{
  "description": "R4: `SubstanceProtein.subunit` (new:BackboneElement)",
  "_filename": "StructureDefinition-ext-R4-SubstanceProtein.subunit.json",
  "package_name": "hl7.fhir.uv.xver-r4.r5",
  "date": "2026-03-17T21:02:03.8104715+00:00",
  "derivation": "constraint",
  "publisher": "FHIR Infrastructure",
  "fhirVersion": "5.0.0",
  "jurisdiction": [ {
    "coding": [ {
      "code": "001",
      "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "display": "World"
    } ]
  } ],
  "purpose": "This extension is part of the cross-version definitions generated to enable use of the\r\nelement `SubstanceProtein.subunit` as defined in FHIR R4\r\nin FHIR R5.\r\n\r\nThe source element is defined as:\r\n`SubstanceProtein.subunit` 0..* `BackboneElement`\r\n\r\nAcross FHIR versions, the element set has been mapped as:\r\n* R4 `SubstanceProtein.subunit` 0..* `BackboneElement`\r\n\r\nFollowing are the generation technical comments:\r\nElement `SubstanceProtein.subunit` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
  "name": "ExtensionSubstanceProtein_Subunit",
  "mapping": [ {
    "uri": "http://hl7.org/v3",
    "name": "RIM Mapping",
    "identity": "rim"
  } ],
  "abstract": false,
  "type": "Extension",
  "experimental": "false",
  "resourceType": "StructureDefinition",
  "title": "R4: This subclause refers to the description of each subunit constituting the SubstanceProtein. A subunit is a linear sequence of amino acids linked through peptide bonds. The Subunit information shall be provided when the finished SubstanceProtein is a complex of multiple sequences; subunits are not used to delineate domains within a single sequence. Subunits are listed in order of decreasing length; sequences of the same length will be ordered by decreasing molecular weight; subunits that have identical sequences will be repeated multiple times (new)",
  "package_version": "0.1.0",
  "extension": [ {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode": "fhir"
  }, {
    "url": "http://hl7.org/fhir/StructureDefinition/package-source",
    "extension": [ {
      "url": "packageId",
      "valueId": "hl7.fhir.uv.xver-r4.r5"
    }, {
      "url": "version",
      "valueString": "0.1.0"
    }, {
      "url": "uri",
      "valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r5"
    } ]
  }, {
    "url": "http://hl7.org/fhir/StructureDefinition/version-specific-use",
    "extension": [ {
      "url": "startFhirVersion",
      "valueCode": "5.0"
    }, {
      "url": "endFhirVersion",
      "valueCode": "5.0"
    } ]
  }, {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics",
    "valueCode": "can-bind"
  }, {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger": 0,
    "_valueInteger": {
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
        "valueCanonical": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r5"
      } ]
    }
  }, {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode": "trial-use",
    "_valueCode": {
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
        "valueCanonical": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r5"
      } ]
    }
  } ],
  "snapshot": {
    "element": [ {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit` (new:BackboneElement)",
      "isModifier": false,
      "short": "R4: This subclause refers to the description of each subunit constituting the SubstanceProtein. A subunit is a linear sequence of amino acids linked through peptide bonds. The Subunit information shall be provided when the finished SubstanceProtein is a complex of multiple sequences; subunits are not used to delineate domains within a single sequence. Subunits are listed in order of decreasing length; sequences of the same length will be ordered by decreasing molecular weight; subunits that have identical sequences will be repeated multiple times (new)",
      "max": "*",
      "id": "Extension",
      "comment": "Element `SubstanceProtein.subunit` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Extension"
      }
    }, {
      "path": "Extension.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "id"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.id",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension",
      "min": 0,
      "definition": "An Extension",
      "isModifier": false,
      "short": "Extension",
      "slicing": {
        "rules": "open",
        "ordered": false,
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "max": "*",
      "id": "Extension.extension",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.subunit` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.subunit` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.subunit` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.subunit` (new:integer)",
      "isModifier": false,
      "short": "R4: Index of primary sequences of amino acids linked through peptide bonds 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)",
      "type": [ {
        "code": "Extension"
      } ],
      "sliceName": "subunit",
      "max": "1",
      "id": "Extension.extension:subunit",
      "comment": "Element `SubstanceProtein.subunit.subunit` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.subunit` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.subunit` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "id"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:subunit.id",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Extension.extension:subunit.extension",
      "comment": "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.url",
      "min": 1,
      "definition": "Source of the definition for the extension code - a logical name or a URL.",
      "isModifier": false,
      "short": "identifies the meaning of the extension",
      "fixedUri": "subunit",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "uri"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:subunit.url",
      "comment": "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.",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Extension.extension.value[x]",
      "min": 0,
      "definition": "Index of primary sequences of amino acids linked through peptide bonds 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.",
      "isModifier": false,
      "short": "Index of primary sequences of amino acids linked through peptide bonds 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",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "integer"
      } ],
      "max": "1",
      "id": "Extension.extension:subunit.value[x]",
      "condition": [ "ext-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.sequence` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.sequence` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.sequence` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.sequence` (new:string)",
      "isModifier": false,
      "short": "R4: The sequence information shall be provided enumerating the amino acids from N- to C-terminal end using standard single-letter amino acid codes. Uppercase shall be used for L-amino acids and lowercase for D-amino acids. Transcribed SubstanceProteins will always be described using the translated sequence; for synthetic peptide containing amino acids that are not represented with a single letter code an X should be used within the sequence. The modified amino acids will be distinguished by their position in the sequence (new)",
      "type": [ {
        "code": "Extension"
      } ],
      "sliceName": "sequence",
      "max": "1",
      "id": "Extension.extension:sequence",
      "comment": "Element `SubstanceProtein.subunit.sequence` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.sequence` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.sequence` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "id"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:sequence.id",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Extension.extension:sequence.extension",
      "comment": "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.url",
      "min": 1,
      "definition": "Source of the definition for the extension code - a logical name or a URL.",
      "isModifier": false,
      "short": "identifies the meaning of the extension",
      "fixedUri": "sequence",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "uri"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:sequence.url",
      "comment": "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.",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Extension.extension.value[x]",
      "min": 0,
      "definition": "The sequence information shall be provided enumerating the amino acids from N- to C-terminal end using standard single-letter amino acid codes. Uppercase shall be used for L-amino acids and lowercase for D-amino acids. Transcribed SubstanceProteins will always be described using the translated sequence; for synthetic peptide containing amino acids that are not represented with a single letter code an X should be used within the sequence. The modified amino acids will be distinguished by their position in the sequence.",
      "isModifier": false,
      "short": "The sequence information shall be provided enumerating the amino acids from N- to C-terminal end using standard single-letter amino acid codes. Uppercase shall be used for L-amino acids and lowercase for D-amino acids. Transcribed SubstanceProteins will always be described using the translated sequence; for synthetic peptide containing amino acids that are not represented with a single letter code an X should be used within the sequence. The modified amino acids will be distinguished by their position in the sequence",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "max": "1",
      "id": "Extension.extension:sequence.value[x]",
      "condition": [ "ext-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.length` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.length` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.length` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.length` (new:integer)",
      "isModifier": false,
      "short": "R4: Length of linear sequences of amino acids contained in the subunit (new)",
      "type": [ {
        "code": "Extension"
      } ],
      "sliceName": "length",
      "max": "1",
      "id": "Extension.extension:length",
      "comment": "Element `SubstanceProtein.subunit.length` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.length` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.length` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "id"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:length.id",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Extension.extension:length.extension",
      "comment": "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.url",
      "min": 1,
      "definition": "Source of the definition for the extension code - a logical name or a URL.",
      "isModifier": false,
      "short": "identifies the meaning of the extension",
      "fixedUri": "length",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "uri"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:length.url",
      "comment": "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.",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Extension.extension.value[x]",
      "min": 0,
      "definition": "Length of linear sequences of amino acids contained in the subunit.",
      "isModifier": false,
      "short": "Length of linear sequences of amino acids contained in the subunit",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "integer"
      } ],
      "max": "1",
      "id": "Extension.extension:length.value[x]",
      "condition": [ "ext-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.sequenceAttachment` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.sequenceAttachment` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.sequenceAttachment` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.sequenceAttachment` (new:Attachment)",
      "isModifier": false,
      "short": "R4: The sequence information shall be provided enumerating the amino acids from N- to C-terminal end using standard single-letter amino acid codes. Uppercase shall be used for L-amino acids and lowercase for D-amino acids. Transcribed SubstanceProteins will always be described using the translated sequence; for synthetic peptide containing amino acids that are not represented with a single letter code an X should be used within the sequence. The modified amino acids will be distinguished by their position in the sequence (new)",
      "type": [ {
        "code": "Extension"
      } ],
      "sliceName": "sequenceAttachment",
      "max": "1",
      "id": "Extension.extension:sequenceAttachment",
      "comment": "Element `SubstanceProtein.subunit.sequenceAttachment` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.sequenceAttachment` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.sequenceAttachment` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "id"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:sequenceAttachment.id",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Extension.extension:sequenceAttachment.extension",
      "comment": "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.url",
      "min": 1,
      "definition": "Source of the definition for the extension code - a logical name or a URL.",
      "isModifier": false,
      "short": "identifies the meaning of the extension",
      "fixedUri": "sequenceAttachment",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "uri"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:sequenceAttachment.url",
      "comment": "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.",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Extension.extension.value[x]",
      "min": 0,
      "definition": "The sequence information shall be provided enumerating the amino acids from N- to C-terminal end using standard single-letter amino acid codes. Uppercase shall be used for L-amino acids and lowercase for D-amino acids. Transcribed SubstanceProteins will always be described using the translated sequence; for synthetic peptide containing amino acids that are not represented with a single letter code an X should be used within the sequence. The modified amino acids will be distinguished by their position in the sequence.",
      "isModifier": false,
      "short": "The sequence information shall be provided enumerating the amino acids from N- to C-terminal end using standard single-letter amino acid codes. Uppercase shall be used for L-amino acids and lowercase for D-amino acids. Transcribed SubstanceProteins will always be described using the translated sequence; for synthetic peptide containing amino acids that are not represented with a single letter code an X should be used within the sequence. The modified amino acids will be distinguished by their position in the sequence",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Attachment"
      } ],
      "max": "1",
      "id": "Extension.extension:sequenceAttachment.value[x]",
      "condition": [ "ext-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.nTerminalModificationId` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.nTerminalModificationId` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.nTerminalModificationId` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.nTerminalModificationId` (new:Identifier)",
      "isModifier": false,
      "short": "R4: Unique identifier for molecular fragment modification based on the ISO 11238 Substance ID (new)",
      "type": [ {
        "code": "Extension"
      } ],
      "sliceName": "nTerminalModificationId",
      "max": "1",
      "id": "Extension.extension:nTerminalModificationId",
      "comment": "Element `SubstanceProtein.subunit.nTerminalModificationId` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.nTerminalModificationId` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.nTerminalModificationId` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "id"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:nTerminalModificationId.id",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Extension.extension:nTerminalModificationId.extension",
      "comment": "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.url",
      "min": 1,
      "definition": "Source of the definition for the extension code - a logical name or a URL.",
      "isModifier": false,
      "short": "identifies the meaning of the extension",
      "fixedUri": "nTerminalModificationId",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "uri"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:nTerminalModificationId.url",
      "comment": "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.",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Extension.extension.value[x]",
      "min": 0,
      "definition": "Unique identifier for molecular fragment modification based on the ISO 11238 Substance ID.",
      "isModifier": false,
      "short": "Unique identifier for molecular fragment modification based on the ISO 11238 Substance ID",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Identifier"
      } ],
      "max": "1",
      "id": "Extension.extension:nTerminalModificationId.value[x]",
      "condition": [ "ext-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.nTerminalModification` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.nTerminalModification` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.nTerminalModification` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.nTerminalModification` (new:string)",
      "isModifier": false,
      "short": "R4: The name of the fragment modified at the N-terminal of the SubstanceProtein shall be specified (new)",
      "type": [ {
        "code": "Extension"
      } ],
      "sliceName": "nTerminalModification",
      "max": "1",
      "id": "Extension.extension:nTerminalModification",
      "comment": "Element `SubstanceProtein.subunit.nTerminalModification` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.nTerminalModification` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.nTerminalModification` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "id"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:nTerminalModification.id",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Extension.extension:nTerminalModification.extension",
      "comment": "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.url",
      "min": 1,
      "definition": "Source of the definition for the extension code - a logical name or a URL.",
      "isModifier": false,
      "short": "identifies the meaning of the extension",
      "fixedUri": "nTerminalModification",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "uri"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:nTerminalModification.url",
      "comment": "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.",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Extension.extension.value[x]",
      "min": 0,
      "definition": "The name of the fragment modified at the N-terminal of the SubstanceProtein shall be specified.",
      "isModifier": false,
      "short": "The name of the fragment modified at the N-terminal of the SubstanceProtein shall be specified",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "max": "1",
      "id": "Extension.extension:nTerminalModification.value[x]",
      "condition": [ "ext-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.cTerminalModificationId` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.cTerminalModificationId` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.cTerminalModificationId` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.cTerminalModificationId` (new:Identifier)",
      "isModifier": false,
      "short": "R4: Unique identifier for molecular fragment modification based on the ISO 11238 Substance ID (new)",
      "type": [ {
        "code": "Extension"
      } ],
      "sliceName": "cTerminalModificationId",
      "max": "1",
      "id": "Extension.extension:cTerminalModificationId",
      "comment": "Element `SubstanceProtein.subunit.cTerminalModificationId` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.cTerminalModificationId` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.cTerminalModificationId` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "id"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:cTerminalModificationId.id",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Extension.extension:cTerminalModificationId.extension",
      "comment": "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.url",
      "min": 1,
      "definition": "Source of the definition for the extension code - a logical name or a URL.",
      "isModifier": false,
      "short": "identifies the meaning of the extension",
      "fixedUri": "cTerminalModificationId",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "uri"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:cTerminalModificationId.url",
      "comment": "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.",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Extension.extension.value[x]",
      "min": 0,
      "definition": "Unique identifier for molecular fragment modification based on the ISO 11238 Substance ID.",
      "isModifier": false,
      "short": "Unique identifier for molecular fragment modification based on the ISO 11238 Substance ID",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Identifier"
      } ],
      "max": "1",
      "id": "Extension.extension:cTerminalModificationId.value[x]",
      "condition": [ "ext-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.cTerminalModification` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.cTerminalModification` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.cTerminalModification` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.cTerminalModification` (new:string)",
      "isModifier": false,
      "short": "R4: The modification at the C-terminal shall be specified (new)",
      "type": [ {
        "code": "Extension"
      } ],
      "sliceName": "cTerminalModification",
      "max": "1",
      "id": "Extension.extension:cTerminalModification",
      "comment": "Element `SubstanceProtein.subunit.cTerminalModification` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.cTerminalModification` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.cTerminalModification` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "id"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:cTerminalModification.id",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Extension.extension:cTerminalModification.extension",
      "comment": "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "Extension.extension.url",
      "min": 1,
      "definition": "Source of the definition for the extension code - a logical name or a URL.",
      "isModifier": false,
      "short": "identifies the meaning of the extension",
      "fixedUri": "cTerminalModification",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "uri"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.extension:cTerminalModification.url",
      "comment": "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.",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Extension.extension.value[x]",
      "min": 0,
      "definition": "The modification at the C-terminal shall be specified.",
      "isModifier": false,
      "short": "The modification at the C-terminal shall be specified",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "max": "1",
      "id": "Extension.extension:cTerminalModification.value[x]",
      "condition": [ "ext-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "isSummary": false
    }, {
      "path": "Extension.url",
      "min": 1,
      "definition": "Source of the definition for the extension code - a logical name or a URL.",
      "isModifier": false,
      "short": "identifies the meaning of the extension",
      "fixedUri": "http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceProtein.subunit",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "uri"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension.url",
      "comment": "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.",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "source": "http://hl7.org/fhir/StructureDefinition/Element|5.0.0",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Extension.value[x]",
      "min": 0,
      "definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R5/extensibility.html) for a list).",
      "isModifier": false,
      "short": "Value of extension",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "base64Binary"
      }, {
        "code": "boolean"
      }, {
        "code": "canonical"
      }, {
        "code": "code"
      }, {
        "code": "date"
      }, {
        "code": "dateTime"
      }, {
        "code": "decimal"
      }, {
        "code": "id"
      }, {
        "code": "instant"
      }, {
        "code": "integer"
      }, {
        "code": "integer64"
      }, {
        "code": "markdown"
      }, {
        "code": "oid"
      }, {
        "code": "positiveInt"
      }, {
        "code": "string"
      }, {
        "code": "time"
      }, {
        "code": "unsignedInt"
      }, {
        "code": "uri"
      }, {
        "code": "url"
      }, {
        "code": "uuid"
      }, {
        "code": "Address"
      }, {
        "code": "Age"
      }, {
        "code": "Annotation"
      }, {
        "code": "Attachment"
      }, {
        "code": "CodeableConcept"
      }, {
        "code": "CodeableReference"
      }, {
        "code": "Coding"
      }, {
        "code": "ContactPoint"
      }, {
        "code": "Count"
      }, {
        "code": "Distance"
      }, {
        "code": "Duration"
      }, {
        "code": "HumanName"
      }, {
        "code": "Identifier"
      }, {
        "code": "Money"
      }, {
        "code": "Period"
      }, {
        "code": "Quantity"
      }, {
        "code": "Range"
      }, {
        "code": "Ratio"
      }, {
        "code": "RatioRange"
      }, {
        "code": "Reference"
      }, {
        "code": "SampledData"
      }, {
        "code": "Signature"
      }, {
        "code": "Timing"
      }, {
        "code": "ContactDetail"
      }, {
        "code": "DataRequirement"
      }, {
        "code": "Expression"
      }, {
        "code": "ParameterDefinition"
      }, {
        "code": "RelatedArtifact"
      }, {
        "code": "TriggerDefinition"
      }, {
        "code": "UsageContext"
      }, {
        "code": "Availability"
      }, {
        "code": "ExtendedContactDetail"
      }, {
        "code": "Dosage"
      }, {
        "code": "Meta"
      } ],
      "max": "0",
      "id": "Extension.value[x]",
      "condition": [ "ext-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "isSummary": false
    } ],
    "extension": [ {
      "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
      "valueString": "5.0.0"
    } ]
  },
  "status": "active",
  "id": "9b7c710e-913d-461b-8bb4-a44992ff468b",
  "kind": "complex-type",
  "url": "http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceProtein.subunit",
  "context": [ {
    "type": "element",
    "expression": "Basic"
  } ],
  "version": "0.1.0",
  "differential": {
    "element": [ {
      "path": "Extension",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit` (new:BackboneElement)",
      "isModifier": false,
      "short": "R4: This subclause refers to the description of each subunit constituting the SubstanceProtein. A subunit is a linear sequence of amino acids linked through peptide bonds. The Subunit information shall be provided when the finished SubstanceProtein is a complex of multiple sequences; subunits are not used to delineate domains within a single sequence. Subunits are listed in order of decreasing length; sequences of the same length will be ordered by decreasing molecular weight; subunits that have identical sequences will be repeated multiple times (new)",
      "max": "*",
      "id": "Extension",
      "comment": "Element `SubstanceProtein.subunit` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Extension"
      }
    }, {
      "id": "Extension.extension",
      "max": "*",
      "min": 0,
      "base": {
        "max": "*",
        "min": 0,
        "path": "Extension.extension"
      },
      "path": "Extension.extension",
      "slicing": {
        "rules": "open",
        "ordered": false,
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      }
    }, {
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.subunit` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.subunit` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.subunit` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.subunit` (new:integer)",
      "short": "R4: Index of primary sequences of amino acids linked through peptide bonds 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)",
      "sliceName": "subunit",
      "max": "1",
      "id": "Extension.extension:subunit",
      "comment": "Element `SubstanceProtein.subunit.subunit` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.subunit` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.subunit` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Extension.extension"
      }
    }, {
      "id": "Extension.extension:subunit.url",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "path": "Extension.extension.url",
      "fixedUri": "subunit"
    }, {
      "id": "Extension.extension:subunit.value[x]",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "path": "Extension.extension.value[x]",
      "type": [ {
        "code": "integer"
      } ],
      "short": "Index of primary sequences of amino acids linked through peptide bonds 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",
      "definition": "Index of primary sequences of amino acids linked through peptide bonds 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."
    }, {
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.sequence` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.sequence` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.sequence` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.sequence` (new:string)",
      "short": "R4: The sequence information shall be provided enumerating the amino acids from N- to C-terminal end using standard single-letter amino acid codes. Uppercase shall be used for L-amino acids and lowercase for D-amino acids. Transcribed SubstanceProteins will always be described using the translated sequence; for synthetic peptide containing amino acids that are not represented with a single letter code an X should be used within the sequence. The modified amino acids will be distinguished by their position in the sequence (new)",
      "sliceName": "sequence",
      "max": "1",
      "id": "Extension.extension:sequence",
      "comment": "Element `SubstanceProtein.subunit.sequence` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.sequence` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.sequence` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Extension.extension"
      }
    }, {
      "id": "Extension.extension:sequence.url",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "path": "Extension.extension.url",
      "fixedUri": "sequence"
    }, {
      "id": "Extension.extension:sequence.value[x]",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "path": "Extension.extension.value[x]",
      "type": [ {
        "code": "string"
      } ],
      "short": "The sequence information shall be provided enumerating the amino acids from N- to C-terminal end using standard single-letter amino acid codes. Uppercase shall be used for L-amino acids and lowercase for D-amino acids. Transcribed SubstanceProteins will always be described using the translated sequence; for synthetic peptide containing amino acids that are not represented with a single letter code an X should be used within the sequence. The modified amino acids will be distinguished by their position in the sequence",
      "definition": "The sequence information shall be provided enumerating the amino acids from N- to C-terminal end using standard single-letter amino acid codes. Uppercase shall be used for L-amino acids and lowercase for D-amino acids. Transcribed SubstanceProteins will always be described using the translated sequence; for synthetic peptide containing amino acids that are not represented with a single letter code an X should be used within the sequence. The modified amino acids will be distinguished by their position in the sequence."
    }, {
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.length` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.length` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.length` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.length` (new:integer)",
      "short": "R4: Length of linear sequences of amino acids contained in the subunit (new)",
      "sliceName": "length",
      "max": "1",
      "id": "Extension.extension:length",
      "comment": "Element `SubstanceProtein.subunit.length` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.length` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.length` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Extension.extension"
      }
    }, {
      "id": "Extension.extension:length.url",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "path": "Extension.extension.url",
      "fixedUri": "length"
    }, {
      "id": "Extension.extension:length.value[x]",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "path": "Extension.extension.value[x]",
      "type": [ {
        "code": "integer"
      } ],
      "short": "Length of linear sequences of amino acids contained in the subunit",
      "definition": "Length of linear sequences of amino acids contained in the subunit."
    }, {
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.sequenceAttachment` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.sequenceAttachment` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.sequenceAttachment` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.sequenceAttachment` (new:Attachment)",
      "short": "R4: The sequence information shall be provided enumerating the amino acids from N- to C-terminal end using standard single-letter amino acid codes. Uppercase shall be used for L-amino acids and lowercase for D-amino acids. Transcribed SubstanceProteins will always be described using the translated sequence; for synthetic peptide containing amino acids that are not represented with a single letter code an X should be used within the sequence. The modified amino acids will be distinguished by their position in the sequence (new)",
      "sliceName": "sequenceAttachment",
      "max": "1",
      "id": "Extension.extension:sequenceAttachment",
      "comment": "Element `SubstanceProtein.subunit.sequenceAttachment` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.sequenceAttachment` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.sequenceAttachment` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Extension.extension"
      }
    }, {
      "id": "Extension.extension:sequenceAttachment.url",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "path": "Extension.extension.url",
      "fixedUri": "sequenceAttachment"
    }, {
      "id": "Extension.extension:sequenceAttachment.value[x]",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "path": "Extension.extension.value[x]",
      "type": [ {
        "code": "Attachment"
      } ],
      "short": "The sequence information shall be provided enumerating the amino acids from N- to C-terminal end using standard single-letter amino acid codes. Uppercase shall be used for L-amino acids and lowercase for D-amino acids. Transcribed SubstanceProteins will always be described using the translated sequence; for synthetic peptide containing amino acids that are not represented with a single letter code an X should be used within the sequence. The modified amino acids will be distinguished by their position in the sequence",
      "definition": "The sequence information shall be provided enumerating the amino acids from N- to C-terminal end using standard single-letter amino acid codes. Uppercase shall be used for L-amino acids and lowercase for D-amino acids. Transcribed SubstanceProteins will always be described using the translated sequence; for synthetic peptide containing amino acids that are not represented with a single letter code an X should be used within the sequence. The modified amino acids will be distinguished by their position in the sequence."
    }, {
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.nTerminalModificationId` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.nTerminalModificationId` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.nTerminalModificationId` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.nTerminalModificationId` (new:Identifier)",
      "short": "R4: Unique identifier for molecular fragment modification based on the ISO 11238 Substance ID (new)",
      "sliceName": "nTerminalModificationId",
      "max": "1",
      "id": "Extension.extension:nTerminalModificationId",
      "comment": "Element `SubstanceProtein.subunit.nTerminalModificationId` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.nTerminalModificationId` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.nTerminalModificationId` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Extension.extension"
      }
    }, {
      "id": "Extension.extension:nTerminalModificationId.url",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "path": "Extension.extension.url",
      "fixedUri": "nTerminalModificationId"
    }, {
      "id": "Extension.extension:nTerminalModificationId.value[x]",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "path": "Extension.extension.value[x]",
      "type": [ {
        "code": "Identifier"
      } ],
      "short": "Unique identifier for molecular fragment modification based on the ISO 11238 Substance ID",
      "definition": "Unique identifier for molecular fragment modification based on the ISO 11238 Substance ID."
    }, {
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.nTerminalModification` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.nTerminalModification` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.nTerminalModification` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.nTerminalModification` (new:string)",
      "short": "R4: The name of the fragment modified at the N-terminal of the SubstanceProtein shall be specified (new)",
      "sliceName": "nTerminalModification",
      "max": "1",
      "id": "Extension.extension:nTerminalModification",
      "comment": "Element `SubstanceProtein.subunit.nTerminalModification` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.nTerminalModification` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.nTerminalModification` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Extension.extension"
      }
    }, {
      "id": "Extension.extension:nTerminalModification.url",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "path": "Extension.extension.url",
      "fixedUri": "nTerminalModification"
    }, {
      "id": "Extension.extension:nTerminalModification.value[x]",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "path": "Extension.extension.value[x]",
      "type": [ {
        "code": "string"
      } ],
      "short": "The name of the fragment modified at the N-terminal of the SubstanceProtein shall be specified",
      "definition": "The name of the fragment modified at the N-terminal of the SubstanceProtein shall be specified."
    }, {
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.cTerminalModificationId` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.cTerminalModificationId` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.cTerminalModificationId` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.cTerminalModificationId` (new:Identifier)",
      "short": "R4: Unique identifier for molecular fragment modification based on the ISO 11238 Substance ID (new)",
      "sliceName": "cTerminalModificationId",
      "max": "1",
      "id": "Extension.extension:cTerminalModificationId",
      "comment": "Element `SubstanceProtein.subunit.cTerminalModificationId` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.cTerminalModificationId` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.cTerminalModificationId` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Extension.extension"
      }
    }, {
      "id": "Extension.extension:cTerminalModificationId.url",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "path": "Extension.extension.url",
      "fixedUri": "cTerminalModificationId"
    }, {
      "id": "Extension.extension:cTerminalModificationId.value[x]",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "path": "Extension.extension.value[x]",
      "type": [ {
        "code": "Identifier"
      } ],
      "short": "Unique identifier for molecular fragment modification based on the ISO 11238 Substance ID",
      "definition": "Unique identifier for molecular fragment modification based on the ISO 11238 Substance ID."
    }, {
      "path": "Extension.extension",
      "requirements": "Element `SubstanceProtein.subunit.cTerminalModification` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.cTerminalModification` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.cTerminalModification` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "min": 0,
      "definition": "R4: `SubstanceProtein.subunit.cTerminalModification` (new:string)",
      "short": "R4: The modification at the C-terminal shall be specified (new)",
      "sliceName": "cTerminalModification",
      "max": "1",
      "id": "Extension.extension:cTerminalModification",
      "comment": "Element `SubstanceProtein.subunit.cTerminalModification` is part of an existing definition because parent element `SubstanceProtein.subunit` requires a cross-version extension.\nElement `SubstanceProtein.subunit.cTerminalModification` is not mapped to FHIR R5, since FHIR R4 `SubstanceProtein` is not mapped.\nElement `SubstanceProtein.subunit.cTerminalModification` has no mapping targets in FHIR R5. Typically, this is because the element has been added (is a new element).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Extension.extension"
      }
    }, {
      "id": "Extension.extension:cTerminalModification.url",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "path": "Extension.extension.url",
      "fixedUri": "cTerminalModification"
    }, {
      "id": "Extension.extension:cTerminalModification.value[x]",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "path": "Extension.extension.value[x]",
      "type": [ {
        "code": "string"
      } ],
      "short": "The modification at the C-terminal shall be specified",
      "definition": "The modification at the C-terminal shall be specified."
    }, {
      "id": "Extension.url",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "path": "Extension.url",
      "fixedUri": "http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceProtein.subunit"
    }, {
      "id": "Extension.value[x]",
      "max": "0",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      },
      "path": "Extension.value[x]"
    } ]
  },
  "contact": [ {
    "name": "FHIR Infrastructure",
    "telecom": [ {
      "value": "http://www.hl7.org/Special/committees/fiwg",
      "system": "url"
    } ]
  } ],
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension|5.0.0"
}