FHIR IG analytics| Package | hl7.fhir.uv.xver-r4.r5 |
| Resource Type | StructureDefinition |
| Id | StructureDefinition-ext-R4-ResearchDefinition.date.json |
| FHIR Version | R5 |
| Source | http://hl7.org/fhir/uv/xver-r4.r5/0.1.0/StructureDefinition-ext-R4-ResearchDefinition.date.html |
| URL | http://hl7.org/fhir/4.0/StructureDefinition/extension-ResearchDefinition.date |
| Version | 0.1.0 |
| Status | active |
| Date | 2026-03-17T21:02:03.8104715+00:00 |
| Name | ExtensionResearchDefinition_Date |
| Title | R4: Date last changed (new) |
| Realm | uv |
| Authority | hl7 |
| Description | R4: `ResearchDefinition.date` (new:dateTime) |
| Purpose | This extension is part of the cross-version definitions generated to enable use of the element `ResearchDefinition.date` as defined in FHIR R4 in FHIR R5. The source element is defined as: `ResearchDefinition.date` 0..1 `dateTime` Across FHIR versions, the element set has been mapped as: * R4: `ResearchDefinition.date` 0..1 `dateTime` Following are the generation technical comments: Element `ResearchDefinition.date` is not mapped to FHIR R5, since FHIR R4 `ResearchDefinition` is not mapped. Element `ResearchDefinition.date` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element). |
| Type | Extension |
| Kind | complex-type |
| ConceptMap | ||
| hl7.fhir.uv.xver-r4.r5#0.1.0 | R4-ResearchDefinition-element-map-to-R5 | Cross-version mapping for FHIR R4 ResearchDefinition to FHIR R5 Basic |
| hl7.fhir.uv.xver-r4.r3#0.1.0 | R4-ResearchDefinition-element-map-to-R3 | Cross-version mapping for FHIR R4 ResearchDefinition to FHIR STU3 Basic |
No resources found
No extension usage examples found
Note: links and images are rebased to the (stated) source
Generated Narrative: StructureDefinition ext-R4-ResearchDefinition.date
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  Extension | 0..1 | Extension(5.0.0) | R4: Date last changed (new) | |
 url | 1..1 | uri | "http://hl7.org/fhir/4.0/StructureDefinition/extension-ResearchDefinition.date" | |
  value[x] | 0..1 | dateTime | Date last changed | |
| Documentation for this format | ||||
FHIR
FHIRsmith{
"resourceType": "StructureDefinition",
"id": "ext-R4-ResearchDefinition.date",
"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.r5"
},
{
"url": "version",
"valueString": "0.1.0"
},
{
"url": "uri",
"valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r5"
}
],
"url": "http://hl7.org/fhir/StructureDefinition/package-source"
},
{
"extension": [
{
"url": "startFhirVersion",
"valueCode": "5.0"
},
{
"url": "endFhirVersion",
"valueCode": "5.0"
}
],
"url": "http://hl7.org/fhir/StructureDefinition/version-specific-use"
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics",
"valueCode": "can-bind"
},
{
"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.r5"
}
]
}
},
{
"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.r5"
}
]
}
}
],
"url": "http://hl7.org/fhir/4.0/StructureDefinition/extension-ResearchDefinition.date",
"version": "0.1.0",
"name": "ExtensionResearchDefinition_Date",
"title": "R4: Date last changed (new)",
"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: `ResearchDefinition.date` (new:dateTime)",
"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 `ResearchDefinition.date` as defined in FHIR R4\r\nin FHIR R5.\r\n\r\nThe source element is defined as:\r\n`ResearchDefinition.date` 0..1 `dateTime`\r\n\r\nAcross FHIR versions, the element set has been mapped as:\r\n* R4: `ResearchDefinition.date` 0..1 `dateTime`\r\n\r\nFollowing are the generation technical comments:\r\nElement `ResearchDefinition.date` is not mapped to FHIR R5, since FHIR R4 `ResearchDefinition` is not mapped.\nElement `ResearchDefinition.date` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
"fhirVersion": "5.0.0",
"mapping": [
{
"identity": "rim",
"uri": "http://hl7.org/v3",
"name": "RIM Mapping"
}
],
"kind": "complex-type",
"abstract": false,
"context": [
{
"type": "element",
"expression": "Basic"
}
],
"type": "Extension",
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
"derivation": "constraint",
"snapshot": {
"extension": [
{
"url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
"valueString": "5.0.0"
}
],
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "R4: Date last changed (new)",
"definition": "R4: `ResearchDefinition.date` (new:dateTime)",
"comment": "Element `ResearchDefinition.date` is not mapped to FHIR R5, since FHIR R4 `ResearchDefinition` is not mapped.\nElement `ResearchDefinition.date` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).\nNote that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the research definition. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.",
"min": 0,
"max": "1",
"base": {
"path": "Extension",
"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())",
"source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0"
},
{
"key": "ext-1",
"severity": "error",
"human": "Must have either extensions or value[x], not both",
"expression": "extension.exists() != value.exists()",
"source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0"
}
],
"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"
}
],
"condition": [
"ele-1"
],
"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 managable, 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())",
"source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0"
},
{
"key": "ext-1",
"severity": "error",
"human": "Must have either extensions or value[x], not both",
"expression": "extension.exists() != value.exists()",
"source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0"
}
],
"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-ResearchDefinition.date",
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "Date last changed",
"definition": "The date (and optionally time) when the research definition was published. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the research definition changes.",
"comment": "Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the research definition. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "dateTime"
}
],
"condition": [
"ext-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() or (children().count() > id.count())",
"source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0"
}
],
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
}
]
},
"differential": {
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "R4: Date last changed (new)",
"definition": "R4: `ResearchDefinition.date` (new:dateTime)",
"comment": "Element `ResearchDefinition.date` is not mapped to FHIR R5, since FHIR R4 `ResearchDefinition` is not mapped.\nElement `ResearchDefinition.date` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).\nNote that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the research definition. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.",
"min": 0,
"max": "1",
"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-ResearchDefinition.date"
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "Date last changed",
"definition": "The date (and optionally time) when the research definition was published. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the research definition changes.",
"comment": "Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the research definition. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "dateTime"
}
]
}
]
}
}