| Package | hl7.fhir.uv.sdc |
| Resource Type | StructureDefinition |
| Id | sdc-questionnaire-definitionExtractValue |
| FHIR Version | R4 |
| Source | http://hl7.org/fhir/uv/sdc/https://build.fhir.org/ig/HL7/sdc/StructureDefinition-sdc-questionnaire-definitionExtractValue.html |
| URL | http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-definitionExtractValue |
| Version | 4.0.0-ballot |
| Status | draft |
| Date | 2025-07-14T18:38:59+00:00 |
| Name | DefinitionExtractValueExtension |
| Title | Extract Definition - Extract value |
| Realm | uv |
| Authority | hl7 |
| Description | Provide either a fixed value, or an expression to evaluate, to be used as the value for the extracted resource's property based on the `definition` value. |
| Type | Extension |
| Kind | complex-type |
| StructureDefinition | |
| sdc-questionnaire-extr-defn | Extractable Questionnaire - Definition |
No resources found
| Resource | Version |
|---|---|
| Questionnaire/extract-complex-defn3 | R4 |
Note: links and images are rebased to the (stated) source
Generated Narrative: StructureDefinition sdc-questionnaire-definitionExtractValue
FHIR
Slices for extension
{
"resourceType": "StructureDefinition",
"id": "sdc-questionnaire-definitionExtractValue",
"text": {
"status": "extensions",
"div": "<!-- snip (see above) -->"
},
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
"valueCode": "draft"
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger": 0
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode": "fhir"
}
],
"url": "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-definitionExtractValue",
"identifier": [
{
"system": "urn:ietf:rfc:3986",
"value": "urn:oid:2.16.840.1.113883.4.642.40.17.42.82"
}
],
"version": "4.0.0-ballot",
"name": "DefinitionExtractValueExtension",
"title": "Extract Definition - Extract value",
"status": "draft",
"date": "2025-07-14T18:38:59+00:00",
"publisher": "HL7 International / FHIR Infrastructure",
"contact": [
{
"name": "HL7 International / FHIR Infrastructure",
"telecom": [
{
"system": "url",
"value": "http://www.hl7.org/Special/committees/fiwg"
}
]
},
{
"telecom": [
{
"system": "url",
"value": "http://www.hl7.org/Special/committees/fiwg"
}
]
}
],
"description": "Provide either a fixed value, or an expression to evaluate, to be used as the value for the extracted resource's property based on the `definition` value.",
"jurisdiction": [
{
"coding": [
{
"system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
"code": "001",
"display": "World"
}
]
}
],
"fhirVersion": "4.0.1",
"mapping": [
{
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"abstract": false,
"context": [
{
"type": "element",
"expression": "Questionnaire"
},
{
"type": "element",
"expression": "Questionnaire.item"
},
{
"type": "element",
"expression": "ElementDefinition"
}
],
"type": "Extension",
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"snapshot": {
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{
"url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
"valueString": "4.0.1"
}
],
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{
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"min": 0,
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{
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"xpath": "@value|f:*|h:div",
"source": "http://hl7.org/fhir/StructureDefinition/Element"
},
{
"key": "ext-1",
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"source": "http://hl7.org/fhir/StructureDefinition/Extension"
},
{
"key": "dev-1",
"severity": "error",
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"expression": "extension('expression').value.exists() xor extension('fixed-value').value.exists()",
"source": "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-definitionExtractValue"
}
],
"isModifier": false
},
{
"id": "Extension.id",
"path": "Extension.id",
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"path": "Element.id",
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{
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{
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],
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"mapping": [
{
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},
{
"id": "Extension.extension",
"path": "Extension.extension",
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{
"type": "value",
"path": "url"
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],
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"rules": "open"
},
"short": "Extension",
"definition": "An Extension",
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"base": {
"path": "Element.extension",
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"type": [
{
"code": "Extension"
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],
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{
"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"
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{
"key": "ext-1",
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"source": "http://hl7.org/fhir/StructureDefinition/Extension"
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],
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},
{
"id": "Extension.extension:definition",
"path": "Extension.extension",
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"short": "ElementDefintion to extract value into",
"definition": "This is the profile canonical Url, followed by `#` and the element id, that the value should be extracted into.",
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"max": "1",
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"path": "Element.extension",
"min": 0,
"max": "*"
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{
"code": "Extension"
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{
"key": "ele-1",
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"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() or (children().count() > id.count())",
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{
"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"
}
],
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},
{
"id": "Extension.extension:definition.id",
"path": "Extension.extension.id",
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"xmlAttr"
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"definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
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"path": "Element.id",
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{
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
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"code": "http://hl7.org/fhirpath/System.String"
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],
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{
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},
{
"id": "Extension.extension:definition.extension",
"path": "Extension.extension.extension",
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{
"type": "value",
"path": "url"
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],
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"rules": "open"
},
"short": "Extension",
"definition": "An Extension",
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"max": "0",
"base": {
"path": "Element.extension",
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"max": "*"
},
"type": [
{
"code": "Extension"
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],
"constraint": [
{
"key": "ele-1",
"severity": "error",
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"expression": "hasValue() or (children().count() > id.count())",
"xpath": "@value|f:*|h:div",
"source": "http://hl7.org/fhir/StructureDefinition/Element"
},
{
"key": "ext-1",
"severity": "error",
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"expression": "extension.exists() != value.exists()",
"xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
"source": "http://hl7.org/fhir/StructureDefinition/Extension"
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],
"isModifier": false,
"isSummary": false
},
{
"id": "Extension.extension:definition.url",
"path": "Extension.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"
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"type": [
{
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl": "uri"
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],
"code": "http://hl7.org/fhirpath/System.String"
}
],
"fixedUri": "definition",
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:definition.value[x]",
"path": "Extension.extension.value[x]",
"short": "Profile canonical URL and element id",
"definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list).",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
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"type": [
{
"code": "uri"
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],
"constraint": [
{
"key": "ele-1",
"severity": "error",
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"expression": "hasValue() or (children().count() > id.count())",
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],
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
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]
},
{
"id": "Extension.extension:expression",
"path": "Extension.extension",
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"min": 0,
"max": "1",
"base": {
"path": "Element.extension",
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"max": "*"
},
"type": [
{
"code": "Extension"
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],
"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",
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"expression": "extension.exists() != value.exists()",
"xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
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],
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"isSummary": false
},
{
"id": "Extension.extension:expression.id",
"path": "Extension.extension.id",
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],
"short": "Unique id for inter-element referencing",
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"max": "1",
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"path": "Element.id",
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{
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{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
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],
"code": "http://hl7.org/fhirpath/System.String"
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],
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"isSummary": false,
"mapping": [
{
"identity": "rim",
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]
},
{
"id": "Extension.extension:expression.extension",
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{
"type": "value",
"path": "url"
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],
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"short": "Extension",
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"max": "0",
"base": {
"path": "Element.extension",
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"max": "*"
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"type": [
{
"code": "Extension"
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],
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{
"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.extension:expression.url",
"path": "Extension.extension.url",
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"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"
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"type": [
{
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl": "uri"
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],
"code": "http://hl7.org/fhirpath/System.String"
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],
"fixedUri": "expression",
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"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:expression.value[x]",
"path": "Extension.extension.value[x]",
"short": "Expression value",
"definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list).",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
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"max": "1"
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"type": [
{
"code": "Expression"
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],
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{
"key": "ele-1",
"severity": "error",
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"expression": "hasValue() or (children().count() > id.count())",
"xpath": "@value|f:*|h:div",
"source": "http://hl7.org/fhir/StructureDefinition/Element"
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],
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"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:fixed-value",
"path": "Extension.extension",
"sliceName": "fixed-value",
"short": "A fixed value to extract",
"definition": "A fixed value to extract into the specified element definition.",
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"max": "1",
"base": {
"path": "Element.extension",
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"max": "*"
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{
"code": "Extension"
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],
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{
"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\")])",
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],
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},
{
"id": "Extension.extension:fixed-value.id",
"path": "Extension.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.",
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"max": "1",
"base": {
"path": "Element.id",
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"max": "1"
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"type": [
{
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl": "string"
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],
"code": "http://hl7.org/fhirpath/System.String"
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],
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"mapping": [
{
"identity": "rim",
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]
},
{
"id": "Extension.extension:fixed-value.extension",
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{
"type": "value",
"path": "url"
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],
"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"
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],
"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.extension:fixed-value.url",
"path": "Extension.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"
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],
"code": "http://hl7.org/fhirpath/System.String"
}
],
"fixedUri": "fixed-value",
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:fixed-value.value[x]",
"path": "Extension.extension.value[x]",
"short": "Fixed value",
"definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list).",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "base64Binary"
},
{
"code": "boolean"
},
{
"code": "canonical"
},
{
"code": "code"
},
{
"code": "date"
},
{
"code": "dateTime"
},
{
"code": "decimal"
},
{
"code": "id"
},
{
"code": "instant"
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{
"code": "integer"
},
{
"code": "markdown"
},
{
"code": "oid"
},
{
"code": "positiveInt"
},
{
"code": "string"
},
{
"code": "time"
},
{
"code": "unsignedInt"
},
{
"code": "uri"
},
{
"code": "url"
},
{
"code": "uuid"
},
{
"code": "Address"
},
{
"code": "Age"
},
{
"code": "Annotation"
},
{
"code": "Attachment"
},
{
"code": "CodeableConcept"
},
{
"code": "Coding"
},
{
"code": "ContactPoint"
},
{
"code": "Count"
},
{
"code": "Distance"
},
{
"code": "Duration"
},
{
"code": "HumanName"
},
{
"code": "Identifier"
},
{
"code": "Money"
},
{
"code": "Period"
},
{
"code": "Quantity"
},
{
"code": "Range"
},
{
"code": "Ratio"
},
{
"code": "Reference"
},
{
"code": "SampledData"
},
{
"code": "Signature"
},
{
"code": "Timing"
},
{
"code": "ContactDetail"
},
{
"code": "Contributor"
},
{
"code": "DataRequirement"
},
{
"code": "Expression"
},
{
"code": "ParameterDefinition"
},
{
"code": "RelatedArtifact"
},
{
"code": "TriggerDefinition"
},
{
"code": "UsageContext"
},
{
"code": "Dosage"
},
{
"code": "Meta"
}
],
"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"
}
]
},
{
"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/uv/sdc/StructureDefinition/sdc-questionnaire-definitionExtractValue",
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "Value of extension",
"definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list).",
"min": 0,
"max": "0",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "base64Binary"
},
{
"code": "boolean"
},
{
"code": "canonical"
},
{
"code": "code"
},
{
"code": "date"
},
{
"code": "dateTime"
},
{
"code": "decimal"
},
{
"code": "id"
},
{
"code": "instant"
},
{
"code": "integer"
},
{
"code": "markdown"
},
{
"code": "oid"
},
{
"code": "positiveInt"
},
{
"code": "string"
},
{
"code": "time"
},
{
"code": "unsignedInt"
},
{
"code": "uri"
},
{
"code": "url"
},
{
"code": "uuid"
},
{
"code": "Address"
},
{
"code": "Age"
},
{
"code": "Annotation"
},
{
"code": "Attachment"
},
{
"code": "CodeableConcept"
},
{
"code": "Coding"
},
{
"code": "ContactPoint"
},
{
"code": "Count"
},
{
"code": "Distance"
},
{
"code": "Duration"
},
{
"code": "HumanName"
},
{
"code": "Identifier"
},
{
"code": "Money"
},
{
"code": "Period"
},
{
"code": "Quantity"
},
{
"code": "Range"
},
{
"code": "Ratio"
},
{
"code": "Reference"
},
{
"code": "SampledData"
},
{
"code": "Signature"
},
{
"code": "Timing"
},
{
"code": "ContactDetail"
},
{
"code": "Contributor"
},
{
"code": "DataRequirement"
},
{
"code": "Expression"
},
{
"code": "ParameterDefinition"
},
{
"code": "RelatedArtifact"
},
{
"code": "TriggerDefinition"
},
{
"code": "UsageContext"
},
{
"code": "Dosage"
},
{
"code": "Meta"
}
],
"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",
"path": "Extension",
"short": "Fixed or calculated value to extract",
"definition": "Provide either a fixed value, or an expression to evaluate, to be used as the value for the extracted resource's property based on the `definition` value.",
"constraint": [
{
"key": "dev-1",
"severity": "error",
"human": "Either `expression` or a `fixed-value` must be provided.",
"expression": "extension('expression').value.exists() xor extension('fixed-value').value.exists()",
"source": "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-definitionExtractValue"
}
]
},
{
"id": "Extension.extension",
"path": "Extension.extension",
"min": 1
},
{
"id": "Extension.extension:definition",
"path": "Extension.extension",
"sliceName": "definition",
"short": "ElementDefintion to extract value into",
"definition": "This is the profile canonical Url, followed by `#` and the element id, that the value should be extracted into.",
"min": 1,
"max": "1"
},
{
"id": "Extension.extension:definition.extension",
"path": "Extension.extension.extension",
"max": "0"
},
{
"id": "Extension.extension:definition.url",
"path": "Extension.extension.url",
"fixedUri": "definition"
},
{
"id": "Extension.extension:definition.value[x]",
"path": "Extension.extension.value[x]",
"short": "Profile canonical URL and element id",
"min": 1,
"type": [
{
"code": "uri"
}
]
},
{
"id": "Extension.extension:expression",
"path": "Extension.extension",
"sliceName": "expression",
"short": "An expression to evaluate",
"definition": "An expression to evaluate to extract the value into the specified element definition. If no value is evaluated, then the element is not extracted.",
"min": 0,
"max": "1"
},
{
"id": "Extension.extension:expression.extension",
"path": "Extension.extension.extension",
"max": "0"
},
{
"id": "Extension.extension:expression.url",
"path": "Extension.extension.url",
"fixedUri": "expression"
},
{
"id": "Extension.extension:expression.value[x]",
"path": "Extension.extension.value[x]",
"short": "Expression value",
"min": 1,
"type": [
{
"code": "Expression"
}
]
},
{
"id": "Extension.extension:fixed-value",
"path": "Extension.extension",
"sliceName": "fixed-value",
"short": "A fixed value to extract",
"definition": "A fixed value to extract into the specified element definition.",
"min": 0,
"max": "1"
},
{
"id": "Extension.extension:fixed-value.extension",
"path": "Extension.extension.extension",
"max": "0"
},
{
"id": "Extension.extension:fixed-value.url",
"path": "Extension.extension.url",
"fixedUri": "fixed-value"
},
{
"id": "Extension.extension:fixed-value.value[x]",
"path": "Extension.extension.value[x]",
"short": "Fixed value",
"min": 1
},
{
"id": "Extension.url",
"path": "Extension.url",
"fixedUri": "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-definitionExtractValue"
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"max": "0"
}
]
}
}