Package | hl7.fhir.uv.sdc |
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
Note: links and images are rebased to the (stated) source
Generated Narrative: StructureDefinition sdc-questionnaire-definitionExtractValue
{ "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": [ { "identity": "rim", "uri": "http://hl7.org/v3", "name": "RIM Mapping" } ], "kind": "complex-type", "abstract": false, "context": [ { "type": "element", "expression": "Questionnaire" }, { "type": "element", "expression": "Questionnaire.item" }, { "type": "element", "expression": "ElementDefinition" } ], "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": "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.", "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" }, { "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" } ], "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": "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": 1, "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" }, { "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: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", "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.extension:definition.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.", "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:definition.extension", "path": "Extension.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.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" }, "type": [ { "extension": [ { "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type", "valueUrl": "uri" } ], "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" }, "type": [ { "code": "uri" } ], "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.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", "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.extension:expression.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.", "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:expression.extension", "path": "Extension.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.extension:expression.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" } ], "code": "http://hl7.org/fhirpath/System.String" } ], "fixedUri": "expression", "isModifier": false, "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]", "min": 0, "max": "1" }, "type": [ { "code": "Expression" } ], "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.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", "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.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.", "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:fixed-value.extension", "path": "Extension.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.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" } ], "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" }, { "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" } ] } }