Cross-version Extension for R3.ExpansionProfile.fixedVersion for use in FHIR R4 - Definitions - FHIR Cross-Version Extensions package for FHIR R4 from FHIR R3 v0.0.1-snapshot-2

FHIR Cross-Version Extensions package for FHIR R4 from FHIR R3 - Version 0.0.1-snapshot-2. See the Directory of published versions

Extension: Ext_R3_ExpansionProfile_fixedVersion - Detailed Descriptions

Page standards status: Informative

Maturity Level: 0

Definitions for the ext-R3-ExpansionProfile.fixedVersion extension.

Differential Elements Table
Key Elements Table
Snapshot Elements Table

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

0. Extension
Definition	Fix use of a particular code system to a particular version.
Short	Fix use of a code system to a particular version
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Control	0..*
2. Extension.extension
Control	3..*
Slicing	This element introduces a set of slices on `Extension.extension`. The slices areUnordered and Closed, and can be differentiated using the following discriminators: value @ url
4. Extension.extension:system
Slice Name	system
Definition	The specific system for which to fix the version.
Short	System to have its version fixed
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Control	1..1
6. Extension.extension:system.url
Control	1..1
Fixed Value	`system`
8. Extension.extension:system.value[x]
Definition	The specific system for which to fix the version.
Short	System to have its version fixed
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Type	uri
[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:version
Slice Name	version
Definition	The version of the code system from which codes in the expansion should be included.
Short	Specific version of the code system referred to
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Control	1..1
12. Extension.extension:version.url
Control	1..1
Fixed Value	`version`
14. Extension.extension:version.value[x]
Definition	The version of the code system from which codes in the expansion should be included.
Short	Specific version of the code system referred to
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
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
16. Extension.extension:mode
Slice Name	mode
Definition	How to manage the intersection between a fixed version in a value set, and this fixed version of the system in the expansion profile.
Short	default \| check \| override
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Control	1..1
18. Extension.extension:mode.url
Control	1..1
Fixed Value	`mode`
20. Extension.extension:mode.value[x]
Definition	How to manage the intersection between a fixed version in a value set, and this fixed version of the system in the expansion profile.
Short	default \| check \| override
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Binding	The codes SHALL be taken from R3_system_version_processing_mode_for_R4 (0.0.1-snapshot-2) (required to `http://hl7.org/fhir/3.0/ValueSet/R3-system-version-processing-mode-for-R4\|0.0.1-snapshot-2`) How to manage the intersection between a fixed version in a value set, and a fixed version of the system in the expansion profile
Type	code
[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
22. Extension.url
Control	1..1
Fixed Value	`http://hl7.org/fhir/3.0/StructureDefinition/extension-ExpansionProfile.fixedVersion`

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

0. Extension
Definition	Fix use of a particular code system to a particular version. Optional Extension Element - found in all resources.
Short	Fix use of a code system to a particular versionOptional Extensions Element
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
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	30..*
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 ClosedOpen, and can be differentiated using the following discriminators: value @ url
4. Extension.extension:system
Slice Name	system
Definition	The specific system for which to fix the version.
Short	System to have its version fixedAdditional content defined by implementations
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Control	10..1*
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()`) 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:system.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	`system`
8. Extension.extension:system.value[x]
Definition	The specific system for which to fix the version. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	System to have its version fixedValue of extension
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Control	0..1
Type	uri, 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, 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:version
Slice Name	version
Definition	The version of the code system from which codes in the expansion should be included.
Short	Specific version of the code system referred toAdditional content defined by implementations
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Control	10..1*
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()`) 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:version.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	`version`
14. Extension.extension:version.value[x]
Definition	The version of the code system from which codes in the expansion should be included. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Specific version of the code system referred toValue of extension
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
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()))
16. Extension.extension:mode
Slice Name	mode
Definition	How to manage the intersection between a fixed version in a value set, and this fixed version of the system in the expansion profile.
Short	default \| check \| overrideAdditional content defined by implementations
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Control	10..1*
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()`) 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:mode.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	`mode`
20. Extension.extension:mode.value[x]
Definition	How to manage the intersection between a fixed version in a value set, and this fixed version of the system in the expansion profile. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	default \| check \| overrideValue of extension
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Control	0..1
Binding	The codes SHALL be taken from For codes, see R3_system_version_processing_mode_for_R4 (0.0.1-snapshot-2) (required to `http://hl7.org/fhir/3.0/ValueSet/R3-system-version-processing-mode-for-R4\|0.0.1-snapshot-2`) How to manage the intersection between a fixed version in a value set, and a fixed version of the system in the expansion profile
Type	code, 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, string, 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()))
22. 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/3.0/StructureDefinition/extension-ExpansionProfile.fixedVersion`

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

0. Extension
Definition	Fix use of a particular code system to a particular version.
Short	Fix use of a code system to a particular version
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
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	3..*
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 Closed, and can be differentiated using the following discriminators: value @ url
6. Extension.extension:system
Slice Name	system
Definition	The specific system for which to fix the version.
Short	System to have its version fixed
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Control	1..1
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()`)
8. Extension.extension:system.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:system.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:system.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	`system`
14. Extension.extension:system.value[x]
Definition	The specific system for which to fix the version.
Short	System to have its version fixed
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Control	0..1
Type	uri
[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:version
Slice Name	version
Definition	The version of the code system from which codes in the expansion should be included.
Short	Specific version of the code system referred to
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Control	1..1
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()`)
18. Extension.extension:version.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:version.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:version.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	`version`
24. Extension.extension:version.value[x]
Definition	The version of the code system from which codes in the expansion should be included.
Short	Specific version of the code system referred to
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
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())`)
26. Extension.extension:mode
Slice Name	mode
Definition	How to manage the intersection between a fixed version in a value set, and this fixed version of the system in the expansion profile.
Short	default \| check \| override
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Control	1..1
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()`)
28. Extension.extension:mode.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
30. Extension.extension:mode.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
32. Extension.extension:mode.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	`mode`
34. Extension.extension:mode.value[x]
Definition	How to manage the intersection between a fixed version in a value set, and this fixed version of the system in the expansion profile.
Short	default \| check \| override
Comments	`ExpansionProfile.fixedVersion` has no related element in R4:Parameters
Control	0..1
Binding	The codes SHALL be taken from R3_system_version_processing_mode_for_R4 (0.0.1-snapshot-2) (required to `http://hl7.org/fhir/3.0/ValueSet/R3-system-version-processing-mode-for-R4\|0.0.1-snapshot-2`) How to manage the intersection between a fixed version in a value set, and a fixed version of the system in the expansion profile
Type	code
[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())`)
36. 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/3.0/StructureDefinition/extension-ExpansionProfile.fixedVersion`
38. 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..1
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
[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())`)