Cross-version Extension for R5.EvidenceReport.relatesTo.target for use in FHIR R4B - Definitions - FHIR Cross-Version Extensions package for FHIR R4B from FHIR R5 v0.0.1-snapshot-2

FHIR Cross-Version Extensions package for FHIR R4B from FHIR R5 - Version 0.0.1-snapshot-2. See the Directory of published versions

Extension: Ext_R5_EvidenceReport_re_target - Detailed Descriptions

Page standards status: Informative

Maturity Level: 0

Definitions for the ext-R5-EvidenceReport.re.target 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	The target composition/document of this relationship.
Short	Target of the relationship
Comments	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Control	1..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:url
Slice Name	url
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship URL
Control	0..1
6. Extension.extension:url.url
Control	1..1
Fixed Value	`url`
8. Extension.extension:url.value[x]
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship URL
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:identifier
Slice Name	identifier
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship Identifier
Control	0..1
12. Extension.extension:identifier.url
Control	1..1
Fixed Value	`identifier`
14. Extension.extension:identifier.value[x]
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship Identifier
Type	Identifier
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
16. Extension.extension:display
Slice Name	display
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship Display
Control	0..1
18. Extension.extension:display.url
Control	1..1
Fixed Value	`display`
20. Extension.extension:display.value[x]
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship Display
Type	markdown
[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:resource
Slice Name	resource
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship Resource reference
Control	0..1
24. Extension.extension:resource.url
Control	1..1
Fixed Value	`resource`
26. Extension.extension:resource.value[x]
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship Resource reference
Type	Reference
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
28. Extension.url
Control	1..1
Fixed Value	`http://hl7.org/fhir/5.0/StructureDefinition/extension-EvidenceReport.relatesTo.target`

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

0. Extension
Definition	The target composition/document of this relationship. Optional Extension Element - found in all resources.
Short	Target of the relationshipOptional Extensions Element
Comments	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Control	10..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:url
Slice Name	url
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship URLAdditional content defined by implementations
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:url.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	`url`
8. Extension.extension:url.value[x]
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Target of the relationship URLValue of extension
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()))
10. Extension.extension:identifier
Slice Name	identifier
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship IdentifierAdditional content defined by implementations
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:identifier.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	`identifier`
14. Extension.extension:identifier.value[x]
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Target of the relationship IdentifierValue of extension
Control	0..1
Type	Identifier, date, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, 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, 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()))
16. Extension.extension:display
Slice Name	display
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship DisplayAdditional content defined by implementations
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:display.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	`display`
20. Extension.extension:display.value[x]
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Target of the relationship DisplayValue of extension
Control	0..1
Type	markdown, 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, 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()))
22. Extension.extension:resource
Slice Name	resource
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship Resource referenceAdditional content defined by implementations
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())
24. Extension.extension:resource.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	`resource`
26. Extension.extension:resource.value[x]
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Target of the relationship Resource referenceValue of extension
Control	0..1
Type	Reference, 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, 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()))
28. Extension.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
Fixed Value	`http://hl7.org/fhir/5.0/StructureDefinition/extension-EvidenceReport.relatesTo.target`

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

0. Extension
Definition	The target composition/document of this relationship.
Short	Target of the relationship
Comments	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Control	1..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:url
Slice Name	url
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship URL
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:url.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:url.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:url.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	`url`
14. Extension.extension:url.value[x]
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship URL
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:identifier
Slice Name	identifier
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship Identifier
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:identifier.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:identifier.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:identifier.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	`identifier`
24. Extension.extension:identifier.value[x]
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship Identifier
Control	0..1
Type	Identifier
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
26. Extension.extension:display
Slice Name	display
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship Display
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:display.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:display.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:display.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	`display`
34. Extension.extension:display.value[x]
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship Display
Control	0..1
Type	markdown
[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:resource
Slice Name	resource
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship Resource reference
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()`)
38. Extension.extension:resource.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:resource.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:resource.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	`resource`
44. Extension.extension:resource.value[x]
Definition	`EvidenceReport.relatesTo.target` maps to R4B `EvidenceReport.relatesTo.target[x]`. Has no type mapping So is mapped as SourceIsBroaderThanTarget.
Short	Target of the relationship Resource reference
Control	0..1
Type	Reference
[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())`)
46. Extension.url
Definition	Source of the definition for the extension code - a logical name or a URL.
Short	identifies the meaning of the extension
Comments	The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.
Control	1..1
Type	uri
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
Fixed Value	`http://hl7.org/fhir/5.0/StructureDefinition/extension-EvidenceReport.relatesTo.target`
48. 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, CodeableReference, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, RatioRange, 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())`)