FHIR IG analytics| Package | hl7.fhir.uv.extensions.r3 |
| Resource Type | StructureDefinition |
| Id | StructureDefinition-variable.json |
| FHIR Version | R3 |
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FHIR
FHIRsmith{
"resourceType": "StructureDefinition",
"id": "variable",
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode": "fhir"
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueCode": "2"
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
"valueCode": "draft"
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics",
"valueCode": "can-bind"
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status-reason",
"valueCode": "Extensions that have been modified for R3 are still draft while real-world experience is collected"
}
],
"url": "http://hl7.org/fhir/StructureDefinition/variable",
"identifier": [
{
"system": "urn:ietf:rfc:3986",
"value": "urn:oid:2.16.840.1.113883.4.642.5.1528"
}
],
"version": "5.3.0-ballot-tc1",
"name": "Variable",
"title": "Variable",
"status": "active",
"experimental": false,
"date": "2013-12-05",
"publisher": "HL7 International / FHIR Infrastructure",
"contact": [
{
"telecom": [
{
"system": "url",
"value": "http://www.hl7.org/Special/committees/fiwg"
}
]
}
],
"description": "Variable specifying a logic to generate a variable for use in subsequent logic. The name of the variable will be added to FHIRPath's context when processing descendants of the element that contains this extension as well as extensions within the same element.",
"jurisdiction": [
{
"coding": [
{
"system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
"code": "001"
}
]
}
],
"fhirVersion": "3.0.2",
"mapping": [
{
"identity": "rim",
"uri": "http://hl7.org/v3",
"name": "RIM Mapping"
}
],
"kind": "complex-type",
"abstract": false,
"contextType": "resource",
"context": [
"Questionnaire",
"Questionnaire.item",
"PlanDefinition",
"PlanDefinition.action",
"Basic",
"Basic",
"RequestGroup",
"RequestGroup.action",
"ActivityDefinition",
"Measure",
"Measure.group",
"Measure.group.population"
],
"type": "Extension",
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
"derivation": "constraint",
"snapshot": {
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "Variable for processing",
"definition": "Variable specifying a logic to generate a variable for use in subsequent logic. The name of the variable will be added to FHIRPath's context when processing descendants of the element that contains this extension as well as extensions within the same element.",
"comment": "Ordering of variable extension declarations is significant as variables declared in one repetition of this extension might be used in subsequent extension repetitions\n\nFor questionnaires, see additional guidance and examples in the [SDC implementation guide](http://hl7.org/fhir/uv/sdc/2025Jan/behavior.html#variable).",
"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() | (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": "var-1",
"severity": "error",
"human": "Variable expressions must have a name",
"expression": "value.name.exists()"
}
]
},
{
"id": "Extension.id",
"path": "Extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"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": [
{
"code": "string"
}
],
"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",
"ordered": false,
"rules": "open"
},
"short": "Extension",
"definition": "An Extension",
"min": 0,
"max": "*",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
]
},
{
"id": "Extension.extension:_datatype",
"path": "Extension.extension",
"sliceName": "_datatype",
"short": "DataType name 'Expression' from R5",
"definition": "DataType name 'Expression' from R5",
"min": 1,
"max": "1",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension",
"profile": "http://hl7.org/fhir/StructureDefinition/_datatype"
}
]
},
{
"id": "Extension.extension:_datatype.id",
"path": "Extension.extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"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": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:_datatype.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"
}
]
},
{
"id": "Extension.extension:_datatype.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": [
{
"code": "uri"
}
],
"fixedUri": "http://hl7.org/fhir/StructureDefinition/_datatype",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:_datatype.value[x]",
"path": "Extension.extension.value[x]",
"short": "Value of extension",
"definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "string"
}
],
"fixedString": "Expression",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:description",
"path": "Extension.extension",
"sliceName": "description",
"short": "Natural language description of the condition",
"definition": "A brief, natural language description of the condition that effectively communicates the intended semantics.",
"min": 0,
"max": "1",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
]
},
{
"id": "Extension.extension:description.id",
"path": "Extension.extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"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": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:description.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"
}
]
},
{
"id": "Extension.extension:description.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": [
{
"code": "uri"
}
],
"fixedUri": "description",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:description.value[x]",
"path": "Extension.extension.value[x]",
"short": "Value of extension",
"definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:name",
"path": "Extension.extension",
"sliceName": "name",
"short": "Short name assigned to expression for reuse",
"definition": "A short name assigned to the expression to allow for multiple reuse of the expression in the context where it is defined.",
"min": 0,
"max": "1",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
]
},
{
"id": "Extension.extension:name.id",
"path": "Extension.extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"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": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:name.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"
}
]
},
{
"id": "Extension.extension:name.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": [
{
"code": "uri"
}
],
"fixedUri": "name",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:name.value[x]",
"path": "Extension.extension.value[x]",
"short": "Value of extension",
"definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "code"
}
],
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:language",
"path": "Extension.extension",
"sliceName": "language",
"short": "text/cql | text/fhirpath | application/x-fhir-query | etc.",
"definition": "The media type of the language for the expression.",
"min": 0,
"max": "1",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
]
},
{
"id": "Extension.extension:language.id",
"path": "Extension.extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"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": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:language.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"
}
]
},
{
"id": "Extension.extension:language.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": [
{
"code": "uri"
}
],
"fixedUri": "language",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:language.value[x]",
"path": "Extension.extension.value[x]",
"short": "Value of extension",
"definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "code"
}
],
"binding": {
"extension": [
{
"url": "http://hl7.org/fhir/tools/StructureDefinition/binding-definition",
"valueMarkdown": "The media type of the expression language."
},
{
"url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString": "ExpressionLanguage"
},
{
"extension": [
{
"url": "purpose",
"valueCode": "maximum"
},
{
"url": "valueSet",
"valueUri": "http://hl7.org/fhir/ValueSet/mimetypes"
}
]
}
],
"strength": "extensible",
"description": "The media type of the expression language.",
"valueSetReference": {
"reference": "http://hl7.org/fhir/ValueSet/expression-language"
}
},
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:expression",
"path": "Extension.extension",
"sliceName": "expression",
"short": "Expression in specified language",
"definition": "An expression in the specified language that returns a value.",
"comment": "If Expression.expression and Expression.reference are both present, the Expression.expression might just be a name pointing something within the referenced content.",
"min": 0,
"max": "1",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
]
},
{
"id": "Extension.extension:expression.id",
"path": "Extension.extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"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": [
{
"code": "string"
}
],
"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"
}
]
},
{
"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": [
{
"code": "uri"
}
],
"fixedUri": "expression",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:expression.value[x]",
"path": "Extension.extension.value[x]",
"short": "Value of extension",
"definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:reference",
"path": "Extension.extension",
"sliceName": "reference",
"short": "Where the expression is found",
"definition": "A URI that defines where the expression is found.",
"comment": "If both a reference and an expression is found, the reference SHALL point to the same expression.",
"min": 0,
"max": "1",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
]
},
{
"id": "Extension.extension:reference.id",
"path": "Extension.extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"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": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:reference.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"
}
]
},
{
"id": "Extension.extension:reference.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": [
{
"code": "uri"
}
],
"fixedUri": "reference",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:reference.value[x]",
"path": "Extension.extension.value[x]",
"short": "Value of extension",
"definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "uri"
}
],
"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": [
{
"code": "uri"
}
],
"fixedUri": "http://hl7.org/fhir/StructureDefinition/variable",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "Value of extension",
"definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
"min": 0,
"max": "0",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "base64Binary"
},
{
"code": "boolean"
},
{
"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": "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": "Meta"
}
],
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
}
]
},
"differential": {
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "Variable for processing",
"definition": "Variable specifying a logic to generate a variable for use in subsequent logic. The name of the variable will be added to FHIRPath's context when processing descendants of the element that contains this extension as well as extensions within the same element.",
"comment": "Ordering of variable extension declarations is significant as variables declared in one repetition of this extension might be used in subsequent extension repetitions\n\nFor questionnaires, see additional guidance and examples in the [SDC implementation guide](http://hl7.org/fhir/uv/sdc/2025Jan/behavior.html#variable).",
"min": 0,
"max": "*",
"constraint": [
{
"key": "var-1",
"severity": "error",
"human": "Variable expressions must have a name",
"expression": "value.name.exists()"
}
]
},
{
"id": "Extension.extension",
"path": "Extension.extension",
"slicing": {
"discriminator": [
{
"type": "value",
"path": "url"
}
],
"ordered": false,
"rules": "open"
},
"max": "*"
},
{
"id": "Extension.extension:_datatype",
"path": "Extension.extension",
"sliceName": "_datatype",
"short": "DataType name 'Expression' from R5",
"definition": "DataType name 'Expression' from R5",
"min": 1,
"max": "1",
"type": [
{
"code": "Extension",
"profile": "http://hl7.org/fhir/StructureDefinition/_datatype"
}
]
},
{
"id": "Extension.extension:_datatype.value[x]",
"path": "Extension.extension.value[x]",
"min": 1,
"type": [
{
"code": "string"
}
],
"fixedString": "Expression"
},
{
"id": "Extension.extension:description",
"path": "Extension.extension",
"sliceName": "description",
"short": "Natural language description of the condition",
"definition": "A brief, natural language description of the condition that effectively communicates the intended semantics.",
"min": 0,
"max": "1"
},
{
"id": "Extension.extension:description.extension",
"path": "Extension.extension.extension",
"max": "0"
},
{
"id": "Extension.extension:description.url",
"path": "Extension.extension.url",
"fixedUri": "description"
},
{
"id": "Extension.extension:description.value[x]",
"path": "Extension.extension.value[x]",
"min": 1,
"type": [
{
"code": "string"
}
]
},
{
"id": "Extension.extension:name",
"path": "Extension.extension",
"sliceName": "name",
"short": "Short name assigned to expression for reuse",
"definition": "A short name assigned to the expression to allow for multiple reuse of the expression in the context where it is defined.",
"min": 0,
"max": "1"
},
{
"id": "Extension.extension:name.extension",
"path": "Extension.extension.extension",
"max": "0"
},
{
"id": "Extension.extension:name.url",
"path": "Extension.extension.url",
"fixedUri": "name"
},
{
"id": "Extension.extension:name.value[x]",
"path": "Extension.extension.value[x]",
"min": 1,
"type": [
{
"code": "code"
}
]
},
{
"id": "Extension.extension:language",
"path": "Extension.extension",
"sliceName": "language",
"short": "text/cql | text/fhirpath | application/x-fhir-query | etc.",
"definition": "The media type of the language for the expression.",
"min": 0,
"max": "1"
},
{
"id": "Extension.extension:language.extension",
"path": "Extension.extension.extension",
"max": "0"
},
{
"id": "Extension.extension:language.url",
"path": "Extension.extension.url",
"fixedUri": "language"
},
{
"id": "Extension.extension:language.value[x]",
"path": "Extension.extension.value[x]",
"min": 1,
"type": [
{
"code": "code"
}
],
"binding": {
"extension": [
{
"url": "http://hl7.org/fhir/tools/StructureDefinition/binding-definition",
"valueMarkdown": "The media type of the expression language."
},
{
"url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString": "ExpressionLanguage"
},
{
"extension": [
{
"url": "purpose",
"valueCode": "maximum"
},
{
"url": "valueSet",
"valueUri": "http://hl7.org/fhir/ValueSet/mimetypes"
}
]
}
],
"strength": "extensible",
"description": "The media type of the expression language.",
"valueSetReference": {
"reference": "http://hl7.org/fhir/ValueSet/expression-language"
}
}
},
{
"id": "Extension.extension:expression",
"path": "Extension.extension",
"sliceName": "expression",
"short": "Expression in specified language",
"definition": "An expression in the specified language that returns a value.",
"comment": "If Expression.expression and Expression.reference are both present, the Expression.expression might just be a name pointing something within the referenced content.",
"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]",
"min": 1,
"type": [
{
"code": "string"
}
]
},
{
"id": "Extension.extension:reference",
"path": "Extension.extension",
"sliceName": "reference",
"short": "Where the expression is found",
"definition": "A URI that defines where the expression is found.",
"comment": "If both a reference and an expression is found, the reference SHALL point to the same expression.",
"min": 0,
"max": "1"
},
{
"id": "Extension.extension:reference.extension",
"path": "Extension.extension.extension",
"max": "0"
},
{
"id": "Extension.extension:reference.url",
"path": "Extension.extension.url",
"fixedUri": "reference"
},
{
"id": "Extension.extension:reference.value[x]",
"path": "Extension.extension.value[x]",
"min": 1,
"type": [
{
"code": "uri"
}
]
},
{
"id": "Extension.url",
"path": "Extension.url",
"fixedUri": "http://hl7.org/fhir/StructureDefinition/variable"
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"min": 0,
"max": "0"
}
]
}
}