
"extension": [ {
"url": "packageId",
"valueId": "hl7.fhir.uv.xver-r2.r4"
}, {
"url": "version",
"valueString": "0.0.1-snapshot-2"
} ]
}, {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger": 0,
"_valueInteger": {
"extension": [ {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
"valueCanonical": "http://hl7.org/fhir/1.0/ImplementationGuide/hl7.fhir.uv.xver-r2.r4"
} ]
}
}, {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
"valueCode": "trial-use",
"_valueCode": {
"extension": [ {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
"valueCanonical": "http://hl7.org/fhir/1.0/ImplementationGuide/hl7.fhir.uv.xver-r2.r4"
} ]
}
} ],
"snapshot": {
"element": [ {
"constraint": [ {
"key": "ele-1",
"human": "All FHIR elements must have a @value or children",
"xpath": "@value|f:*|h:div",
"source": "http://hl7.org/fhir/StructureDefinition/Element|4.0.1",
"severity": "error",
"expression": "hasValue() or (children().count() > id.count())"
}, {
"key": "ext-1",
"human": "Must have either extensions or value[x], not both",
"xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
"source": "http://hl7.org/fhir/StructureDefinition/Extension|4.0.1",
"severity": "error",
"expression": "extension.exists() != value.exists()"
} ],
"path": "Extension",
"min": 0,
"definition": "Contains the names of any search parameters which may be chained to the containing search parameter. Chained parameters may be added to search parameters of type reference, and specify that resources will only be returned if they contain a reference to a resource which matches the chained parameter value. Values for this field should be drawn from Conformance.rest.resource.searchParam.name on the target resource type.",
"isModifier": false,
"short": "Chained names supported",
"max": "*",
"id": "Extension",
"condition": [ "ele-1" ],
"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": "string"
} ]
} ],
"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",
"xpath": "@value|f:*|h:div",
"source": "http://hl7.org/fhir/StructureDefinition/Element|4.0.1",
"severity": "error",
"expression": "hasValue() or (children().count() > id.count())"
}, {
"key": "ext-1",
"human": "Must have either extensions or value[x], not both",
"xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
"source": "http://hl7.org/fhir/StructureDefinition/Extension|4.0.1",
"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-Conformance.rest.resource.searchParam.chain",
"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",
"xpath": "@value|f:*|h:div",
"source": "http://hl7.org/fhir/StructureDefinition/Element|4.0.1",
"severity": "error",
"expression": "hasValue() or (children().count() > id.count())"
} ],
"path": "Extension.value[x]",
"min": 0,
"definition": "Contains the names of any search parameters which may be chained to the containing search parameter. Chained parameters may be added to search parameters of type reference, and specify that resources will only be returned if they contain a reference to a resource which matches the chained parameter value. Values for this field should be drawn from Conformance.rest.resource.searchParam.name on the target resource type.",
"isModifier": false,
"short": "Chained names supported",
"mapping": [ {
"map": "N/A",
"identity": "rim"
} ],
"type": [ {
"code": "string"
} ],
"max": "1",
"id": "Extension.value[x]",
"base": {
"max": "1",
"min": 0,
"path": "Extension.value[x]"
},
"isSummary": false
} ],
"extension": [ {
"url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
"valueString": "4.0.1"
} ]
},
"status": "active",
"id": "b6dba44e-1453-424a-ac98-156ea70ca03d",
"kind": "complex-type",
"url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-Conformance.rest.resource.searchParam.chain",
"context": [ {
"type": "element",
"expression": "CapabilityStatement.rest.resource.searchParam"
} ],
"version": "0.0.1-snapshot-2",
"differential": {
"element": [ {
"id": "Extension",
"max": "*",
"min": 0,
"base": {
"max": "*",
"min": 0,
"path": "Extension"
},
"path": "Extension",
"short": "Chained names supported",
"definition": "Contains the names of any search parameters which may be chained to the containing search parameter. Chained parameters may be added to search parameters of type reference, and specify that resources will only be returned if they contain a reference to a resource which matches the chained parameter value. Values for this field should be drawn from Conformance.rest.resource.searchParam.name on the target resource type."
}, {
"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-Conformance.rest.resource.searchParam.chain"
}, {
"id": "Extension.value[x]",
"base": {
"max": "1",
"min": 0,
"path": "Extension.value[x]"
},
"path": "Extension.value[x]",
"type": [ {
"code": "string"
} ],
"short": "Chained names supported",
"definition": "Contains the names of any search parameters which may be chained to the containing search parameter. Chained parameters may be added to search parameters of type reference, and specify that resources will only be returned if they contain a reference to a resource which matches the chained parameter value. Values for this field should be drawn from Conformance.rest.resource.searchParam.name on the target resource type."
} ]
},
"contact": [ {
"name": "FHIR Infrastructure",
"telecom": [ {
"value": "http://www.hl7.org/Special/committees/fiwg",
"system": "url"
} ]
} ],
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension|4.0.1"
}