FHIR IG analytics
| Package | koppeltaalv2.00 |
| Resource Type | StructureDefinition |
| Id | StructureDefinition-instantiates.json |
| FHIR Version | R4 |
| Source | http://koppeltaal.nl/fhir/StructureDefinition-instantiates.html |
| URL | http://vzvz.nl/fhir/StructureDefinition/instantiates |
| Version | 0.16.2 |
| Status | draft |
| Date | 2026-04-02T16:30:50+00:00 |
| Name | KT2_Instantiates |
| Realm | nl |
| Description | Extension added to a Task to refer to the ActivityDefinition which is instantiated by this Task |
| Copyright | VZVZ |
| Type | Extension |
| Kind | complex-type |
Resources that use this resource
| StructureDefinition |
| koppeltaalv2.00#0.16.2 | KT2Task | KT2_Task |
Resources that this resource uses
Examples of Use for Extension
Narrative
Note: links and images are rebased to the (stated) source
Source1
{
"resourceType": "StructureDefinition",
"id": "instantiates",
"language": "nl-NL",
"text": {
"status": "extensions",
"div": "<!-- snip (see above) -->"
},
"url": "http://vzvz.nl/fhir/StructureDefinition/instantiates",
"version": "0.16.2",
"name": "KT2_Instantiates",
"status": "draft",
"date": "2026-04-02T16:30:50+00:00",
"publisher": "VZVZ",
"contact": [
{
"name": "VZVZ",
"telecom": [
{
"system": "email",
"value": "standaardisatie@vzvz.nl",
"use": "work"
}
]
}
],
"description": "Extension added to a Task to refer to the ActivityDefinition which is instantiated by this Task",
"jurisdiction": [
{
"coding": [
{
"system": "urn:iso:std:iso:3166",
"code": "NL",
"display": "Netherlands"
}
]
}
],
"copyright": "VZVZ",
"fhirVersion": "4.0.1",
"mapping": [
{
"identity": "rim",
"uri": "http://hl7.org/v3",
"name": "RIM Mapping"
}
],
"kind": "complex-type",
"abstract": false,
"context": [
{
"type": "element",
"expression": "Task"
}
],
"type": "Extension",
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
"derivation": "constraint",
"snapshot": {
"extension": [
{
"url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
"valueString": "4.0.1"
}
],
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "Optional Extensions Element",
"definition": "Optional Extension Element - found in all resources.",
"min": 0,
"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",
"expression": "hasValue() or (children().count() > id.count())",
"xpath": "@value|f:*|h:div",
"source": "http://hl7.org/fhir/StructureDefinition/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": "http://hl7.org/fhir/StructureDefinition/Extension"
}
],
"isModifier": false,
"mapping": [
{
"identity": "rim",
"map": "n/a"
},
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"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": "string"
}
],
"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": "Extension",
"definition": "An Extension",
"min": 0,
"max": "0",
"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"
},
{
"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"
}
],
"isModifier": false,
"isSummary": false
},
{
"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://vzvz.nl/fhir/StructureDefinition/instantiates",
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "Reference to a KT2ActivityDefinition",
"definition": "Use this reference rather than the element `Task.instantiatesCanonical` to refer to the ActivityDefinition which is instantiated by this Task.",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "Reference",
"targetProfile": [
"http://koppeltaal.nl/fhir/StructureDefinition/KT2ActivityDefinition"
]
}
],
"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"
}
],
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
}
]
},
"differential": {
"element": [
{
"id": "Extension.extension",
"path": "Extension.extension",
"max": "0"
},
{
"id": "Extension.url",
"path": "Extension.url",
"fixedUri": "http://vzvz.nl/fhir/StructureDefinition/instantiates"
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "Reference to a KT2ActivityDefinition",
"definition": "Use this reference rather than the element `Task.instantiatesCanonical` to refer to the ActivityDefinition which is instantiated by this Task.",
"min": 1,
"type": [
{
"code": "Reference",
"targetProfile": [
"http://koppeltaal.nl/fhir/StructureDefinition/KT2ActivityDefinition"
]
}
]
}
]
}
}
Extension 
extension 
value[x] 
FHIR
FHIRsmith