FHIR IG analytics| Package | hl7.fhir.uv.xver-r4.r4b |
| Resource Type | StructureDefinition |
| Id | StructureDefinition-ext-R4-SearchParameter.base.json |
| FHIR Version | R4B |
| Source | http://hl7.org/fhir/uv/xver-r4.r4b/0.1.0/StructureDefinition-ext-R4-SearchParameter.base.html |
| URL | http://hl7.org/fhir/4.0/StructureDefinition/extension-SearchParameter.base |
| Version | 0.1.0 |
| Status | active |
| Date | 2026-03-17T21:02:03.8104715+00:00 |
| Name | ExtensionSearchParameter_Base |
| Title | R4: base |
| Realm | uv |
| Authority | hl7 |
| Description | R4: `SearchParameter.base` |
| Purpose | This extension is part of the cross-version definitions generated to enable use of the element `SearchParameter.base` as defined in FHIR R4 in FHIR R4B. The source element is defined as: `SearchParameter.base` 1..* `code` Following are the generation technical comments: Element `SearchParameter.base` is mapped to FHIR R4B element `SearchParameter.base` as `SourceIsBroaderThanTarget`. |
| Type | Extension |
| Kind | complex-type |
| ConceptMap | ||
| hl7.fhir.uv.xver-r4.r4b#0.1.0 | R4-SearchParameter-element-map-to-R4B | Cross-version mapping for FHIR R4 SearchParameter to FHIR R4B SearchParameter |
| hl7.fhir.uv.xver-r4.r3#0.1.0 | R4-SearchParameter-element-map-to-R3 | Cross-version mapping for FHIR R4 SearchParameter to FHIR STU3 SearchParameter |
| StructureDefinition | ||
| hl7.fhir.uv.xver-r4.r4b#0.1.0 | profile-SearchParameter | Cross-version Profile for R4.SearchParameter for use in FHIR R4B |
No resources found
No extension usage examples found
Note: links and images are rebased to the (stated) source
Generated Narrative: StructureDefinition ext-R4-SearchParameter.base
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  Extension | 1..* | Extension(4.3.0) | R4: base | |
 url | 1..1 | uri | "http://hl7.org/fhir/4.0/StructureDefinition/extension-SearchParameter.base" | |
  value[x] | 1..1 | code | The resource type(s) this search parameter applies to Binding: http://hl7.org/fhir/uv/xver/ValueSet/R4-resource-types-for-R4B (required): One of the resource types defined as part of this version of FHIR. | |
| Documentation for this format | ||||
FHIR
FHIRsmith{
"resourceType": "StructureDefinition",
"id": "ext-R4-SearchParameter.base",
"text": {
"status": "extensions",
"div": "<!-- snip (see above) -->"
},
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode": "fhir"
},
{
"extension": [
{
"url": "packageId",
"valueId": "hl7.fhir.uv.xver-r4.r4b"
},
{
"url": "version",
"valueString": "0.1.0"
},
{
"url": "uri",
"valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r4b"
}
],
"url": "http://hl7.org/fhir/StructureDefinition/package-source"
},
{
"extension": [
{
"url": "startFhirVersion",
"valueCode": "4.3"
},
{
"url": "endFhirVersion",
"valueCode": "4.3"
}
],
"url": "http://hl7.org/fhir/StructureDefinition/version-specific-use"
},
{
"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/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r4b"
}
]
}
},
{
"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/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r4b"
}
]
}
}
],
"url": "http://hl7.org/fhir/4.0/StructureDefinition/extension-SearchParameter.base",
"version": "0.1.0",
"name": "ExtensionSearchParameter_Base",
"title": "R4: base",
"status": "active",
"experimental": false,
"date": "2026-03-17T21:02:03.8104715+00:00",
"publisher": "FHIR Infrastructure",
"contact": [
{
"name": "FHIR Infrastructure",
"telecom": [
{
"system": "url",
"value": "http://www.hl7.org/Special/committees/fiwg"
}
]
}
],
"description": "R4: `SearchParameter.base`",
"jurisdiction": [
{
"coding": [
{
"system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
"code": "001",
"display": "World"
}
]
}
],
"purpose": "This extension is part of the cross-version definitions generated to enable use of the\r\nelement `SearchParameter.base` as defined in FHIR R4\r\nin FHIR R4B.\r\n\r\nThe source element is defined as:\r\n`SearchParameter.base` 1..* `code`\r\n\r\nFollowing are the generation technical comments:\r\nElement `SearchParameter.base` is mapped to FHIR R4B element `SearchParameter.base` as `SourceIsBroaderThanTarget`.",
"fhirVersion": "4.3.0",
"mapping": [
{
"identity": "rim",
"uri": "http://hl7.org/v3",
"name": "RIM Mapping"
}
],
"kind": "complex-type",
"abstract": false,
"context": [
{
"type": "element",
"expression": "SearchParameter.base"
}
],
"type": "Extension",
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension|4.3.0",
"derivation": "constraint",
"snapshot": {
"extension": [
{
"url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
"valueString": "4.3.0"
}
],
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "R4: base",
"definition": "R4: `SearchParameter.base`",
"comment": "Element `SearchParameter.base` is mapped to FHIR R4B element `SearchParameter.base` as `SourceIsBroaderThanTarget`.\nA search parameter must always apply to at least one resource type. When search parameters apply to more than one resource type, they can be used against any of the listed resource types, or in a cross-type search (see [Cross Resource Search](https://hl7.org/fhir/http.html#xr.html#xres-search)).",
"min": 1,
"max": "*",
"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 unless an empty Parameters resource",
"expression": "hasValue() or (children().count() > id.count()) or $this is Parameters",
"xpath": "@value|f:*|h:div|self::f:Parameters",
"source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
},
{
"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|4.3.0"
}
],
"isModifier": false
},
{
"id": "Extension.id",
"path": "Extension.id",
"representation": [
"xmlAttr"
],
"short": "Unique id for inter-element referencing",
"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": [
{
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl": "id"
}
],
"code": "http://hl7.org/fhirpath/System.String"
}
],
"isModifier": false,
"isSummary": false,
"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. 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|4.3.0"
},
{
"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|4.3.0"
}
],
"isModifier": false,
"isSummary": false,
"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": [
{
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl": "uri"
}
],
"code": "http://hl7.org/fhirpath/System.String"
}
],
"fixedUri": "http://hl7.org/fhir/4.0/StructureDefinition/extension-SearchParameter.base",
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "The resource type(s) this search parameter applies to",
"definition": "The base resource type(s) that this search parameter can be used against.",
"comment": "A search parameter must always apply to at least one resource type. When search parameters apply to more than one resource type, they can be used against any of the listed resource types, or in a cross-type search (see [Cross Resource Search](https://hl7.org/fhir/http.html#xr.html#xres-search)).",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "code"
}
],
"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|4.3.0"
}
],
"isModifier": false,
"isSummary": false,
"binding": {
"strength": "required",
"description": "One of the resource types defined as part of this version of FHIR.",
"valueSet": "http://hl7.org/fhir/uv/xver/ValueSet/R4-resource-types-for-R4B"
},
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
}
]
},
"differential": {
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "R4: base",
"definition": "R4: `SearchParameter.base`",
"comment": "Element `SearchParameter.base` is mapped to FHIR R4B element `SearchParameter.base` as `SourceIsBroaderThanTarget`.\nA search parameter must always apply to at least one resource type. When search parameters apply to more than one resource type, they can be used against any of the listed resource types, or in a cross-type search (see [Cross Resource Search](https://hl7.org/fhir/http.html#xr.html#xres-search)).",
"min": 1,
"max": "*",
"base": {
"path": "Extension",
"min": 0,
"max": "*"
},
"isModifier": false
},
{
"id": "Extension.url",
"path": "Extension.url",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"fixedUri": "http://hl7.org/fhir/4.0/StructureDefinition/extension-SearchParameter.base"
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "The resource type(s) this search parameter applies to",
"definition": "The base resource type(s) that this search parameter can be used against.",
"comment": "A search parameter must always apply to at least one resource type. When search parameters apply to more than one resource type, they can be used against any of the listed resource types, or in a cross-type search (see [Cross Resource Search](https://hl7.org/fhir/http.html#xr.html#xres-search)).",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "code"
}
],
"binding": {
"strength": "required",
"description": "One of the resource types defined as part of this version of FHIR.",
"valueSet": "http://hl7.org/fhir/uv/xver/ValueSet/R4-resource-types-for-R4B"
}
}
]
}
}