ExtensionImplementationGuide_Page - Definitions - Extensions for Using Data Elements from FHIR DSTU2 in FHIR R4 v0.1.0

Extensions for Using Data Elements from FHIR DSTU2 in FHIR R4 - Downloaded Version null See the Directory of published versions

Extension: ExtensionImplementationGuide_Page - Detailed Descriptions

Page standards status: Trial-use

Maturity Level: 0

Definitions for the ext-R2-ImplementationGuide.page extension.

Key Elements Table
Differential Elements Table
Snapshot Elements Table

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

0. Extension
Definition	DSTU2: `ImplementationGuide.page` Optional Extension Element - found in all resources.
Short	DSTU2: Page/Section in the GuideOptional Extensions Element
Comments	Element `ImplementationGuide.page` is mapped to FHIR R4 element `ImplementationGuide.manifest.page` as `SourceIsNarrowerThanTarget`. Pages automatically become sections if they have sub-pages. By convention, the home page is called index.html.
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 (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
2. Extension.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	30..*
Type	Extension
Is Modifier	false
Summary	false
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
4. Extension.extension:source
Slice Name	source
Definition	DSTU2: `ImplementationGuide.page.source`
Short	DSTU2: Where to find that pageAdditional content defined by implementations
Comments	Element `ImplementationGuide.page.source` is mapped to FHIR R4 element `ImplementationGuide.manifest.page.name` as `SourceIsNarrowerThanTarget`. The publishing tool will autogenerate source for list (source = n/a), and inject included implementations for include (source = uri of guide to include).
Control	10..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `ImplementationGuide.page.source` is mapped to FHIR R4 element `ImplementationGuide.manifest.page.name` as `SourceIsNarrowerThanTarget`.
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: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`
8. Extension.extension:source.value[x]
Definition	The source address for the page. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Where to find that pageValue of extension
Comments	The publishing tool will autogenerate source for list (source = n/a), and inject included implementations for include (source = uri of guide to include).
Control	10..1
Type	uri, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
10. Extension.extension:name
Slice Name	name
Definition	DSTU2: `ImplementationGuide.page.name`
Short	DSTU2: Short name shown for navigational assistanceAdditional content defined by implementations
Comments	Element `ImplementationGuide.page.name` is mapped to FHIR R4 element `ImplementationGuide.manifest.page.title` as `Equivalent`.
Control	10..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `ImplementationGuide.page.name` is mapped to FHIR R4 element `ImplementationGuide.manifest.page.title` as `Equivalent`.
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:name.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	`name`
14. Extension.extension:name.value[x]
Definition	A short name used to represent this page in navigational structures such as table of contents, bread crumbs, etc. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Short name shown for navigational assistanceValue of extension
Control	10..1
Type	string, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
16. Extension.extension:kind
Slice Name	kind
Definition	DSTU2: `ImplementationGuide.page.kind` (new:code)
Short	DSTU2: page \| example \| list \| include \| directory \| dictionary \| toc \| resource (new)Additional content defined by implementations
Comments	Element `ImplementationGuide.page.kind` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.kind` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	10..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `ImplementationGuide.page.kind` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.kind` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
18. Extension.extension:kind.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	`kind`
20. Extension.extension:kind.value[x]
Definition	The kind of page that this is. Some pages are autogenerated (list, example), and other kinds are of interest so that tools can navigate the user to the page of interest. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	page \| example \| list \| include \| directory \| dictionary \| toc \| resourceValue of extension
Control	10..1
Binding	The codes SHALL be taken from For codes, see R2GuidePageKindForR4 (0.1.0) (required to `http://hl7.org/fhir/uv/xver/ValueSet/R2-guide-page-kind-for-R4\|0.1.0`) The kind of an included page.
Type	code, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
22. Extension.extension:type
Slice Name	type
Definition	DSTU2: `ImplementationGuide.page.type` (new:code)
Short	DSTU2: Kind of resource to include in the list (new)Additional content defined by implementations
Comments	Element `ImplementationGuide.page.type` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.type` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `ImplementationGuide.page.type` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.type` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
24. Extension.extension:type.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	`type`
26. Extension.extension:type.value[x]
Definition	For constructed pages, what kind of resources to include in the list. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Kind of resource to include in the listValue of extension
Control	0..1
Binding	The codes SHALL be taken from For codes, see R2ResourceTypesForR4 (0.1.0) (required to `http://hl7.org/fhir/uv/xver/ValueSet/R2-resource-types-for-R4\|0.1.0`) One of the resource types defined as part of FHIR.
Type	code, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
28. Extension.extension:package
Slice Name	package
Definition	DSTU2: `ImplementationGuide.page.package` (new:string)
Short	DSTU2: Name of package to include (new)Additional content defined by implementations
Comments	Element `ImplementationGuide.page.package` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.package` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `ImplementationGuide.page.package` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.package` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
30. Extension.extension:package.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	`package`
32. Extension.extension:package.value[x]
Definition	For constructed pages, a list of packages to include in the page (or else empty for everything). Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Name of package to includeValue of extension
Control	0..1
Type	string, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
34. Extension.extension:format
Slice Name	format
Definition	DSTU2: `ImplementationGuide.page.format` (new:code)
Short	DSTU2: Format of the page (e.g. html, markdown, etc.) (new)Additional content defined by implementations
Comments	Element `ImplementationGuide.page.format` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.format` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element). This is primarily for the publishing tool, that will convert all pages to html format. HTML pages are pre-processed, see xxxx.
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `ImplementationGuide.page.format` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.format` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
36. Extension.extension:format.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	`format`
38. Extension.extension:format.value[x]
Definition	The format of the page. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Format of the page (e.g. html, markdown, etc.)Value of extension
Comments	This is primarily for the publishing tool, that will convert all pages to html format. HTML pages are pre-processed, see xxxx.
Control	0..1
Type	code, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
40. Extension.extension:page
Slice Name	page
Definition	DSTU2: `ImplementationGuide.page.page` (new:ImplementationGuide.page)
Short	DSTU2: Nested Pages / Sections (new)Additional content defined by implementations
Comments	Element `ImplementationGuide.page.page` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.page` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element). The implementation guide breadcrumbs are generated from this structure.
Control	0..*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `ImplementationGuide.page.page` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.page` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
42. Extension.extension:page.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/1.0/StructureDefinition/extension-ImplementationGuide.page`
44. Extension.extension:page.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..01
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
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/1.0/StructureDefinition/extension-ImplementationGuide.page`
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..01
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

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

0. Extension
Definition	DSTU2: `ImplementationGuide.page`
Short	DSTU2: Page/Section in the Guide
Comments	Element `ImplementationGuide.page` is mapped to FHIR R4 element `ImplementationGuide.manifest.page` as `SourceIsNarrowerThanTarget`. Pages automatically become sections if they have sub-pages. By convention, the home page is called index.html.
Control	1..1
Is Modifier	false
2. Extension.extension
Control	3..*
Slicing	This element introduces a set of slices on `Extension.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
4. Extension.extension:source
Slice Name	source
Definition	DSTU2: `ImplementationGuide.page.source`
Short	DSTU2: Where to find that page
Comments	Element `ImplementationGuide.page.source` is mapped to FHIR R4 element `ImplementationGuide.manifest.page.name` as `SourceIsNarrowerThanTarget`. The publishing tool will autogenerate source for list (source = n/a), and inject included implementations for include (source = uri of guide to include).
Control	1..1
Requirements	Element `ImplementationGuide.page.source` is mapped to FHIR R4 element `ImplementationGuide.manifest.page.name` as `SourceIsNarrowerThanTarget`.
6. Extension.extension:source.url
Control	1..1
Fixed Value	`source`
8. Extension.extension:source.value[x]
Definition	The source address for the page.
Short	Where to find that page
Comments	The publishing tool will autogenerate source for list (source = n/a), and inject included implementations for include (source = uri of guide to include).
Control	1..1
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:name
Slice Name	name
Definition	DSTU2: `ImplementationGuide.page.name`
Short	DSTU2: Short name shown for navigational assistance
Comments	Element `ImplementationGuide.page.name` is mapped to FHIR R4 element `ImplementationGuide.manifest.page.title` as `Equivalent`.
Control	1..1
Requirements	Element `ImplementationGuide.page.name` is mapped to FHIR R4 element `ImplementationGuide.manifest.page.title` as `Equivalent`.
12. Extension.extension:name.url
Control	1..1
Fixed Value	`name`
14. Extension.extension:name.value[x]
Definition	A short name used to represent this page in navigational structures such as table of contents, bread crumbs, etc.
Short	Short name shown for navigational assistance
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
16. Extension.extension:kind
Slice Name	kind
Definition	DSTU2: `ImplementationGuide.page.kind` (new:code)
Short	DSTU2: page \| example \| list \| include \| directory \| dictionary \| toc \| resource (new)
Comments	Element `ImplementationGuide.page.kind` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.kind` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	1..1
Requirements	Element `ImplementationGuide.page.kind` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.kind` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
18. Extension.extension:kind.url
Control	1..1
Fixed Value	`kind`
20. Extension.extension:kind.value[x]
Definition	The kind of page that this is. Some pages are autogenerated (list, example), and other kinds are of interest so that tools can navigate the user to the page of interest.
Short	page \| example \| list \| include \| directory \| dictionary \| toc \| resource
Control	1..1
Binding	The codes SHALL be taken from R2GuidePageKindForR4 (0.1.0) (required to `http://hl7.org/fhir/uv/xver/ValueSet/R2-guide-page-kind-for-R4\|0.1.0`) The kind of an included page.
Type	code
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
22. Extension.extension:type
Slice Name	type
Definition	DSTU2: `ImplementationGuide.page.type` (new:code)
Short	DSTU2: Kind of resource to include in the list (new)
Comments	Element `ImplementationGuide.page.type` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.type` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..*
Requirements	Element `ImplementationGuide.page.type` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.type` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
24. Extension.extension:type.url
Control	1..1
Fixed Value	`type`
26. Extension.extension:type.value[x]
Definition	For constructed pages, what kind of resources to include in the list.
Short	Kind of resource to include in the list
Control	0..1
Binding	The codes SHALL be taken from R2ResourceTypesForR4 (0.1.0) (required to `http://hl7.org/fhir/uv/xver/ValueSet/R2-resource-types-for-R4\|0.1.0`) One of the resource types defined as part of FHIR.
Type	code
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
28. Extension.extension:package
Slice Name	package
Definition	DSTU2: `ImplementationGuide.page.package` (new:string)
Short	DSTU2: Name of package to include (new)
Comments	Element `ImplementationGuide.page.package` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.package` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..*
Requirements	Element `ImplementationGuide.page.package` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.package` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
30. Extension.extension:package.url
Control	1..1
Fixed Value	`package`
32. Extension.extension:package.value[x]
Definition	For constructed pages, a list of packages to include in the page (or else empty for everything).
Short	Name of package to include
Control	0..1
Type	string
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
34. Extension.extension:format
Slice Name	format
Definition	DSTU2: `ImplementationGuide.page.format` (new:code)
Short	DSTU2: Format of the page (e.g. html, markdown, etc.) (new)
Comments	Element `ImplementationGuide.page.format` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.format` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element). This is primarily for the publishing tool, that will convert all pages to html format. HTML pages are pre-processed, see xxxx.
Control	0..1
Requirements	Element `ImplementationGuide.page.format` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.format` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
36. Extension.extension:format.url
Control	1..1
Fixed Value	`format`
38. Extension.extension:format.value[x]
Definition	The format of the page.
Short	Format of the page (e.g. html, markdown, etc.)
Comments	This is primarily for the publishing tool, that will convert all pages to html format. HTML pages are pre-processed, see xxxx.
Control	0..1
Type	code
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
40. Extension.extension:page
Slice Name	page
Definition	DSTU2: `ImplementationGuide.page.page` (new:ImplementationGuide.page)
Short	DSTU2: Nested Pages / Sections (new)
Comments	Element `ImplementationGuide.page.page` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.page` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element). The implementation guide breadcrumbs are generated from this structure.
Control	0..*
Requirements	Element `ImplementationGuide.page.page` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.page` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
42. Extension.extension:page.url
Control	1..1
Fixed Value	`http://hl7.org/fhir/1.0/StructureDefinition/extension-ImplementationGuide.page`
44. Extension.extension:page.value[x]
Control	0..0
46. Extension.url
Control	1..1
Fixed Value	`http://hl7.org/fhir/1.0/StructureDefinition/extension-ImplementationGuide.page`
48. Extension.value[x]
Control	0..0

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

0. Extension
Definition	DSTU2: `ImplementationGuide.page`
Short	DSTU2: Page/Section in the Guide
Comments	Element `ImplementationGuide.page` is mapped to FHIR R4 element `ImplementationGuide.manifest.page` as `SourceIsNarrowerThanTarget`. Pages automatically become sections if they have sub-pages. By convention, the home page is called index.html.
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 (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
2. Extension.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
4. Extension.extension
Definition	An Extension
Short	Extension
Control	3..*
Type	Extension
Is Modifier	false
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
6. Extension.extension:source
Slice Name	source
Definition	DSTU2: `ImplementationGuide.page.source`
Short	DSTU2: Where to find that page
Comments	Element `ImplementationGuide.page.source` is mapped to FHIR R4 element `ImplementationGuide.manifest.page.name` as `SourceIsNarrowerThanTarget`. The publishing tool will autogenerate source for list (source = n/a), and inject included implementations for include (source = uri of guide to include).
Control	1..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `ImplementationGuide.page.source` is mapped to FHIR R4 element `ImplementationGuide.manifest.page.name` as `SourceIsNarrowerThanTarget`.
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: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	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
10. 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
12. 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`
14. Extension.extension:source.value[x]
Definition	The source address for the page.
Short	Where to find that page
Comments	The publishing tool will autogenerate source for list (source = n/a), and inject included implementations for include (source = uri of guide to include).
Control	1..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:name
Slice Name	name
Definition	DSTU2: `ImplementationGuide.page.name`
Short	DSTU2: Short name shown for navigational assistance
Comments	Element `ImplementationGuide.page.name` is mapped to FHIR R4 element `ImplementationGuide.manifest.page.title` as `Equivalent`.
Control	1..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `ImplementationGuide.page.name` is mapped to FHIR R4 element `ImplementationGuide.manifest.page.title` as `Equivalent`.
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:name.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
20. Extension.extension:name.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:name.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	`name`
24. Extension.extension:name.value[x]
Definition	A short name used to represent this page in navigational structures such as table of contents, bread crumbs, etc.
Short	Short name shown for navigational assistance
Control	1..1
Type	string
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
26. Extension.extension:kind
Slice Name	kind
Definition	DSTU2: `ImplementationGuide.page.kind` (new:code)
Short	DSTU2: page \| example \| list \| include \| directory \| dictionary \| toc \| resource (new)
Comments	Element `ImplementationGuide.page.kind` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.kind` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	1..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `ImplementationGuide.page.kind` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.kind` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
28. Extension.extension:kind.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
30. Extension.extension:kind.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:kind.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	`kind`
34. Extension.extension:kind.value[x]
Definition	The kind of page that this is. Some pages are autogenerated (list, example), and other kinds are of interest so that tools can navigate the user to the page of interest.
Short	page \| example \| list \| include \| directory \| dictionary \| toc \| resource
Control	1..1
Binding	The codes SHALL be taken from R2GuidePageKindForR4 (0.1.0) (required to `http://hl7.org/fhir/uv/xver/ValueSet/R2-guide-page-kind-for-R4\|0.1.0`) The kind of an included page.
Type	code
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
36. Extension.extension:type
Slice Name	type
Definition	DSTU2: `ImplementationGuide.page.type` (new:code)
Short	DSTU2: Kind of resource to include in the list (new)
Comments	Element `ImplementationGuide.page.type` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.type` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `ImplementationGuide.page.type` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.type` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
38. Extension.extension:type.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
40. Extension.extension:type.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:type.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	`type`
44. Extension.extension:type.value[x]
Definition	For constructed pages, what kind of resources to include in the list.
Short	Kind of resource to include in the list
Control	0..1
Binding	The codes SHALL be taken from R2ResourceTypesForR4 (0.1.0) (required to `http://hl7.org/fhir/uv/xver/ValueSet/R2-resource-types-for-R4\|0.1.0`) One of the resource types defined as part of FHIR.
Type	code
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
46. Extension.extension:package
Slice Name	package
Definition	DSTU2: `ImplementationGuide.page.package` (new:string)
Short	DSTU2: Name of package to include (new)
Comments	Element `ImplementationGuide.page.package` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.package` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `ImplementationGuide.page.package` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.package` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
48. Extension.extension:package.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
50. Extension.extension:package.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:package.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	`package`
54. Extension.extension:package.value[x]
Definition	For constructed pages, a list of packages to include in the page (or else empty for everything).
Short	Name of package to include
Control	0..1
Type	string
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
56. Extension.extension:format
Slice Name	format
Definition	DSTU2: `ImplementationGuide.page.format` (new:code)
Short	DSTU2: Format of the page (e.g. html, markdown, etc.) (new)
Comments	Element `ImplementationGuide.page.format` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.format` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element). This is primarily for the publishing tool, that will convert all pages to html format. HTML pages are pre-processed, see xxxx.
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `ImplementationGuide.page.format` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.format` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
58. Extension.extension:format.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
60. Extension.extension:format.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:format.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	`format`
64. Extension.extension:format.value[x]
Definition	The format of the page.
Short	Format of the page (e.g. html, markdown, etc.)
Comments	This is primarily for the publishing tool, that will convert all pages to html format. HTML pages are pre-processed, see xxxx.
Control	0..1
Type	code
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
66. Extension.extension:page
Slice Name	page
Definition	DSTU2: `ImplementationGuide.page.page` (new:ImplementationGuide.page)
Short	DSTU2: Nested Pages / Sections (new)
Comments	Element `ImplementationGuide.page.page` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.page` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element). The implementation guide breadcrumbs are generated from this structure.
Control	0..*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `ImplementationGuide.page.page` has a context of ImplementationGuide.manifest.page based on following the parent source element upwards and mapping to `ImplementationGuide`. Element `ImplementationGuide.page.page` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
68. Extension.extension:page.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
70. Extension.extension:page.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
72. Extension.extension:page.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/1.0/StructureDefinition/extension-ImplementationGuide.page`
74. Extension.extension:page.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..0
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
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/1.0/StructureDefinition/extension-ImplementationGuide.page`
78. Extension.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..0
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)