Cross-version Extension for R4.ElementDefinition.pattern[x] for use in FHIR R4B - Definitions - FHIR Cross-Version Extensions package for FHIR R4B from FHIR R4 v0.0.1-snapshot-2

FHIR Cross-Version Extensions package for FHIR R4B from FHIR R4 - Version 0.0.1-snapshot-2. See the Directory of published versions

Extension: Ext_R4_ElementDefinition_pattern - Detailed Descriptions

Page standards status: Informative

Maturity Level: 0

Definitions for the ext-R4-ElementDefinition.pattern 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	Specifies a value that the value in the instance SHALL follow - that is, any value in the pattern must be found in the instance. Other additional values may be found too. This is effectively constraint by example. When pattern[x] is used to constrain a primitive, it means that the value provided in the pattern[x] must match the instance value exactly. When pattern[x] is used to constrain an array, it means that each element provided in the pattern[x] array must (recursively) match at least one element from the instance array. When pattern[x] is used to constrain a complex object, it means that each property in the pattern must be present in the complex object, and its value must recursively match -- i.e., If primitive: it must match exactly the pattern value If a complex object: it must match (recursively) the pattern value If an array: it must match (recursively) the pattern value.
Short	Value must have at least these property values
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1
2. Extension.extension
Control	0..*
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:versionId
Slice Name	versionId
Definition	The version specific identifier, as it appears in the version portion of the URL. This value changes when the resource is created, updated, or deleted.
Short	Version specific identifier
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1
6. Extension.extension:versionId.url
Control	1..1
Fixed Value	`versionId`
8. Extension.extension:versionId.value[x]
Definition	The version specific identifier, as it appears in the version portion of the URL. This value changes when the resource is created, updated, or deleted.
Short	Version specific identifier
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Type	id
[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:lastUpdated
Slice Name	lastUpdated
Definition	When the resource last changed - e.g. when the version changed.
Short	When the resource version last changed
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1
12. Extension.extension:lastUpdated.url
Control	1..1
Fixed Value	`lastUpdated`
14. Extension.extension:lastUpdated.value[x]
Definition	When the resource last changed - e.g. when the version changed.
Short	When the resource version last changed
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Type	instant
[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:source
Slice Name	source
Definition	A uri that identifies the source system of the resource. This provides a minimal amount of Provenance information that can be used to track or differentiate the source of information in the resource. The source may identify another FHIR server, document, message, database, etc.
Short	Identifies where the resource comes from
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1
18. Extension.extension:source.url
Control	1..1
Fixed Value	`source`
20. Extension.extension:source.value[x]
Definition	A uri that identifies the source system of the resource. This provides a minimal amount of Provenance information that can be used to track or differentiate the source of information in the resource. The source may identify another FHIR server, document, message, database, etc.
Short	Identifies where the resource comes from
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
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
22. Extension.extension:profile
Slice Name	profile
Definition	A list of profiles (references to StructureDefinition resources) that this resource claims to conform to. The URL is a reference to StructureDefinition.url.
Short	Profiles this resource claims to conform to
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..*
24. Extension.extension:profile.url
Control	1..1
Fixed Value	`profile`
26. Extension.extension:profile.value[x]
Definition	A list of profiles (references to StructureDefinition resources) that this resource claims to conform to. The URL is a reference to StructureDefinition.url.
Short	Profiles this resource claims to conform to
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Type	canonical
[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
28. Extension.extension:security
Slice Name	security
Definition	Security labels applied to this resource. These tags connect specific resources to the overall security policy and infrastructure.
Short	Security Labels applied to this resource
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..*
30. Extension.extension:security.url
Control	1..1
Fixed Value	`security`
32. Extension.extension:security.value[x]
Definition	Security labels applied to this resource. These tags connect specific resources to the overall security policy and infrastructure.
Short	Security Labels applied to this resource
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Binding	Unless not suitable, these codes SHALL be taken from R4_security_labels_for_R4B (0.0.1-snapshot-2) (extensible to `http://hl7.org/fhir/4.0/ValueSet/R4-security-labels-for-R4B\|0.0.1-snapshot-2`) Security Labels from the Healthcare Privacy and Security Classification System.
Type	Coding
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
34. Extension.extension:tag
Slice Name	tag
Definition	Tags applied to this resource. Tags are intended to be used to identify and relate resources to process and workflow, and applications are not required to consider the tags when interpreting the meaning of a resource.
Short	Tags applied to this resource
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..*
36. Extension.extension:tag.url
Control	1..1
Fixed Value	`tag`
38. Extension.extension:tag.value[x]
Definition	Tags applied to this resource. Tags are intended to be used to identify and relate resources to process and workflow, and applications are not required to consider the tags when interpreting the meaning of a resource.
Short	Tags applied to this resource
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Binding	For example codes, see R4_common_tags_for_R4B (0.0.1-snapshot-2) (example to `http://hl7.org/fhir/4.0/ValueSet/R4-common-tags-for-R4B\|0.0.1-snapshot-2`) Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".
Type	Coding
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
40. Extension.extension:_datatype
Slice Name	_datatype
Definition	Data type name for ElementDefinition.pattern[x] from FHIR R4
Short	Data type name for ElementDefinition.pattern[x] from FHIR R4
Control	0..1
Type	Extension(Datatype) (Extension Type: string)
42. Extension.extension:_datatype.value[x]
Comments	Must be: Meta
Control	1..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
Fixed Value	`Meta`
44. Extension.url
Control	1..1
Fixed Value	`http://hl7.org/fhir/4.0/StructureDefinition/extension-ElementDefinition.pattern`
46. Extension.value[x]
Definition	Specifies a value that the value in the instance SHALL follow - that is, any value in the pattern must be found in the instance. Other additional values may be found too. This is effectively constraint by example. When pattern[x] is used to constrain a primitive, it means that the value provided in the pattern[x] must match the instance value exactly. When pattern[x] is used to constrain an array, it means that each element provided in the pattern[x] array must (recursively) match at least one element from the instance array. When pattern[x] is used to constrain a complex object, it means that each property in the pattern must be present in the complex object, and its value must recursively match -- i.e., If primitive: it must match exactly the pattern value If a complex object: it must match (recursively) the pattern value If an array: it must match (recursively) the pattern value.
Short	Value must have at least these property values
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
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, RatioRange, CodeableReference
[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

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

0. Extension
Definition	Specifies a value that the value in the instance SHALL follow - that is, any value in the pattern must be found in the instance. Other additional values may be found too. This is effectively constraint by example. When pattern[x] is used to constrain a primitive, it means that the value provided in the pattern[x] must match the instance value exactly. When pattern[x] is used to constrain an array, it means that each element provided in the pattern[x] array must (recursively) match at least one element from the instance array. When pattern[x] is used to constrain a complex object, it means that each property in the pattern must be present in the complex object, and its value must recursively match -- i.e., If primitive: it must match exactly the pattern value If a complex object: it must match (recursively) the pattern value If an array: it must match (recursively) the pattern value. Optional Extension Element - found in all resources.
Short	Value must have at least these property valuesOptional Extensions Element
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1* 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 unless an empty Parameters resource (`hasValue() or (children().count() > id.count()) or $this is Parameters`) 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 unless an empty Parameters resource (hasValue() or (children().count() > id.count()) or $this is Parameters) 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 ClosedOpen, and can be differentiated using the following discriminators: value @ url
4. Extension.extension:versionId
Slice Name	versionId
Definition	The version specific identifier, as it appears in the version portion of the URL. This value changes when the resource is created, updated, or deleted.
Short	Version specific identifierAdditional content defined by implementations
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..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:versionId.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	`versionId`
8. Extension.extension:versionId.value[x]
Definition	The version specific identifier, as it appears in the version portion of the URL. This value changes when the resource is created, updated, or deleted. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Version specific identifierValue of extension
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1
Type	id, date, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, Coding, SampledData, 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, Expression, CodeableReference, 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:lastUpdated
Slice Name	lastUpdated
Definition	When the resource last changed - e.g. when the version changed.
Short	When the resource version last changedAdditional content defined by implementations
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..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:lastUpdated.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	`lastUpdated`
14. Extension.extension:lastUpdated.value[x]
Definition	When the resource last changed - e.g. when the version changed. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	When the resource version last changedValue of extension
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1
Type	instant, date, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, CodeableReference, 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:source
Slice Name	source
Definition	A uri that identifies the source system of the resource. This provides a minimal amount of Provenance information that can be used to track or differentiate the source of information in the resource. The source may identify another FHIR server, document, message, database, etc.
Short	Identifies where the resource comes fromAdditional content defined by implementations
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..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:source.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	`source`
20. Extension.extension:source.value[x]
Definition	A uri that identifies the source system of the resource. This provides a minimal amount of Provenance information that can be used to track or differentiate the source of information in the resource. The source may identify another FHIR server, document, message, database, etc. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Identifies where the resource comes fromValue of extension
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1
Type	uri, date, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, 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, CodeableReference, 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.extension:profile
Slice Name	profile
Definition	A list of profiles (references to StructureDefinition resources) that this resource claims to conform to. The URL is a reference to StructureDefinition.url.
Short	Profiles this resource claims to conform toAdditional content defined by implementations
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
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()`) 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())
24. Extension.extension:profile.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	`profile`
26. Extension.extension:profile.value[x]
Definition	A list of profiles (references to StructureDefinition resources) that this resource claims to conform to. The URL is a reference to StructureDefinition.url. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Profiles this resource claims to conform toValue of extension
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1
Type	canonical, date, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, Coding, SampledData, id, positiveInt, Distance, Period, Duration, 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, Expression, CodeableReference, 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()))
28. Extension.extension:security
Slice Name	security
Definition	Security labels applied to this resource. These tags connect specific resources to the overall security policy and infrastructure.
Short	Security Labels applied to this resourceAdditional content defined by implementations
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
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()`) 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())
30. Extension.extension:security.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	`security`
32. Extension.extension:security.value[x]
Definition	Security labels applied to this resource. These tags connect specific resources to the overall security policy and infrastructure. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Security Labels applied to this resourceValue of extension
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1
Binding	Unless not suitable, these codes SHALL be taken from For codes, see R4_security_labels_for_R4B (0.0.1-snapshot-2) (extensible to `http://hl7.org/fhir/4.0/ValueSet/R4-security-labels-for-R4B\|0.0.1-snapshot-2`) Security Labels from the Healthcare Privacy and Security Classification System.
Type	Coding, date, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, 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, Expression, CodeableReference, 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()))
34. Extension.extension:tag
Slice Name	tag
Definition	Tags applied to this resource. Tags are intended to be used to identify and relate resources to process and workflow, and applications are not required to consider the tags when interpreting the meaning of a resource.
Short	Tags applied to this resourceAdditional content defined by implementations
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
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()`) 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())
36. Extension.extension:tag.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	`tag`
38. Extension.extension:tag.value[x]
Definition	Tags applied to this resource. Tags are intended to be used to identify and relate resources to process and workflow, and applications are not required to consider the tags when interpreting the meaning of a resource. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Tags applied to this resourceValue of extension
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1
Binding	For example codes, see For codes, see R4_common_tags_for_R4B (0.0.1-snapshot-2) (example to `http://hl7.org/fhir/4.0/ValueSet/R4-common-tags-for-R4B\|0.0.1-snapshot-2`) Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".
Type	Coding, date, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, 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, Expression, CodeableReference, 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()))
40. Extension.extension:_datatype
Slice Name	_datatype
Definition	Data type name for ElementDefinition.pattern[x] from FHIR R4
Short	Data type name for ElementDefinition.pattern[x] from FHIR R4
Control	0..1
Type	Extension(Datatype) (Extension Type: string)
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())
42. Extension.extension:_datatype.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..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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
44. Extension.extension:_datatype.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/StructureDefinition/_datatype`
46. Extension.extension:_datatype.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Comments	Must be: Meta
Control	10..1 This element is affected by the following invariants: ext-1
Type	string, date, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, 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, CodeableReference, 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
Fixed Value	`Meta`
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()))
48. 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/4.0/StructureDefinition/extension-ElementDefinition.pattern`
50. Extension.value[x]
Definition	Specifies a value that the value in the instance SHALL follow - that is, any value in the pattern must be found in the instance. Other additional values may be found too. This is effectively constraint by example. When pattern[x] is used to constrain a primitive, it means that the value provided in the pattern[x] must match the instance value exactly. When pattern[x] is used to constrain an array, it means that each element provided in the pattern[x] array must (recursively) match at least one element from the instance array. When pattern[x] is used to constrain a complex object, it means that each property in the pattern must be present in the complex object, and its value must recursively match -- i.e., If primitive: it must match exactly the pattern value If a complex object: it must match (recursively) the pattern value If an array: it must match (recursively) the pattern value. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value must have at least these property valuesValue of extension
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
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, RatioRange, CodeableReference
[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()))

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

0. Extension
Definition	Specifies a value that the value in the instance SHALL follow - that is, any value in the pattern must be found in the instance. Other additional values may be found too. This is effectively constraint by example. When pattern[x] is used to constrain a primitive, it means that the value provided in the pattern[x] must match the instance value exactly. When pattern[x] is used to constrain an array, it means that each element provided in the pattern[x] array must (recursively) match at least one element from the instance array. When pattern[x] is used to constrain a complex object, it means that each property in the pattern must be present in the complex object, and its value must recursively match -- i.e., If primitive: it must match exactly the pattern value If a complex object: it must match (recursively) the pattern value If an array: it must match (recursively) the pattern value.
Short	Value must have at least these property values
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1 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 unless an empty Parameters resource (`hasValue() or (children().count() > id.count()) or $this is Parameters`) 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	id
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 Closed, and can be differentiated using the following discriminators: value @ url
6. Extension.extension:versionId
Slice Name	versionId
Definition	The version specific identifier, as it appears in the version portion of the URL. This value changes when the resource is created, updated, or deleted.
Short	Version specific identifier
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..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:versionId.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	id
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
10. Extension.extension:versionId.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:versionId.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	`versionId`
14. Extension.extension:versionId.value[x]
Definition	The version specific identifier, as it appears in the version portion of the URL. This value changes when the resource is created, updated, or deleted.
Short	Version specific identifier
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1
Type	id
[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:lastUpdated
Slice Name	lastUpdated
Definition	When the resource last changed - e.g. when the version changed.
Short	When the resource version last changed
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..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:lastUpdated.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	id
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
20. Extension.extension:lastUpdated.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:lastUpdated.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	`lastUpdated`
24. Extension.extension:lastUpdated.value[x]
Definition	When the resource last changed - e.g. when the version changed.
Short	When the resource version last changed
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1
Type	instant
[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:source
Slice Name	source
Definition	A uri that identifies the source system of the resource. This provides a minimal amount of Provenance information that can be used to track or differentiate the source of information in the resource. The source may identify another FHIR server, document, message, database, etc.
Short	Identifies where the resource comes from
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..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:source.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	id
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
30. Extension.extension:source.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:source.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	`source`
34. Extension.extension:source.value[x]
Definition	A uri that identifies the source system of the resource. This provides a minimal amount of Provenance information that can be used to track or differentiate the source of information in the resource. The source may identify another FHIR server, document, message, database, etc.
Short	Identifies where the resource comes from
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
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())`)
36. Extension.extension:profile
Slice Name	profile
Definition	A list of profiles (references to StructureDefinition resources) that this resource claims to conform to. The URL is a reference to StructureDefinition.url.
Short	Profiles this resource claims to conform to
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
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()`)
38. Extension.extension:profile.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	id
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
40. Extension.extension:profile.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
42. Extension.extension:profile.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	`profile`
44. Extension.extension:profile.value[x]
Definition	A list of profiles (references to StructureDefinition resources) that this resource claims to conform to. The URL is a reference to StructureDefinition.url.
Short	Profiles this resource claims to conform to
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1
Type	canonical
[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())`)
46. Extension.extension:security
Slice Name	security
Definition	Security labels applied to this resource. These tags connect specific resources to the overall security policy and infrastructure.
Short	Security Labels applied to this resource
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
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()`)
48. Extension.extension:security.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	id
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
50. Extension.extension:security.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
52. Extension.extension:security.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	`security`
54. Extension.extension:security.value[x]
Definition	Security labels applied to this resource. These tags connect specific resources to the overall security policy and infrastructure.
Short	Security Labels applied to this resource
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1
Binding	Unless not suitable, these codes SHALL be taken from R4_security_labels_for_R4B (0.0.1-snapshot-2) (extensible to `http://hl7.org/fhir/4.0/ValueSet/R4-security-labels-for-R4B\|0.0.1-snapshot-2`) Security Labels from the Healthcare Privacy and Security Classification System.
Type	Coding
[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())`)
56. Extension.extension:tag
Slice Name	tag
Definition	Tags applied to this resource. Tags are intended to be used to identify and relate resources to process and workflow, and applications are not required to consider the tags when interpreting the meaning of a resource.
Short	Tags applied to this resource
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
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()`)
58. Extension.extension:tag.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	id
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
60. Extension.extension:tag.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
62. Extension.extension:tag.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	`tag`
64. Extension.extension:tag.value[x]
Definition	Tags applied to this resource. Tags are intended to be used to identify and relate resources to process and workflow, and applications are not required to consider the tags when interpreting the meaning of a resource.
Short	Tags applied to this resource
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
Control	0..1
Binding	For example codes, see R4_common_tags_for_R4B (0.0.1-snapshot-2) (example to `http://hl7.org/fhir/4.0/ValueSet/R4-common-tags-for-R4B\|0.0.1-snapshot-2`) Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".
Type	Coding
[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())`)
66. Extension.extension:_datatype
Slice Name	_datatype
Definition	Data type name for ElementDefinition.pattern[x] from FHIR R4
Short	Data type name for ElementDefinition.pattern[x] from FHIR R4
Control	0..1
Type	Extension(Datatype) (Extension Type: string)
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()`)
68. Extension.extension:_datatype.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 This element is affected by the following invariants: ele-1
Type	id
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
70. Extension.extension:_datatype.extension
Definition	An Extension
Short	Extension
Control	0..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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
72. Extension.extension:_datatype.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/StructureDefinition/_datatype`
74. Extension.extension:_datatype.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
Comments	Must be: Meta
Control	1..1 This element is affected by the following invariants: ext-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
Fixed Value	`Meta`
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
76. 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/4.0/StructureDefinition/extension-ElementDefinition.pattern`
78. Extension.value[x]
Definition	Specifies a value that the value in the instance SHALL follow - that is, any value in the pattern must be found in the instance. Other additional values may be found too. This is effectively constraint by example. When pattern[x] is used to constrain a primitive, it means that the value provided in the pattern[x] must match the instance value exactly. When pattern[x] is used to constrain an array, it means that each element provided in the pattern[x] array must (recursively) match at least one element from the instance array. When pattern[x] is used to constrain a complex object, it means that each property in the pattern must be present in the complex object, and its value must recursively match -- i.e., If primitive: it must match exactly the pattern value If a complex object: it must match (recursively) the pattern value If an array: it must match (recursively) the pattern value.
Short	Value must have at least these property values
Comments	`ElementDefinition.pattern[x]` maps to R4B `ElementDefinition.pattern[x]`. Type `Meta` has no mapping So is mapped as SourceIsBroaderThanTarget.
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
[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())`)