FHIR Cross-Version Extensions package for FHIR R5 from FHIR R4B
0.0.1-snapshot-2 - informative International flag

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

Extension: Ext_R4B_MolecularSequence_variant - Detailed Descriptions

Page standards status: Informative Maturity Level: 0

Definitions for the ext-R4B-MolecularSequence.variant extension.

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

0. Extension
Definition

The definition of variant here originates from Sequence ontology (variant_of). This element can represent amino acid or nucleic sequence change(including insertion,deletion,SNP,etc.) It can represent some complex mutation or segment variation with the assist of CIGAR string.

ShortVariant in sequence
Comments

MolecularSequence.variant has no related element in R5:MolecularSequence

Control0..*
2. Extension.extension
Control0..*
SlicingThis element introduces a set of slices on Extension.extension. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
  • value @ url
  • 4. Extension.extension:start
    Slice Namestart
    Definition

    Start position of the variant on the reference sequence. If the coordinate system is either 0-based or 1-based, then start position is inclusive.

    ShortStart position of the variant on the reference sequence
    Comments

    MolecularSequence.variant has no related element in R5:MolecularSequence

    Control0..1
    6. Extension.extension:start.url
    Control1..1
    Fixed Valuestart
    8. Extension.extension:start.value[x]
    Definition

    Start position of the variant on the reference sequence. If the coordinate system is either 0-based or 1-based, then start position is inclusive.

    ShortStart position of the variant on the reference sequence
    Comments

    MolecularSequence.variant has no related element in R5:MolecularSequence

    Typeinteger
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    10. Extension.extension:end
    Slice Nameend
    Definition

    End position of the variant on the reference sequence. If the coordinate system is 0-based then end is exclusive and does not include the last position. If the coordinate system is 1-base, then end is inclusive and includes the last position.

    ShortEnd position of the variant on the reference sequence
    Comments

    MolecularSequence.variant has no related element in R5:MolecularSequence

    Control0..1
    12. Extension.extension:end.url
    Control1..1
    Fixed Valueend
    14. Extension.extension:end.value[x]
    Definition

    End position of the variant on the reference sequence. If the coordinate system is 0-based then end is exclusive and does not include the last position. If the coordinate system is 1-base, then end is inclusive and includes the last position.

    ShortEnd position of the variant on the reference sequence
    Comments

    MolecularSequence.variant has no related element in R5:MolecularSequence

    Typeinteger
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    16. Extension.extension:observedAllele
    Slice NameobservedAllele
    Definition

    An allele is one of a set of coexisting sequence variants of a gene (SO:0001023). Nucleotide(s)/amino acids from start position of sequence to stop position of sequence on the positive (+) strand of the observed sequence. When the sequence type is DNA, it should be the sequence on the positive (+) strand. This will lay in the range between variant.start and variant.end.

    ShortAllele that was observed
    Comments

    MolecularSequence.variant has no related element in R5:MolecularSequence

    Control0..1
    18. Extension.extension:observedAllele.url
    Control1..1
    Fixed ValueobservedAllele
    20. Extension.extension:observedAllele.value[x]
    Definition

    An allele is one of a set of coexisting sequence variants of a gene (SO:0001023). Nucleotide(s)/amino acids from start position of sequence to stop position of sequence on the positive (+) strand of the observed sequence. When the sequence type is DNA, it should be the sequence on the positive (+) strand. This will lay in the range between variant.start and variant.end.

    ShortAllele that was observed
    Comments

    MolecularSequence.variant has no related element in R5:MolecularSequence

    Typestring
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    22. Extension.extension:referenceAllele
    Slice NamereferenceAllele
    Definition

    An allele is one of a set of coexisting sequence variants of a gene (SO:0001023). Nucleotide(s)/amino acids from start position of sequence to stop position of sequence on the positive (+) strand of the reference sequence. When the sequence type is DNA, it should be the sequence on the positive (+) strand. This will lay in the range between variant.start and variant.end.

    ShortAllele in the reference sequence
    Comments

    MolecularSequence.variant has no related element in R5:MolecularSequence

    Control0..1
    24. Extension.extension:referenceAllele.url
    Control1..1
    Fixed ValuereferenceAllele
    26. Extension.extension:referenceAllele.value[x]
    Definition

    An allele is one of a set of coexisting sequence variants of a gene (SO:0001023). Nucleotide(s)/amino acids from start position of sequence to stop position of sequence on the positive (+) strand of the reference sequence. When the sequence type is DNA, it should be the sequence on the positive (+) strand. This will lay in the range between variant.start and variant.end.

    ShortAllele in the reference sequence
    Comments

    MolecularSequence.variant has no related element in R5:MolecularSequence

    Typestring
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    28. Extension.extension:cigar
    Slice Namecigar
    Definition

    Extended CIGAR string for aligning the sequence with reference bases. See detailed documentation here.

    ShortExtended CIGAR string for aligning the sequence with reference bases
    Comments

    MolecularSequence.variant has no related element in R5:MolecularSequence

    Control0..1
    30. Extension.extension:cigar.url
    Control1..1
    Fixed Valuecigar
    32. Extension.extension:cigar.value[x]
    Definition

    Extended CIGAR string for aligning the sequence with reference bases. See detailed documentation here.

    ShortExtended CIGAR string for aligning the sequence with reference bases
    Comments

    MolecularSequence.variant has no related element in R5:MolecularSequence

    Typestring
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    34. Extension.extension:variantPointer
    Slice NamevariantPointer
    Definition

    A pointer to an Observation containing variant information.

    ShortPointer to observed variant information
    Comments

    MolecularSequence.variant has no related element in R5:MolecularSequence

    Control0..1
    36. Extension.extension:variantPointer.url
    Control1..1
    Fixed ValuevariantPointer
    38. Extension.extension:variantPointer.value[x]
    Definition

    A pointer to an Observation containing variant information.

    ShortPointer to observed variant information
    Comments

    MolecularSequence.variant has no related element in R5:MolecularSequence

    TypeReference
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    40. Extension.url
    Control1..1
    Fixed Valuehttp://hl7.org/fhir/4.3/StructureDefinition/extension-MolecularSequence.variant

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

    0. Extension
    Definition

    The definition of variant here originates from Sequence ontology (variant_of). This element can represent amino acid or nucleic sequence change(including insertion,deletion,SNP,etc.) It can represent some complex mutation or segment variation with the assist of CIGAR string.


    Optional Extension Element - found in all resources.

    ShortVariant in sequenceOptional Extensions Element
    Comments

    MolecularSequence.variant has no related element in R5:MolecularSequence

    Control0..*
    Is Modifierfalse
    Invariantsele-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 managable, 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.

    ShortExtensionAdditional 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.

    Control0..*
    TypeExtension
    Is Modifierfalse
    Summaryfalse
    Alternate Namesextensions, user content
    Invariantsele-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())
    SlicingThis element introduces a set of slices on Extension.extension. The slices areUnordered and ClosedOpen, and can be differentiated using the following discriminators:
    • value @ url
    • 4. Extension.extension:start
      Slice Namestart
      Definition

      Start position of the variant on the reference sequence. If the coordinate system is either 0-based or 1-based, then start position is inclusive.

      ShortStart position of the variant on the reference sequenceAdditional content defined by implementations
      Comments

      MolecularSequence.variant has no related element in R5:MolecularSequence

      Control0..1*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Invariantsele-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:start.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies 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.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valuestart
      8. Extension.extension:start.value[x]
      Definition

      Start position of the variant on the reference sequence. If the coordinate system is either 0-based or 1-based, then start position is inclusive.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortStart position of the variant on the reference sequenceValue of extension
      Comments

      MolecularSequence.variant has no related element in R5:MolecularSequence

      Control0..1
      This element is affected by the following invariants: ext-1
      Typeinteger, date, Meta, Address, Attachment, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, Coding, SampledData, id, positiveInt, Distance, Availability, integer64, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ExtendedContactDetail, CodeableConcept, ParameterDefinition, dateTime, code, string, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, CodeableReference, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Invariantsele-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:end
      Slice Nameend
      Definition

      End position of the variant on the reference sequence. If the coordinate system is 0-based then end is exclusive and does not include the last position. If the coordinate system is 1-base, then end is inclusive and includes the last position.

      ShortEnd position of the variant on the reference sequenceAdditional content defined by implementations
      Comments

      MolecularSequence.variant has no related element in R5:MolecularSequence

      Control0..1*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Invariantsele-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:end.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies 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.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valueend
      14. Extension.extension:end.value[x]
      Definition

      End position of the variant on the reference sequence. If the coordinate system is 0-based then end is exclusive and does not include the last position. If the coordinate system is 1-base, then end is inclusive and includes the last position.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortEnd position of the variant on the reference sequenceValue of extension
      Comments

      MolecularSequence.variant has no related element in R5:MolecularSequence

      Control0..1
      This element is affected by the following invariants: ext-1
      Typeinteger, date, Meta, Address, Attachment, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, Coding, SampledData, id, positiveInt, Distance, Availability, integer64, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ExtendedContactDetail, CodeableConcept, ParameterDefinition, dateTime, code, string, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, CodeableReference, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Invariantsele-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:observedAllele
      Slice NameobservedAllele
      Definition

      An allele is one of a set of coexisting sequence variants of a gene (SO:0001023). Nucleotide(s)/amino acids from start position of sequence to stop position of sequence on the positive (+) strand of the observed sequence. When the sequence type is DNA, it should be the sequence on the positive (+) strand. This will lay in the range between variant.start and variant.end.

      ShortAllele that was observedAdditional content defined by implementations
      Comments

      MolecularSequence.variant has no related element in R5:MolecularSequence

      Control0..1*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Invariantsele-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:observedAllele.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies 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.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed ValueobservedAllele
      20. Extension.extension:observedAllele.value[x]
      Definition

      An allele is one of a set of coexisting sequence variants of a gene (SO:0001023). Nucleotide(s)/amino acids from start position of sequence to stop position of sequence on the positive (+) strand of the observed sequence. When the sequence type is DNA, it should be the sequence on the positive (+) strand. This will lay in the range between variant.start and variant.end.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortAllele that was observedValue of extension
      Comments

      MolecularSequence.variant has no related element in R5:MolecularSequence

      Control0..1
      This element is affected by the following invariants: ext-1
      Typestring, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, Coding, SampledData, id, positiveInt, Distance, Availability, integer64, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ExtendedContactDetail, CodeableConcept, ParameterDefinition, dateTime, code, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, CodeableReference, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Invariantsele-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:referenceAllele
      Slice NamereferenceAllele
      Definition

      An allele is one of a set of coexisting sequence variants of a gene (SO:0001023). Nucleotide(s)/amino acids from start position of sequence to stop position of sequence on the positive (+) strand of the reference sequence. When the sequence type is DNA, it should be the sequence on the positive (+) strand. This will lay in the range between variant.start and variant.end.

      ShortAllele in the reference sequenceAdditional content defined by implementations
      Comments

      MolecularSequence.variant has no related element in R5:MolecularSequence

      Control0..1*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Invariantsele-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:referenceAllele.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies 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.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed ValuereferenceAllele
      26. Extension.extension:referenceAllele.value[x]
      Definition

      An allele is one of a set of coexisting sequence variants of a gene (SO:0001023). Nucleotide(s)/amino acids from start position of sequence to stop position of sequence on the positive (+) strand of the reference sequence. When the sequence type is DNA, it should be the sequence on the positive (+) strand. This will lay in the range between variant.start and variant.end.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortAllele in the reference sequenceValue of extension
      Comments

      MolecularSequence.variant has no related element in R5:MolecularSequence

      Control0..1
      This element is affected by the following invariants: ext-1
      Typestring, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, Coding, SampledData, id, positiveInt, Distance, Availability, integer64, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ExtendedContactDetail, CodeableConcept, ParameterDefinition, dateTime, code, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, CodeableReference, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Invariantsele-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:cigar
      Slice Namecigar
      Definition

      Extended CIGAR string for aligning the sequence with reference bases. See detailed documentation here.

      ShortExtended CIGAR string for aligning the sequence with reference basesAdditional content defined by implementations
      Comments

      MolecularSequence.variant has no related element in R5:MolecularSequence

      Control0..1*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Invariantsele-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:cigar.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies 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.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valuecigar
      32. Extension.extension:cigar.value[x]
      Definition

      Extended CIGAR string for aligning the sequence with reference bases. See detailed documentation here.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortExtended CIGAR string for aligning the sequence with reference basesValue of extension
      Comments

      MolecularSequence.variant has no related element in R5:MolecularSequence

      Control0..1
      This element is affected by the following invariants: ext-1
      Typestring, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, Coding, SampledData, id, positiveInt, Distance, Availability, integer64, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ExtendedContactDetail, CodeableConcept, ParameterDefinition, dateTime, code, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, CodeableReference, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Invariantsele-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:variantPointer
      Slice NamevariantPointer
      Definition

      A pointer to an Observation containing variant information.

      ShortPointer to observed variant informationAdditional content defined by implementations
      Comments

      MolecularSequence.variant has no related element in R5:MolecularSequence

      Control0..1*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Invariantsele-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:variantPointer.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies 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.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed ValuevariantPointer
      38. Extension.extension:variantPointer.value[x]
      Definition

      A pointer to an Observation containing variant information.


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortPointer to observed variant informationValue of extension
      Comments

      MolecularSequence.variant has no related element in R5:MolecularSequence

      Control0..1
      This element is affected by the following invariants: ext-1
      TypeReference, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, Coding, SampledData, id, positiveInt, Distance, Availability, integer64, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ExtendedContactDetail, CodeableConcept, ParameterDefinition, dateTime, code, string, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, CodeableReference, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Summaryfalse
      Invariantsele-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.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies 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.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valuehttp://hl7.org/fhir/4.3/StructureDefinition/extension-MolecularSequence.variant

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

      0. Extension
      Definition

      The definition of variant here originates from Sequence ontology (variant_of). This element can represent amino acid or nucleic sequence change(including insertion,deletion,SNP,etc.) It can represent some complex mutation or segment variation with the assist of CIGAR string.

      ShortVariant in sequence
      Comments

      MolecularSequence.variant has no related element in R5:MolecularSequence

      Control0..*
      Is Modifierfalse
      Invariantsele-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.

      ShortUnique id for inter-element referencing
      Control0..1
      This element is affected by the following invariants: ele-1
      Typeid
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      4. Extension.extension
      Definition

      An Extension

      ShortExtension
      Control0..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Invariantsele-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())
      SlicingThis element introduces a set of slices on Extension.extension. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
      • value @ url
      • 6. Extension.extension:start
        Slice Namestart
        Definition

        Start position of the variant on the reference sequence. If the coordinate system is either 0-based or 1-based, then start position is inclusive.

        ShortStart position of the variant on the reference sequence
        Comments

        MolecularSequence.variant has no related element in R5:MolecularSequence

        Control0..1
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Invariantsele-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:start.id
        Definition

        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

        ShortUnique id for inter-element referencing
        Control0..1
        This element is affected by the following invariants: ele-1
        Typeid
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        10. Extension.extension:start.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 managable, 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.

        ShortAdditional 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.

        Control0..*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-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())
        SlicingThis 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:start.url
          Definition

          Source of the definition for the extension code - a logical name or a URL.

          Shortidentifies 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.

          Control1..1
          Typeuri
          Is Modifierfalse
          XML FormatIn the XML format, this property is represented as an attribute.
          Summaryfalse
          Fixed Valuestart
          14. Extension.extension:start.value[x]
          Definition

          Start position of the variant on the reference sequence. If the coordinate system is either 0-based or 1-based, then start position is inclusive.

          ShortStart position of the variant on the reference sequence
          Comments

          MolecularSequence.variant has no related element in R5:MolecularSequence

          Control0..1
          This element is affected by the following invariants: ext-1
          Typeinteger
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          16. Extension.extension:end
          Slice Nameend
          Definition

          End position of the variant on the reference sequence. If the coordinate system is 0-based then end is exclusive and does not include the last position. If the coordinate system is 1-base, then end is inclusive and includes the last position.

          ShortEnd position of the variant on the reference sequence
          Comments

          MolecularSequence.variant has no related element in R5:MolecularSequence

          Control0..1
          TypeExtension
          Is Modifierfalse
          Summaryfalse
          Invariantsele-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:end.id
          Definition

          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

          ShortUnique id for inter-element referencing
          Control0..1
          This element is affected by the following invariants: ele-1
          Typeid
          Is Modifierfalse
          XML FormatIn the XML format, this property is represented as an attribute.
          Summaryfalse
          20. Extension.extension:end.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 managable, 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.

          ShortAdditional 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.

          Control0..*
          TypeExtension
          Is Modifierfalse
          Summaryfalse
          Alternate Namesextensions, user content
          Invariantsele-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())
          SlicingThis 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:end.url
            Definition

            Source of the definition for the extension code - a logical name or a URL.

            Shortidentifies 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.

            Control1..1
            Typeuri
            Is Modifierfalse
            XML FormatIn the XML format, this property is represented as an attribute.
            Summaryfalse
            Fixed Valueend
            24. Extension.extension:end.value[x]
            Definition

            End position of the variant on the reference sequence. If the coordinate system is 0-based then end is exclusive and does not include the last position. If the coordinate system is 1-base, then end is inclusive and includes the last position.

            ShortEnd position of the variant on the reference sequence
            Comments

            MolecularSequence.variant has no related element in R5:MolecularSequence

            Control0..1
            This element is affected by the following invariants: ext-1
            Typeinteger
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            26. Extension.extension:observedAllele
            Slice NameobservedAllele
            Definition

            An allele is one of a set of coexisting sequence variants of a gene (SO:0001023). Nucleotide(s)/amino acids from start position of sequence to stop position of sequence on the positive (+) strand of the observed sequence. When the sequence type is DNA, it should be the sequence on the positive (+) strand. This will lay in the range between variant.start and variant.end.

            ShortAllele that was observed
            Comments

            MolecularSequence.variant has no related element in R5:MolecularSequence

            Control0..1
            TypeExtension
            Is Modifierfalse
            Summaryfalse
            Invariantsele-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:observedAllele.id
            Definition

            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

            ShortUnique id for inter-element referencing
            Control0..1
            This element is affected by the following invariants: ele-1
            Typeid
            Is Modifierfalse
            XML FormatIn the XML format, this property is represented as an attribute.
            Summaryfalse
            30. Extension.extension:observedAllele.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 managable, 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.

            ShortAdditional 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.

            Control0..*
            TypeExtension
            Is Modifierfalse
            Summaryfalse
            Alternate Namesextensions, user content
            Invariantsele-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())
            SlicingThis 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:observedAllele.url
              Definition

              Source of the definition for the extension code - a logical name or a URL.

              Shortidentifies 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.

              Control1..1
              Typeuri
              Is Modifierfalse
              XML FormatIn the XML format, this property is represented as an attribute.
              Summaryfalse
              Fixed ValueobservedAllele
              34. Extension.extension:observedAllele.value[x]
              Definition

              An allele is one of a set of coexisting sequence variants of a gene (SO:0001023). Nucleotide(s)/amino acids from start position of sequence to stop position of sequence on the positive (+) strand of the observed sequence. When the sequence type is DNA, it should be the sequence on the positive (+) strand. This will lay in the range between variant.start and variant.end.

              ShortAllele that was observed
              Comments

              MolecularSequence.variant has no related element in R5:MolecularSequence

              Control0..1
              This element is affected by the following invariants: ext-1
              Typestring
              [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              36. Extension.extension:referenceAllele
              Slice NamereferenceAllele
              Definition

              An allele is one of a set of coexisting sequence variants of a gene (SO:0001023). Nucleotide(s)/amino acids from start position of sequence to stop position of sequence on the positive (+) strand of the reference sequence. When the sequence type is DNA, it should be the sequence on the positive (+) strand. This will lay in the range between variant.start and variant.end.

              ShortAllele in the reference sequence
              Comments

              MolecularSequence.variant has no related element in R5:MolecularSequence

              Control0..1
              TypeExtension
              Is Modifierfalse
              Summaryfalse
              Invariantsele-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:referenceAllele.id
              Definition

              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

              ShortUnique id for inter-element referencing
              Control0..1
              This element is affected by the following invariants: ele-1
              Typeid
              Is Modifierfalse
              XML FormatIn the XML format, this property is represented as an attribute.
              Summaryfalse
              40. Extension.extension:referenceAllele.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 managable, 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.

              ShortAdditional 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.

              Control0..*
              TypeExtension
              Is Modifierfalse
              Summaryfalse
              Alternate Namesextensions, user content
              Invariantsele-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())
              SlicingThis 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:referenceAllele.url
                Definition

                Source of the definition for the extension code - a logical name or a URL.

                Shortidentifies 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.

                Control1..1
                Typeuri
                Is Modifierfalse
                XML FormatIn the XML format, this property is represented as an attribute.
                Summaryfalse
                Fixed ValuereferenceAllele
                44. Extension.extension:referenceAllele.value[x]
                Definition

                An allele is one of a set of coexisting sequence variants of a gene (SO:0001023). Nucleotide(s)/amino acids from start position of sequence to stop position of sequence on the positive (+) strand of the reference sequence. When the sequence type is DNA, it should be the sequence on the positive (+) strand. This will lay in the range between variant.start and variant.end.

                ShortAllele in the reference sequence
                Comments

                MolecularSequence.variant has no related element in R5:MolecularSequence

                Control0..1
                This element is affected by the following invariants: ext-1
                Typestring
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                Is Modifierfalse
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Summaryfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                46. Extension.extension:cigar
                Slice Namecigar
                Definition

                Extended CIGAR string for aligning the sequence with reference bases. See detailed documentation here.

                ShortExtended CIGAR string for aligning the sequence with reference bases
                Comments

                MolecularSequence.variant has no related element in R5:MolecularSequence

                Control0..1
                TypeExtension
                Is Modifierfalse
                Summaryfalse
                Invariantsele-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:cigar.id
                Definition

                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                ShortUnique id for inter-element referencing
                Control0..1
                This element is affected by the following invariants: ele-1
                Typeid
                Is Modifierfalse
                XML FormatIn the XML format, this property is represented as an attribute.
                Summaryfalse
                50. Extension.extension:cigar.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 managable, 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.

                ShortAdditional 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.

                Control0..*
                TypeExtension
                Is Modifierfalse
                Summaryfalse
                Alternate Namesextensions, user content
                Invariantsele-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())
                SlicingThis 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:cigar.url
                  Definition

                  Source of the definition for the extension code - a logical name or a URL.

                  Shortidentifies 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.

                  Control1..1
                  Typeuri
                  Is Modifierfalse
                  XML FormatIn the XML format, this property is represented as an attribute.
                  Summaryfalse
                  Fixed Valuecigar
                  54. Extension.extension:cigar.value[x]
                  Definition

                  Extended CIGAR string for aligning the sequence with reference bases. See detailed documentation here.

                  ShortExtended CIGAR string for aligning the sequence with reference bases
                  Comments

                  MolecularSequence.variant has no related element in R5:MolecularSequence

                  Control0..1
                  This element is affected by the following invariants: ext-1
                  Typestring
                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  56. Extension.extension:variantPointer
                  Slice NamevariantPointer
                  Definition

                  A pointer to an Observation containing variant information.

                  ShortPointer to observed variant information
                  Comments

                  MolecularSequence.variant has no related element in R5:MolecularSequence

                  Control0..1
                  TypeExtension
                  Is Modifierfalse
                  Summaryfalse
                  Invariantsele-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:variantPointer.id
                  Definition

                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                  ShortUnique id for inter-element referencing
                  Control0..1
                  This element is affected by the following invariants: ele-1
                  Typeid
                  Is Modifierfalse
                  XML FormatIn the XML format, this property is represented as an attribute.
                  Summaryfalse
                  60. Extension.extension:variantPointer.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 managable, 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.

                  ShortAdditional 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.

                  Control0..*
                  TypeExtension
                  Is Modifierfalse
                  Summaryfalse
                  Alternate Namesextensions, user content
                  Invariantsele-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())
                  SlicingThis 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:variantPointer.url
                    Definition

                    Source of the definition for the extension code - a logical name or a URL.

                    Shortidentifies 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.

                    Control1..1
                    Typeuri
                    Is Modifierfalse
                    XML FormatIn the XML format, this property is represented as an attribute.
                    Summaryfalse
                    Fixed ValuevariantPointer
                    64. Extension.extension:variantPointer.value[x]
                    Definition

                    A pointer to an Observation containing variant information.

                    ShortPointer to observed variant information
                    Comments

                    MolecularSequence.variant has no related element in R5:MolecularSequence

                    Control0..1
                    This element is affected by the following invariants: ext-1
                    TypeReference
                    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                    Is Modifierfalse
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    66. Extension.url
                    Definition

                    Source of the definition for the extension code - a logical name or a URL.

                    Shortidentifies 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.

                    Control1..1
                    Typeuri
                    Is Modifierfalse
                    XML FormatIn the XML format, this property is represented as an attribute.
                    Summaryfalse
                    Fixed Valuehttp://hl7.org/fhir/4.3/StructureDefinition/extension-MolecularSequence.variant
                    68. Extension.value[x]
                    Definition

                    Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

                    ShortValue of extension
                    Control0..1
                    This element is affected by the following invariants: ext-1
                    TypeChoice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, integer64, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, CodeableReference, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, RatioRange, Reference, SampledData, Signature, Timing, ContactDetail, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Availability, ExtendedContactDetail, Dosage, Meta
                    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))