ExtensionRequestOrchestration_Action_DynamicValue - Definitions - Extensions for Using Data Elements from FHIR R5 in FHIR R4 v0.1.0

Extensions for Using Data Elements from FHIR R5 in FHIR R4 - Downloaded Version null See the Directory of published versions

Extension: ExtensionRequestOrchestration_Action_DynamicValue - Detailed Descriptions

Page standards status: Trial-use

Maturity Level: 0

Definitions for the ext-R5-RequestOrchestration.act.dynamicValue extension.

Key Elements Table
Differential Elements Table
Snapshot Elements Table

Guidance on how to interpret the contents of this table can be foundhere

0. Extension
Definition	R5: `RequestOrchestration.action.dynamicValue` (new:BackboneElement) Optional Extension Element - found in all resources.
Short	R5: Dynamic aspects of the definition (new)Optional Extensions Element
Comments	Element `RequestOrchestration.action.dynamicValue` has a context of RequestGroup.action based on following the parent source element upwards and mapping to `RequestGroup`. Element `RequestOrchestration.action.dynamicValue` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element). Dynamic values are applied in the order in which they are defined in the RequestOrchestration resource. Note that when dynamic values are also specified by a referenced ActivityDefinition, the dynamicValues from the ActivityDefinition are applied first, followed by the dynamicValues specified here. In addition, if both a transform and dynamic values are specific, the dynamic values are applied to the result of the transform.
Control	0..* This element is affected by the following invariants: ele-1
Is Modifier	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
2. Extension.extension
Definition	An Extension 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 manageable, 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.
Short	ExtensionAdditional content defined by implementations
Comments	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.
Control	0..*
Type	Extension
Is Modifier	false
Summary	false
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
4. Extension.extension:path
Slice Name	path
Definition	R5: `RequestOrchestration.action.dynamicValue.path` (new:string)
Short	R5: The path to the element to be set dynamically (new)Additional content defined by implementations
Comments	Element `RequestOrchestration.action.dynamicValue.path` is part of an existing definition because parent element `RequestOrchestration.action.dynamicValue` requires a cross-version extension. Element `RequestOrchestration.action.dynamicValue.path` has a context of RequestGroup.action based on following the parent source element upwards and mapping to `RequestGroup`. Element `RequestOrchestration.action.dynamicValue.path` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element). To specify the path to the current action being realized, the %action environment variable is available in this path. For example, to specify the description element of the target action, the path would be %action.description. The path attribute contains a Simple FHIRPath Subset that allows path traversal, but not calculation.
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `RequestOrchestration.action.dynamicValue.path` is part of an existing definition because parent element `RequestOrchestration.action.dynamicValue` requires a cross-version extension. Element `RequestOrchestration.action.dynamicValue.path` has a context of RequestGroup.action based on following the parent source element upwards and mapping to `RequestGroup`. Element `RequestOrchestration.action.dynamicValue.path` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
6. Extension.extension:path.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	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.
Control	1..1
Type	uri
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
Fixed Value	`path`
8. Extension.extension:path.value[x]
Definition	The path to the element to be customized. This is the path on the resource that will hold the result of the calculation defined by the expression. The specified path SHALL be a FHIRPath resolvable on the specified target type of the ActivityDefinition, and SHALL consist only of identifiers, constant indexers, and a restricted subset of functions. The path is allowed to contain qualifiers (.) to traverse sub-elements, as well as indexers ([x]) to traverse multiple-cardinality sub-elements (see the Simple FHIRPath Profile for full details). Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	The path to the element to be set dynamicallyValue of extension
Comments	To specify the path to the current action being realized, the %action environment variable is available in this path. For example, to specify the description element of the target action, the path would be %action.description. The path attribute contains a Simple FHIRPath Subset that allows path traversal, but not calculation.
Control	0..1
Type	string, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
10. Extension.extension:expression
Slice Name	expression
Definition	R5: `RequestOrchestration.action.dynamicValue.expression` (new:Expression)
Short	R5: An expression that provides the dynamic value for the customization (new)Additional content defined by implementations
Comments	Element `RequestOrchestration.action.dynamicValue.expression` is part of an existing definition because parent element `RequestOrchestration.action.dynamicValue` requires a cross-version extension. Element `RequestOrchestration.action.dynamicValue.expression` has a context of RequestGroup.action based on following the parent source element upwards and mapping to `RequestGroup`. Element `RequestOrchestration.action.dynamicValue.expression` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element). The expression may be inlined or may be a reference to a named expression within a logic library referenced by the library element.
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `RequestOrchestration.action.dynamicValue.expression` is part of an existing definition because parent element `RequestOrchestration.action.dynamicValue` requires a cross-version extension. Element `RequestOrchestration.action.dynamicValue.expression` has a context of RequestGroup.action based on following the parent source element upwards and mapping to `RequestGroup`. Element `RequestOrchestration.action.dynamicValue.expression` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
12. Extension.extension:expression.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	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.
Control	1..1
Type	uri
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
Fixed Value	`expression`
14. Extension.extension:expression.value[x]
Definition	An expression specifying the value of the customized element. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	An expression that provides the dynamic value for the customizationValue of extension
Comments	The expression may be inlined or may be a reference to a named expression within a logic library referenced by the library element.
Control	0..1
Type	Expression, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Signature, unsignedInt, time
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
16. Extension.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	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.
Control	1..1
Type	uri
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
Fixed Value	`http://hl7.org/fhir/5.0/StructureDefinition/extension-RequestOrchestration.action.dynamicValue`
18. Extension.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..01
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

Guidance on how to interpret the contents of this table can be foundhere

0. Extension
Definition	R5: `RequestOrchestration.action.dynamicValue` (new:BackboneElement)
Short	R5: Dynamic aspects of the definition (new)
Comments	Element `RequestOrchestration.action.dynamicValue` has a context of RequestGroup.action based on following the parent source element upwards and mapping to `RequestGroup`. Element `RequestOrchestration.action.dynamicValue` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element). Dynamic values are applied in the order in which they are defined in the RequestOrchestration resource. Note that when dynamic values are also specified by a referenced ActivityDefinition, the dynamicValues from the ActivityDefinition are applied first, followed by the dynamicValues specified here. In addition, if both a transform and dynamic values are specific, the dynamic values are applied to the result of the transform.
Control	0..*
Is Modifier	false
2. Extension.extension
Control	0..*
Slicing	This element introduces a set of slices on `Extension.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
4. Extension.extension:path
Slice Name	path
Definition	R5: `RequestOrchestration.action.dynamicValue.path` (new:string)
Short	R5: The path to the element to be set dynamically (new)
Comments	Element `RequestOrchestration.action.dynamicValue.path` is part of an existing definition because parent element `RequestOrchestration.action.dynamicValue` requires a cross-version extension. Element `RequestOrchestration.action.dynamicValue.path` has a context of RequestGroup.action based on following the parent source element upwards and mapping to `RequestGroup`. Element `RequestOrchestration.action.dynamicValue.path` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element). To specify the path to the current action being realized, the %action environment variable is available in this path. For example, to specify the description element of the target action, the path would be %action.description. The path attribute contains a Simple FHIRPath Subset that allows path traversal, but not calculation.
Control	0..1
Requirements	Element `RequestOrchestration.action.dynamicValue.path` is part of an existing definition because parent element `RequestOrchestration.action.dynamicValue` requires a cross-version extension. Element `RequestOrchestration.action.dynamicValue.path` has a context of RequestGroup.action based on following the parent source element upwards and mapping to `RequestGroup`. Element `RequestOrchestration.action.dynamicValue.path` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
6. Extension.extension:path.url
Control	1..1
Fixed Value	`path`
8. Extension.extension:path.value[x]
Definition	The path to the element to be customized. This is the path on the resource that will hold the result of the calculation defined by the expression. The specified path SHALL be a FHIRPath resolvable on the specified target type of the ActivityDefinition, and SHALL consist only of identifiers, constant indexers, and a restricted subset of functions. The path is allowed to contain qualifiers (.) to traverse sub-elements, as well as indexers ([x]) to traverse multiple-cardinality sub-elements (see the Simple FHIRPath Profile for full details).
Short	The path to the element to be set dynamically
Comments	To specify the path to the current action being realized, the %action environment variable is available in this path. For example, to specify the description element of the target action, the path would be %action.description. The path attribute contains a Simple FHIRPath Subset that allows path traversal, but not calculation.
Control	0..1
Type	string
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
10. Extension.extension:expression
Slice Name	expression
Definition	R5: `RequestOrchestration.action.dynamicValue.expression` (new:Expression)
Short	R5: An expression that provides the dynamic value for the customization (new)
Comments	Element `RequestOrchestration.action.dynamicValue.expression` is part of an existing definition because parent element `RequestOrchestration.action.dynamicValue` requires a cross-version extension. Element `RequestOrchestration.action.dynamicValue.expression` has a context of RequestGroup.action based on following the parent source element upwards and mapping to `RequestGroup`. Element `RequestOrchestration.action.dynamicValue.expression` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element). The expression may be inlined or may be a reference to a named expression within a logic library referenced by the library element.
Control	0..1
Requirements	Element `RequestOrchestration.action.dynamicValue.expression` is part of an existing definition because parent element `RequestOrchestration.action.dynamicValue` requires a cross-version extension. Element `RequestOrchestration.action.dynamicValue.expression` has a context of RequestGroup.action based on following the parent source element upwards and mapping to `RequestGroup`. Element `RequestOrchestration.action.dynamicValue.expression` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
12. Extension.extension:expression.url
Control	1..1
Fixed Value	`expression`
14. Extension.extension:expression.value[x]
Definition	An expression specifying the value of the customized element.
Short	An expression that provides the dynamic value for the customization
Comments	The expression may be inlined or may be a reference to a named expression within a logic library referenced by the library element.
Control	0..1
Type	Expression
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
16. Extension.url
Control	1..1
Fixed Value	`http://hl7.org/fhir/5.0/StructureDefinition/extension-RequestOrchestration.action.dynamicValue`
18. Extension.value[x]
Control	0..0

Guidance on how to interpret the contents of this table can be foundhere

0. Extension
Definition	R5: `RequestOrchestration.action.dynamicValue` (new:BackboneElement)
Short	R5: Dynamic aspects of the definition (new)
Comments	Element `RequestOrchestration.action.dynamicValue` has a context of RequestGroup.action based on following the parent source element upwards and mapping to `RequestGroup`. Element `RequestOrchestration.action.dynamicValue` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element). Dynamic values are applied in the order in which they are defined in the RequestOrchestration resource. Note that when dynamic values are also specified by a referenced ActivityDefinition, the dynamicValues from the ActivityDefinition are applied first, followed by the dynamicValues specified here. In addition, if both a transform and dynamic values are specific, the dynamic values are applied to the result of the transform.
Control	0..* This element is affected by the following invariants: ele-1
Is Modifier	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
2. Extension.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
4. Extension.extension
Definition	An Extension
Short	Extension
Control	0..*
Type	Extension
Is Modifier	false
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
6. Extension.extension:path
Slice Name	path
Definition	R5: `RequestOrchestration.action.dynamicValue.path` (new:string)
Short	R5: The path to the element to be set dynamically (new)
Comments	Element `RequestOrchestration.action.dynamicValue.path` is part of an existing definition because parent element `RequestOrchestration.action.dynamicValue` requires a cross-version extension. Element `RequestOrchestration.action.dynamicValue.path` has a context of RequestGroup.action based on following the parent source element upwards and mapping to `RequestGroup`. Element `RequestOrchestration.action.dynamicValue.path` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element). To specify the path to the current action being realized, the %action environment variable is available in this path. For example, to specify the description element of the target action, the path would be %action.description. The path attribute contains a Simple FHIRPath Subset that allows path traversal, but not calculation.
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `RequestOrchestration.action.dynamicValue.path` is part of an existing definition because parent element `RequestOrchestration.action.dynamicValue` requires a cross-version extension. Element `RequestOrchestration.action.dynamicValue.path` has a context of RequestGroup.action based on following the parent source element upwards and mapping to `RequestGroup`. Element `RequestOrchestration.action.dynamicValue.path` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
8. Extension.extension:path.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
10. Extension.extension:path.extension
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 manageable, 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.
Short	Additional content defined by implementations
Comments	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.
Control	0..*
Type	Extension
Is Modifier	false
Summary	false
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
12. Extension.extension:path.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	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.
Control	1..1
Type	uri
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
Fixed Value	`path`
14. Extension.extension:path.value[x]
Definition	The path to the element to be customized. This is the path on the resource that will hold the result of the calculation defined by the expression. The specified path SHALL be a FHIRPath resolvable on the specified target type of the ActivityDefinition, and SHALL consist only of identifiers, constant indexers, and a restricted subset of functions. The path is allowed to contain qualifiers (.) to traverse sub-elements, as well as indexers ([x]) to traverse multiple-cardinality sub-elements (see the Simple FHIRPath Profile for full details).
Short	The path to the element to be set dynamically
Comments	To specify the path to the current action being realized, the %action environment variable is available in this path. For example, to specify the description element of the target action, the path would be %action.description. The path attribute contains a Simple FHIRPath Subset that allows path traversal, but not calculation.
Control	0..1
Type	string
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
16. Extension.extension:expression
Slice Name	expression
Definition	R5: `RequestOrchestration.action.dynamicValue.expression` (new:Expression)
Short	R5: An expression that provides the dynamic value for the customization (new)
Comments	Element `RequestOrchestration.action.dynamicValue.expression` is part of an existing definition because parent element `RequestOrchestration.action.dynamicValue` requires a cross-version extension. Element `RequestOrchestration.action.dynamicValue.expression` has a context of RequestGroup.action based on following the parent source element upwards and mapping to `RequestGroup`. Element `RequestOrchestration.action.dynamicValue.expression` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element). The expression may be inlined or may be a reference to a named expression within a logic library referenced by the library element.
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `RequestOrchestration.action.dynamicValue.expression` is part of an existing definition because parent element `RequestOrchestration.action.dynamicValue` requires a cross-version extension. Element `RequestOrchestration.action.dynamicValue.expression` has a context of RequestGroup.action based on following the parent source element upwards and mapping to `RequestGroup`. Element `RequestOrchestration.action.dynamicValue.expression` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
18. Extension.extension:expression.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
20. Extension.extension:expression.extension
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 manageable, 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.
Short	Additional content defined by implementations
Comments	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.
Control	0..*
Type	Extension
Is Modifier	false
Summary	false
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
22. Extension.extension:expression.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	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.
Control	1..1
Type	uri
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
Fixed Value	`expression`
24. Extension.extension:expression.value[x]
Definition	An expression specifying the value of the customized element.
Short	An expression that provides the dynamic value for the customization
Comments	The expression may be inlined or may be a reference to a named expression within a logic library referenced by the library element.
Control	0..1
Type	Expression
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
26. Extension.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	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.
Control	1..1
Type	uri
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
Fixed Value	`http://hl7.org/fhir/5.0/StructureDefinition/extension-RequestOrchestration.action.dynamicValue`
28. Extension.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..0
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)