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

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

Extension: ExtensionSubstanceNucleicAcid_Subunit - Detailed Descriptions

Page standards status: Trial-use

Maturity Level: 0

Definitions for the ext-R5-SubstanceNucleicAcid.subunit extension.

Key Elements Table
Differential Elements Table
Snapshot Elements Table

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

0. Extension
Definition	R5: `SubstanceNucleicAcid.subunit` (new:BackboneElement) Optional Extension Element - found in all resources.
Short	R5: Subunits are listed in order of decreasing length; sequences of the same length will be ordered by molecular weight; subunits that have identical sequences will be repeated multiple times (new)Optional Extensions Element
Comments	Element `SubstanceNucleicAcid.subunit` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..* This element is affected by the following invariants: ele-1
Is Modifier	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
2. Extension.extension
Definition	An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	ExtensionAdditional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..*
Type	Extension
Is Modifier	false
Summary	false
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
Slicing	This element introduces a set of slices on `Extension.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
4. Extension.extension:subunit
Slice Name	subunit
Definition	R5: `SubstanceNucleicAcid.subunit.subunit` (new:integer)
Short	R5: Index of linear sequences of nucleic acids in order of decreasing length. Sequences of the same length will be ordered by molecular weight. Subunits that have identical sequences will be repeated and have sequential subscripts (new)Additional content defined by implementations
Comments	Element `SubstanceNucleicAcid.subunit.subunit` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.subunit` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.subunit` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.subunit` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.subunit` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.subunit` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
6. Extension.extension:subunit.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	`subunit`
8. Extension.extension:subunit.value[x]
Definition	Index of linear sequences of nucleic acids in order of decreasing length. Sequences of the same length will be ordered by molecular weight. Subunits that have identical sequences will be repeated and have sequential subscripts. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Index of linear sequences of nucleic acids in order of decreasing length. Sequences of the same length will be ordered by molecular weight. Subunits that have identical sequences will be repeated and have sequential subscriptsValue of extension
Control	0..1
Type	integer, date, Meta, Address, Attachment, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, 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:sequence
Slice Name	sequence
Definition	R5: `SubstanceNucleicAcid.subunit.sequence` (new:string)
Short	R5: Actual nucleotide sequence notation from 5' to 3' end using standard single letter codes. In addition to the base sequence, sugar and type of phosphate or non-phosphate linkage should also be captured (new)Additional content defined by implementations
Comments	Element `SubstanceNucleicAcid.subunit.sequence` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sequence` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sequence` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.sequence` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sequence` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sequence` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
12. Extension.extension:sequence.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	`sequence`
14. Extension.extension:sequence.value[x]
Definition	Actual nucleotide sequence notation from 5' to 3' end using standard single letter codes. In addition to the base sequence, sugar and type of phosphate or non-phosphate linkage should also be captured. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Actual nucleotide sequence notation from 5' to 3' end using standard single letter codes. In addition to the base sequence, sugar and type of phosphate or non-phosphate linkage should also be capturedValue 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()))
16. Extension.extension:length
Slice Name	length
Definition	R5: `SubstanceNucleicAcid.subunit.length` (new:integer)
Short	R5: The length of the sequence shall be captured (new)Additional content defined by implementations
Comments	Element `SubstanceNucleicAcid.subunit.length` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.length` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.length` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.length` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.length` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.length` 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:length.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	`length`
20. Extension.extension:length.value[x]
Definition	The length of the sequence shall be captured. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	The length of the sequence shall be capturedValue of extension
Control	0..1
Type	integer, date, Meta, Address, Attachment, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, 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:sequenceAttachment
Slice Name	sequenceAttachment
Definition	R5: `SubstanceNucleicAcid.subunit.sequenceAttachment` (new:Attachment)
Short	R5: (TBC) (new)Additional content defined by implementations
Comments	Element `SubstanceNucleicAcid.subunit.sequenceAttachment` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sequenceAttachment` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sequenceAttachment` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.sequenceAttachment` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sequenceAttachment` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sequenceAttachment` 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:sequenceAttachment.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	`sequenceAttachment`
26. Extension.extension:sequenceAttachment.value[x]
Definition	(TBC). Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	(TBC)Value of extension
Control	0..1
Type	Attachment, date, Meta, Address, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, 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.extension:fivePrime
Slice Name	fivePrime
Definition	R5: `SubstanceNucleicAcid.subunit.fivePrime` (new:CodeableConcept)
Short	R5: The nucleotide present at the 5’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the first position in the sequence. A separate representation would be redundant (new)Additional content defined by implementations
Comments	Element `SubstanceNucleicAcid.subunit.fivePrime` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.fivePrime` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.fivePrime` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.fivePrime` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.fivePrime` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.fivePrime` 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:fivePrime.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	`fivePrime`
32. Extension.extension:fivePrime.value[x]
Definition	The nucleotide present at the 5’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the first position in the sequence. A separate representation would be redundant. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	The nucleotide present at the 5’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the first position in the sequence. A separate representation would be redundantValue of extension
Control	0..1
Type	CodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ParameterDefinition, dateTime, code, 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
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:threePrime
Slice Name	threePrime
Definition	R5: `SubstanceNucleicAcid.subunit.threePrime` (new:CodeableConcept)
Short	R5: The nucleotide present at the 3’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the last position in the sequence. A separate representation would be redundant (new)Additional content defined by implementations
Comments	Element `SubstanceNucleicAcid.subunit.threePrime` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.threePrime` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.threePrime` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.threePrime` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.threePrime` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.threePrime` 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:threePrime.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	`threePrime`
38. Extension.extension:threePrime.value[x]
Definition	The nucleotide present at the 3’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the last position in the sequence. A separate representation would be redundant. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	The nucleotide present at the 3’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the last position in the sequence. A separate representation would be redundantValue of extension
Control	0..1
Type	CodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ParameterDefinition, dateTime, code, 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
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:linkage
Slice Name	linkage
Definition	R5: `SubstanceNucleicAcid.subunit.linkage` (new:BackboneElement)
Short	R5: The linkages between sugar residues will also be captured (new)Additional content defined by implementations
Comments	Element `SubstanceNucleicAcid.subunit.linkage` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage` 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 `SubstanceNucleicAcid.subunit.linkage` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage` 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:linkage.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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
44. Extension.extension:linkage.extension:connectivity
Slice Name	connectivity
Definition	R5: `SubstanceNucleicAcid.subunit.linkage.connectivity` (new:string)
Short	R5: The entity that links the sugar residues together should also be captured for nearly all naturally occurring nucleic acid the linkage is a phosphate group. For many synthetic oligonucleotides phosphorothioate linkages are often seen. Linkage connectivity is assumed to be 3’-5’. If the linkage is either 3’-3’ or 5’-5’ this should be specified (new)Additional content defined by implementations
Comments	Element `SubstanceNucleicAcid.subunit.linkage.connectivity` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.connectivity` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.connectivity` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.linkage.connectivity` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.connectivity` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.connectivity` 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())
46. Extension.extension:linkage.extension:connectivity.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	`connectivity`
48. Extension.extension:linkage.extension:connectivity.value[x]
Definition	The entity that links the sugar residues together should also be captured for nearly all naturally occurring nucleic acid the linkage is a phosphate group. For many synthetic oligonucleotides phosphorothioate linkages are often seen. Linkage connectivity is assumed to be 3’-5’. If the linkage is either 3’-3’ or 5’-5’ this should be specified. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	The entity that links the sugar residues together should also be captured for nearly all naturally occurring nucleic acid the linkage is a phosphate group. For many synthetic oligonucleotides phosphorothioate linkages are often seen. Linkage connectivity is assumed to be 3’-5’. If the linkage is either 3’-3’ or 5’-5’ this should be specifiedValue 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()))
50. Extension.extension:linkage.extension:identifier
Slice Name	identifier
Definition	R5: `SubstanceNucleicAcid.subunit.linkage.identifier` (new:Identifier)
Short	R5: Each linkage will be registered as a fragment and have an ID (new)Additional content defined by implementations
Comments	Element `SubstanceNucleicAcid.subunit.linkage.identifier` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.identifier` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.identifier` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.linkage.identifier` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.identifier` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.identifier` 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())
52. Extension.extension:linkage.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`
54. Extension.extension:linkage.extension:identifier.value[x]
Definition	Each linkage will be registered as a fragment and have an ID. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Each linkage will be registered as a fragment and have an IDValue of extension
Control	0..1
Type	Identifier, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, 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, 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()))
56. Extension.extension:linkage.extension:name
Slice Name	name
Definition	R5: `SubstanceNucleicAcid.subunit.linkage.name` (new:string)
Short	R5: Each linkage will be registered as a fragment and have at least one name. A single name shall be assigned to each linkage (new)Additional content defined by implementations
Comments	Element `SubstanceNucleicAcid.subunit.linkage.name` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.name` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.name` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.linkage.name` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.name` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.name` 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())
58. Extension.extension:linkage.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`
60. Extension.extension:linkage.extension:name.value[x]
Definition	Each linkage will be registered as a fragment and have at least one name. A single name shall be assigned to each linkage. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Each linkage will be registered as a fragment and have at least one name. A single name shall be assigned to each linkageValue 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()))
62. Extension.extension:linkage.extension:residueSite
Slice Name	residueSite
Definition	R5: `SubstanceNucleicAcid.subunit.linkage.residueSite` (new:string)
Short	R5: Residues shall be captured as described in 5.3.6.8.3 (new)Additional content defined by implementations
Comments	Element `SubstanceNucleicAcid.subunit.linkage.residueSite` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.residueSite` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.residueSite` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.linkage.residueSite` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.residueSite` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.residueSite` 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())
64. Extension.extension:linkage.extension:residueSite.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	`residueSite`
66. Extension.extension:linkage.extension:residueSite.value[x]
Definition	Residues shall be captured as described in 5.3.6.8.3. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Residues shall be captured as described in 5.3.6.8.3Value 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()))
68. Extension.extension:linkage.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	`linkage`
70. Extension.extension:linkage.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()))
72. Extension.extension:sugar
Slice Name	sugar
Definition	R5: `SubstanceNucleicAcid.subunit.sugar` (new:BackboneElement)
Short	R5: 5.3.6.8.1 Sugar ID (Mandatory) (new)Additional content defined by implementations
Comments	Element `SubstanceNucleicAcid.subunit.sugar` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar` 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 `SubstanceNucleicAcid.subunit.sugar` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar` 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())
74. Extension.extension:sugar.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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
76. Extension.extension:sugar.extension:identifier
Slice Name	identifier
Definition	R5: `SubstanceNucleicAcid.subunit.sugar.identifier` (new:Identifier)
Short	R5: The Substance ID of the sugar or sugar-like component that make up the nucleotide (new)Additional content defined by implementations
Comments	Element `SubstanceNucleicAcid.subunit.sugar.identifier` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.identifier` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.identifier` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.sugar.identifier` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.identifier` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.identifier` 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())
78. Extension.extension:sugar.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`
80. Extension.extension:sugar.extension:identifier.value[x]
Definition	The Substance ID of the sugar or sugar-like component that make up the nucleotide. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	The Substance ID of the sugar or sugar-like component that make up the nucleotideValue of extension
Control	0..1
Type	Identifier, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, 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, 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()))
82. Extension.extension:sugar.extension:name
Slice Name	name
Definition	R5: `SubstanceNucleicAcid.subunit.sugar.name` (new:string)
Short	R5: The name of the sugar or sugar-like component that make up the nucleotide (new)Additional content defined by implementations
Comments	Element `SubstanceNucleicAcid.subunit.sugar.name` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.name` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.name` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.sugar.name` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.name` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.name` 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())
84. Extension.extension:sugar.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`
86. Extension.extension:sugar.extension:name.value[x]
Definition	The name of the sugar or sugar-like component that make up the nucleotide. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	The name of the sugar or sugar-like component that make up the nucleotideValue 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()))
88. Extension.extension:sugar.extension:residueSite
Slice Name	residueSite
Definition	R5: `SubstanceNucleicAcid.subunit.sugar.residueSite` (new:string)
Short	R5: The residues that contain a given sugar will be captured. The order of given residues will be captured in the 5‘-3‘direction consistent with the base sequences listed above (new)Additional content defined by implementations
Comments	Element `SubstanceNucleicAcid.subunit.sugar.residueSite` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.residueSite` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.residueSite` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1*
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.sugar.residueSite` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.residueSite` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.residueSite` 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())
90. Extension.extension:sugar.extension:residueSite.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	`residueSite`
92. Extension.extension:sugar.extension:residueSite.value[x]
Definition	The residues that contain a given sugar will be captured. The order of given residues will be captured in the 5‘-3‘direction consistent with the base sequences listed above. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	The residues that contain a given sugar will be captured. The order of given residues will be captured in the 5‘-3‘direction consistent with the base sequences listed aboveValue 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()))
94. Extension.extension:sugar.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	`sugar`
96. Extension.extension:sugar.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()))
98. 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-SubstanceNucleicAcid.subunit`
100. Extension.value[x]
Definition	Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short	Value of extension
Control	0..01
Type	Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

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

0. Extension
Definition	R5: `SubstanceNucleicAcid.subunit` (new:BackboneElement)
Short	R5: Subunits are listed in order of decreasing length; sequences of the same length will be ordered by molecular weight; subunits that have identical sequences will be repeated multiple times (new)
Comments	Element `SubstanceNucleicAcid.subunit` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..*
Is Modifier	false
2. Extension.extension
Control	0..*
Slicing	This element introduces a set of slices on `Extension.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
4. Extension.extension:subunit
Slice Name	subunit
Definition	R5: `SubstanceNucleicAcid.subunit.subunit` (new:integer)
Short	R5: Index of linear sequences of nucleic acids in order of decreasing length. Sequences of the same length will be ordered by molecular weight. Subunits that have identical sequences will be repeated and have sequential subscripts (new)
Comments	Element `SubstanceNucleicAcid.subunit.subunit` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.subunit` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.subunit` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Requirements	Element `SubstanceNucleicAcid.subunit.subunit` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.subunit` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.subunit` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
6. Extension.extension:subunit.url
Control	1..1
Fixed Value	`subunit`
8. Extension.extension:subunit.value[x]
Definition	Index of linear sequences of nucleic acids in order of decreasing length. Sequences of the same length will be ordered by molecular weight. Subunits that have identical sequences will be repeated and have sequential subscripts.
Short	Index of linear sequences of nucleic acids in order of decreasing length. Sequences of the same length will be ordered by molecular weight. Subunits that have identical sequences will be repeated and have sequential subscripts
Control	0..1
Type	integer
[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:sequence
Slice Name	sequence
Definition	R5: `SubstanceNucleicAcid.subunit.sequence` (new:string)
Short	R5: Actual nucleotide sequence notation from 5' to 3' end using standard single letter codes. In addition to the base sequence, sugar and type of phosphate or non-phosphate linkage should also be captured (new)
Comments	Element `SubstanceNucleicAcid.subunit.sequence` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sequence` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sequence` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Requirements	Element `SubstanceNucleicAcid.subunit.sequence` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sequence` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sequence` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
12. Extension.extension:sequence.url
Control	1..1
Fixed Value	`sequence`
14. Extension.extension:sequence.value[x]
Definition	Actual nucleotide sequence notation from 5' to 3' end using standard single letter codes. In addition to the base sequence, sugar and type of phosphate or non-phosphate linkage should also be captured.
Short	Actual nucleotide sequence notation from 5' to 3' end using standard single letter codes. In addition to the base sequence, sugar and type of phosphate or non-phosphate linkage should also be captured
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
16. Extension.extension:length
Slice Name	length
Definition	R5: `SubstanceNucleicAcid.subunit.length` (new:integer)
Short	R5: The length of the sequence shall be captured (new)
Comments	Element `SubstanceNucleicAcid.subunit.length` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.length` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.length` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Requirements	Element `SubstanceNucleicAcid.subunit.length` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.length` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.length` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
18. Extension.extension:length.url
Control	1..1
Fixed Value	`length`
20. Extension.extension:length.value[x]
Definition	The length of the sequence shall be captured.
Short	The length of the sequence shall be captured
Control	0..1
Type	integer
[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:sequenceAttachment
Slice Name	sequenceAttachment
Definition	R5: `SubstanceNucleicAcid.subunit.sequenceAttachment` (new:Attachment)
Short	R5: (TBC) (new)
Comments	Element `SubstanceNucleicAcid.subunit.sequenceAttachment` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sequenceAttachment` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sequenceAttachment` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Requirements	Element `SubstanceNucleicAcid.subunit.sequenceAttachment` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sequenceAttachment` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sequenceAttachment` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
24. Extension.extension:sequenceAttachment.url
Control	1..1
Fixed Value	`sequenceAttachment`
26. Extension.extension:sequenceAttachment.value[x]
Definition	(TBC).
Short	(TBC)
Control	0..1
Type	Attachment
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
28. Extension.extension:fivePrime
Slice Name	fivePrime
Definition	R5: `SubstanceNucleicAcid.subunit.fivePrime` (new:CodeableConcept)
Short	R5: The nucleotide present at the 5’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the first position in the sequence. A separate representation would be redundant (new)
Comments	Element `SubstanceNucleicAcid.subunit.fivePrime` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.fivePrime` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.fivePrime` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Requirements	Element `SubstanceNucleicAcid.subunit.fivePrime` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.fivePrime` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.fivePrime` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
30. Extension.extension:fivePrime.url
Control	1..1
Fixed Value	`fivePrime`
32. Extension.extension:fivePrime.value[x]
Definition	The nucleotide present at the 5’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the first position in the sequence. A separate representation would be redundant.
Short	The nucleotide present at the 5’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the first position in the sequence. A separate representation would be redundant
Control	0..1
Type	CodeableConcept
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
34. Extension.extension:threePrime
Slice Name	threePrime
Definition	R5: `SubstanceNucleicAcid.subunit.threePrime` (new:CodeableConcept)
Short	R5: The nucleotide present at the 3’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the last position in the sequence. A separate representation would be redundant (new)
Comments	Element `SubstanceNucleicAcid.subunit.threePrime` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.threePrime` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.threePrime` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Requirements	Element `SubstanceNucleicAcid.subunit.threePrime` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.threePrime` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.threePrime` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
36. Extension.extension:threePrime.url
Control	1..1
Fixed Value	`threePrime`
38. Extension.extension:threePrime.value[x]
Definition	The nucleotide present at the 3’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the last position in the sequence. A separate representation would be redundant.
Short	The nucleotide present at the 3’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the last position in the sequence. A separate representation would be redundant
Control	0..1
Type	CodeableConcept
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
40. Extension.extension:linkage
Slice Name	linkage
Definition	R5: `SubstanceNucleicAcid.subunit.linkage` (new:BackboneElement)
Short	R5: The linkages between sugar residues will also be captured (new)
Comments	Element `SubstanceNucleicAcid.subunit.linkage` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..*
Requirements	Element `SubstanceNucleicAcid.subunit.linkage` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
42. Extension.extension:linkage.extension
Control	0..*
Slicing	This element introduces a set of slices on `Extension.extension.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
44. Extension.extension:linkage.extension:connectivity
Slice Name	connectivity
Definition	R5: `SubstanceNucleicAcid.subunit.linkage.connectivity` (new:string)
Short	R5: The entity that links the sugar residues together should also be captured for nearly all naturally occurring nucleic acid the linkage is a phosphate group. For many synthetic oligonucleotides phosphorothioate linkages are often seen. Linkage connectivity is assumed to be 3’-5’. If the linkage is either 3’-3’ or 5’-5’ this should be specified (new)
Comments	Element `SubstanceNucleicAcid.subunit.linkage.connectivity` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.connectivity` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.connectivity` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Requirements	Element `SubstanceNucleicAcid.subunit.linkage.connectivity` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.connectivity` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.connectivity` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
46. Extension.extension:linkage.extension:connectivity.url
Control	1..1
Fixed Value	`connectivity`
48. Extension.extension:linkage.extension:connectivity.value[x]
Definition	The entity that links the sugar residues together should also be captured for nearly all naturally occurring nucleic acid the linkage is a phosphate group. For many synthetic oligonucleotides phosphorothioate linkages are often seen. Linkage connectivity is assumed to be 3’-5’. If the linkage is either 3’-3’ or 5’-5’ this should be specified.
Short	The entity that links the sugar residues together should also be captured for nearly all naturally occurring nucleic acid the linkage is a phosphate group. For many synthetic oligonucleotides phosphorothioate linkages are often seen. Linkage connectivity is assumed to be 3’-5’. If the linkage is either 3’-3’ or 5’-5’ this should be specified
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
50. Extension.extension:linkage.extension:identifier
Slice Name	identifier
Definition	R5: `SubstanceNucleicAcid.subunit.linkage.identifier` (new:Identifier)
Short	R5: Each linkage will be registered as a fragment and have an ID (new)
Comments	Element `SubstanceNucleicAcid.subunit.linkage.identifier` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.identifier` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.identifier` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Requirements	Element `SubstanceNucleicAcid.subunit.linkage.identifier` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.identifier` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.identifier` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
52. Extension.extension:linkage.extension:identifier.url
Control	1..1
Fixed Value	`identifier`
54. Extension.extension:linkage.extension:identifier.value[x]
Definition	Each linkage will be registered as a fragment and have an ID.
Short	Each linkage will be registered as a fragment and have an ID
Control	0..1
Type	Identifier
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
56. Extension.extension:linkage.extension:name
Slice Name	name
Definition	R5: `SubstanceNucleicAcid.subunit.linkage.name` (new:string)
Short	R5: Each linkage will be registered as a fragment and have at least one name. A single name shall be assigned to each linkage (new)
Comments	Element `SubstanceNucleicAcid.subunit.linkage.name` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.name` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.name` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Requirements	Element `SubstanceNucleicAcid.subunit.linkage.name` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.name` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.name` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
58. Extension.extension:linkage.extension:name.url
Control	1..1
Fixed Value	`name`
60. Extension.extension:linkage.extension:name.value[x]
Definition	Each linkage will be registered as a fragment and have at least one name. A single name shall be assigned to each linkage.
Short	Each linkage will be registered as a fragment and have at least one name. A single name shall be assigned to each linkage
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
62. Extension.extension:linkage.extension:residueSite
Slice Name	residueSite
Definition	R5: `SubstanceNucleicAcid.subunit.linkage.residueSite` (new:string)
Short	R5: Residues shall be captured as described in 5.3.6.8.3 (new)
Comments	Element `SubstanceNucleicAcid.subunit.linkage.residueSite` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.residueSite` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.residueSite` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Requirements	Element `SubstanceNucleicAcid.subunit.linkage.residueSite` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.residueSite` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.residueSite` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
64. Extension.extension:linkage.extension:residueSite.url
Control	1..1
Fixed Value	`residueSite`
66. Extension.extension:linkage.extension:residueSite.value[x]
Definition	Residues shall be captured as described in 5.3.6.8.3.
Short	Residues shall be captured as described in 5.3.6.8.3
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
68. Extension.extension:linkage.url
Control	1..1
Fixed Value	`linkage`
70. Extension.extension:linkage.value[x]
Control	0..0
72. Extension.extension:sugar
Slice Name	sugar
Definition	R5: `SubstanceNucleicAcid.subunit.sugar` (new:BackboneElement)
Short	R5: 5.3.6.8.1 Sugar ID (Mandatory) (new)
Comments	Element `SubstanceNucleicAcid.subunit.sugar` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..*
Requirements	Element `SubstanceNucleicAcid.subunit.sugar` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
74. Extension.extension:sugar.extension
Control	0..*
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
76. Extension.extension:sugar.extension:identifier
Slice Name	identifier
Definition	R5: `SubstanceNucleicAcid.subunit.sugar.identifier` (new:Identifier)
Short	R5: The Substance ID of the sugar or sugar-like component that make up the nucleotide (new)
Comments	Element `SubstanceNucleicAcid.subunit.sugar.identifier` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.identifier` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.identifier` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Requirements	Element `SubstanceNucleicAcid.subunit.sugar.identifier` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.identifier` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.identifier` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
78. Extension.extension:sugar.extension:identifier.url
Control	1..1
Fixed Value	`identifier`
80. Extension.extension:sugar.extension:identifier.value[x]
Definition	The Substance ID of the sugar or sugar-like component that make up the nucleotide.
Short	The Substance ID of the sugar or sugar-like component that make up the nucleotide
Control	0..1
Type	Identifier
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
82. Extension.extension:sugar.extension:name
Slice Name	name
Definition	R5: `SubstanceNucleicAcid.subunit.sugar.name` (new:string)
Short	R5: The name of the sugar or sugar-like component that make up the nucleotide (new)
Comments	Element `SubstanceNucleicAcid.subunit.sugar.name` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.name` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.name` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Requirements	Element `SubstanceNucleicAcid.subunit.sugar.name` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.name` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.name` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
84. Extension.extension:sugar.extension:name.url
Control	1..1
Fixed Value	`name`
86. Extension.extension:sugar.extension:name.value[x]
Definition	The name of the sugar or sugar-like component that make up the nucleotide.
Short	The name of the sugar or sugar-like component that make up the nucleotide
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
88. Extension.extension:sugar.extension:residueSite
Slice Name	residueSite
Definition	R5: `SubstanceNucleicAcid.subunit.sugar.residueSite` (new:string)
Short	R5: The residues that contain a given sugar will be captured. The order of given residues will be captured in the 5‘-3‘direction consistent with the base sequences listed above (new)
Comments	Element `SubstanceNucleicAcid.subunit.sugar.residueSite` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.residueSite` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.residueSite` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Requirements	Element `SubstanceNucleicAcid.subunit.sugar.residueSite` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.residueSite` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.residueSite` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
90. Extension.extension:sugar.extension:residueSite.url
Control	1..1
Fixed Value	`residueSite`
92. Extension.extension:sugar.extension:residueSite.value[x]
Definition	The residues that contain a given sugar will be captured. The order of given residues will be captured in the 5‘-3‘direction consistent with the base sequences listed above.
Short	The residues that contain a given sugar will be captured. The order of given residues will be captured in the 5‘-3‘direction consistent with the base sequences listed above
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
94. Extension.extension:sugar.url
Control	1..1
Fixed Value	`sugar`
96. Extension.extension:sugar.value[x]
Control	0..0
98. Extension.url
Control	1..1
Fixed Value	`http://hl7.org/fhir/5.0/StructureDefinition/extension-SubstanceNucleicAcid.subunit`
100. Extension.value[x]
Control	0..0

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

0. Extension
Definition	R5: `SubstanceNucleicAcid.subunit` (new:BackboneElement)
Short	R5: Subunits are listed in order of decreasing length; sequences of the same length will be ordered by molecular weight; subunits that have identical sequences will be repeated multiple times (new)
Comments	Element `SubstanceNucleicAcid.subunit` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..* This element is affected by the following invariants: ele-1
Is Modifier	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
2. Extension.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	Unique id for inter-element referencing
Control	0..1
Type	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
4. Extension.extension
Definition	An Extension
Short	Extension
Control	0..*
Type	Extension
Is Modifier	false
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing	This element introduces a set of slices on `Extension.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
6. Extension.extension:subunit
Slice Name	subunit
Definition	R5: `SubstanceNucleicAcid.subunit.subunit` (new:integer)
Short	R5: Index of linear sequences of nucleic acids in order of decreasing length. Sequences of the same length will be ordered by molecular weight. Subunits that have identical sequences will be repeated and have sequential subscripts (new)
Comments	Element `SubstanceNucleicAcid.subunit.subunit` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.subunit` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.subunit` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.subunit` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.subunit` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.subunit` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
8. Extension.extension:subunit.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:subunit.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:subunit.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	`subunit`
14. Extension.extension:subunit.value[x]
Definition	Index of linear sequences of nucleic acids in order of decreasing length. Sequences of the same length will be ordered by molecular weight. Subunits that have identical sequences will be repeated and have sequential subscripts.
Short	Index of linear sequences of nucleic acids in order of decreasing length. Sequences of the same length will be ordered by molecular weight. Subunits that have identical sequences will be repeated and have sequential subscripts
Control	0..1
Type	integer
[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:sequence
Slice Name	sequence
Definition	R5: `SubstanceNucleicAcid.subunit.sequence` (new:string)
Short	R5: Actual nucleotide sequence notation from 5' to 3' end using standard single letter codes. In addition to the base sequence, sugar and type of phosphate or non-phosphate linkage should also be captured (new)
Comments	Element `SubstanceNucleicAcid.subunit.sequence` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sequence` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sequence` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.sequence` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sequence` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sequence` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
18. Extension.extension:sequence.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:sequence.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:sequence.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	`sequence`
24. Extension.extension:sequence.value[x]
Definition	Actual nucleotide sequence notation from 5' to 3' end using standard single letter codes. In addition to the base sequence, sugar and type of phosphate or non-phosphate linkage should also be captured.
Short	Actual nucleotide sequence notation from 5' to 3' end using standard single letter codes. In addition to the base sequence, sugar and type of phosphate or non-phosphate linkage should also be captured
Control	0..1
Type	string
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
26. Extension.extension:length
Slice Name	length
Definition	R5: `SubstanceNucleicAcid.subunit.length` (new:integer)
Short	R5: The length of the sequence shall be captured (new)
Comments	Element `SubstanceNucleicAcid.subunit.length` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.length` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.length` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.length` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.length` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.length` 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:length.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:length.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:length.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	`length`
34. Extension.extension:length.value[x]
Definition	The length of the sequence shall be captured.
Short	The length of the sequence shall be captured
Control	0..1
Type	integer
[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:sequenceAttachment
Slice Name	sequenceAttachment
Definition	R5: `SubstanceNucleicAcid.subunit.sequenceAttachment` (new:Attachment)
Short	R5: (TBC) (new)
Comments	Element `SubstanceNucleicAcid.subunit.sequenceAttachment` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sequenceAttachment` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sequenceAttachment` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.sequenceAttachment` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sequenceAttachment` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sequenceAttachment` 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:sequenceAttachment.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:sequenceAttachment.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:sequenceAttachment.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	`sequenceAttachment`
44. Extension.extension:sequenceAttachment.value[x]
Definition	(TBC).
Short	(TBC)
Control	0..1
Type	Attachment
[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.extension:fivePrime
Slice Name	fivePrime
Definition	R5: `SubstanceNucleicAcid.subunit.fivePrime` (new:CodeableConcept)
Short	R5: The nucleotide present at the 5’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the first position in the sequence. A separate representation would be redundant (new)
Comments	Element `SubstanceNucleicAcid.subunit.fivePrime` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.fivePrime` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.fivePrime` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.fivePrime` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.fivePrime` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.fivePrime` 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:fivePrime.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:fivePrime.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:fivePrime.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	`fivePrime`
54. Extension.extension:fivePrime.value[x]
Definition	The nucleotide present at the 5’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the first position in the sequence. A separate representation would be redundant.
Short	The nucleotide present at the 5’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the first position in the sequence. A separate representation would be redundant
Control	0..1
Type	CodeableConcept
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
56. Extension.extension:threePrime
Slice Name	threePrime
Definition	R5: `SubstanceNucleicAcid.subunit.threePrime` (new:CodeableConcept)
Short	R5: The nucleotide present at the 3’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the last position in the sequence. A separate representation would be redundant (new)
Comments	Element `SubstanceNucleicAcid.subunit.threePrime` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.threePrime` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.threePrime` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.threePrime` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.threePrime` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.threePrime` 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:threePrime.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:threePrime.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:threePrime.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	`threePrime`
64. Extension.extension:threePrime.value[x]
Definition	The nucleotide present at the 3’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the last position in the sequence. A separate representation would be redundant.
Short	The nucleotide present at the 3’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the last position in the sequence. A separate representation would be redundant
Control	0..1
Type	CodeableConcept
[x] Note	SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier	false
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
66. Extension.extension:linkage
Slice Name	linkage
Definition	R5: `SubstanceNucleicAcid.subunit.linkage` (new:BackboneElement)
Short	R5: The linkages between sugar residues will also be captured (new)
Comments	Element `SubstanceNucleicAcid.subunit.linkage` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage` 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 `SubstanceNucleicAcid.subunit.linkage` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage` 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:linkage.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:linkage.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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
72. Extension.extension:linkage.extension:connectivity
Slice Name	connectivity
Definition	R5: `SubstanceNucleicAcid.subunit.linkage.connectivity` (new:string)
Short	R5: The entity that links the sugar residues together should also be captured for nearly all naturally occurring nucleic acid the linkage is a phosphate group. For many synthetic oligonucleotides phosphorothioate linkages are often seen. Linkage connectivity is assumed to be 3’-5’. If the linkage is either 3’-3’ or 5’-5’ this should be specified (new)
Comments	Element `SubstanceNucleicAcid.subunit.linkage.connectivity` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.connectivity` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.connectivity` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.linkage.connectivity` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.connectivity` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.connectivity` 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()`)
74. Extension.extension:linkage.extension:connectivity.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
76. Extension.extension:linkage.extension:connectivity.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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
78. Extension.extension:linkage.extension:connectivity.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	`connectivity`
80. Extension.extension:linkage.extension:connectivity.value[x]
Definition	The entity that links the sugar residues together should also be captured for nearly all naturally occurring nucleic acid the linkage is a phosphate group. For many synthetic oligonucleotides phosphorothioate linkages are often seen. Linkage connectivity is assumed to be 3’-5’. If the linkage is either 3’-3’ or 5’-5’ this should be specified.
Short	The entity that links the sugar residues together should also be captured for nearly all naturally occurring nucleic acid the linkage is a phosphate group. For many synthetic oligonucleotides phosphorothioate linkages are often seen. Linkage connectivity is assumed to be 3’-5’. If the linkage is either 3’-3’ or 5’-5’ this should be specified
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())`)
82. Extension.extension:linkage.extension:identifier
Slice Name	identifier
Definition	R5: `SubstanceNucleicAcid.subunit.linkage.identifier` (new:Identifier)
Short	R5: Each linkage will be registered as a fragment and have an ID (new)
Comments	Element `SubstanceNucleicAcid.subunit.linkage.identifier` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.identifier` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.identifier` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.linkage.identifier` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.identifier` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.identifier` 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()`)
84. Extension.extension:linkage.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	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
86. Extension.extension:linkage.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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
88. Extension.extension:linkage.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`
90. Extension.extension:linkage.extension:identifier.value[x]
Definition	Each linkage will be registered as a fragment and have an ID.
Short	Each linkage will be registered as a fragment and have an ID
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())`)
92. Extension.extension:linkage.extension:name
Slice Name	name
Definition	R5: `SubstanceNucleicAcid.subunit.linkage.name` (new:string)
Short	R5: Each linkage will be registered as a fragment and have at least one name. A single name shall be assigned to each linkage (new)
Comments	Element `SubstanceNucleicAcid.subunit.linkage.name` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.name` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.name` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.linkage.name` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.name` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.name` 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()`)
94. Extension.extension:linkage.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
96. Extension.extension:linkage.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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
98. Extension.extension:linkage.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`
100. Extension.extension:linkage.extension:name.value[x]
Definition	Each linkage will be registered as a fragment and have at least one name. A single name shall be assigned to each linkage.
Short	Each linkage will be registered as a fragment and have at least one name. A single name shall be assigned to each linkage
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())`)
102. Extension.extension:linkage.extension:residueSite
Slice Name	residueSite
Definition	R5: `SubstanceNucleicAcid.subunit.linkage.residueSite` (new:string)
Short	R5: Residues shall be captured as described in 5.3.6.8.3 (new)
Comments	Element `SubstanceNucleicAcid.subunit.linkage.residueSite` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.residueSite` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.residueSite` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.linkage.residueSite` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.linkage` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.linkage.residueSite` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.linkage.residueSite` 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()`)
104. Extension.extension:linkage.extension:residueSite.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
106. Extension.extension:linkage.extension:residueSite.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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
108. Extension.extension:linkage.extension:residueSite.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	`residueSite`
110. Extension.extension:linkage.extension:residueSite.value[x]
Definition	Residues shall be captured as described in 5.3.6.8.3.
Short	Residues shall be captured as described in 5.3.6.8.3
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())`)
112. Extension.extension:linkage.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	`linkage`
114. Extension.extension:linkage.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())`)
116. Extension.extension:sugar
Slice Name	sugar
Definition	R5: `SubstanceNucleicAcid.subunit.sugar` (new:BackboneElement)
Short	R5: 5.3.6.8.1 Sugar ID (Mandatory) (new)
Comments	Element `SubstanceNucleicAcid.subunit.sugar` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar` 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 `SubstanceNucleicAcid.subunit.sugar` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar` 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()`)
118. Extension.extension:sugar.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
120. Extension.extension:sugar.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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
122. Extension.extension:sugar.extension:identifier
Slice Name	identifier
Definition	R5: `SubstanceNucleicAcid.subunit.sugar.identifier` (new:Identifier)
Short	R5: The Substance ID of the sugar or sugar-like component that make up the nucleotide (new)
Comments	Element `SubstanceNucleicAcid.subunit.sugar.identifier` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.identifier` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.identifier` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.sugar.identifier` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.identifier` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.identifier` 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()`)
124. Extension.extension:sugar.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	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
126. Extension.extension:sugar.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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
128. Extension.extension:sugar.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`
130. Extension.extension:sugar.extension:identifier.value[x]
Definition	The Substance ID of the sugar or sugar-like component that make up the nucleotide.
Short	The Substance ID of the sugar or sugar-like component that make up the nucleotide
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())`)
132. Extension.extension:sugar.extension:name
Slice Name	name
Definition	R5: `SubstanceNucleicAcid.subunit.sugar.name` (new:string)
Short	R5: The name of the sugar or sugar-like component that make up the nucleotide (new)
Comments	Element `SubstanceNucleicAcid.subunit.sugar.name` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.name` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.name` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.sugar.name` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.name` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.name` 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()`)
134. Extension.extension:sugar.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
136. Extension.extension:sugar.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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
138. Extension.extension:sugar.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`
140. Extension.extension:sugar.extension:name.value[x]
Definition	The name of the sugar or sugar-like component that make up the nucleotide.
Short	The name of the sugar or sugar-like component that make up the nucleotide
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())`)
142. Extension.extension:sugar.extension:residueSite
Slice Name	residueSite
Definition	R5: `SubstanceNucleicAcid.subunit.sugar.residueSite` (new:string)
Short	R5: The residues that contain a given sugar will be captured. The order of given residues will be captured in the 5‘-3‘direction consistent with the base sequences listed above (new)
Comments	Element `SubstanceNucleicAcid.subunit.sugar.residueSite` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.residueSite` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.residueSite` has no mapping targets in FHIR R4. Typically, this is because the element has been added (is a new element).
Control	0..1
Type	Extension
Is Modifier	false
Summary	false
Requirements	Element `SubstanceNucleicAcid.subunit.sugar.residueSite` is part of an existing definition because parent element `SubstanceNucleicAcid.subunit.sugar` requires a cross-version extension. Element `SubstanceNucleicAcid.subunit.sugar.residueSite` is not mapped to FHIR R4, since FHIR R5 `SubstanceNucleicAcid` is not mapped. Element `SubstanceNucleicAcid.subunit.sugar.residueSite` 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()`)
144. Extension.extension:sugar.extension:residueSite.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
146. Extension.extension:sugar.extension:residueSite.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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
148. Extension.extension:sugar.extension:residueSite.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	`residueSite`
150. Extension.extension:sugar.extension:residueSite.value[x]
Definition	The residues that contain a given sugar will be captured. The order of given residues will be captured in the 5‘-3‘direction consistent with the base sequences listed above.
Short	The residues that contain a given sugar will be captured. The order of given residues will be captured in the 5‘-3‘direction consistent with the base sequences listed above
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())`)
152. Extension.extension:sugar.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	`sugar`
154. Extension.extension:sugar.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())`)
156. 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-SubstanceNucleicAcid.subunit`
158. 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())`)