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Packagehl7.fhir.uv.xver-r4.r3
Resource TypeStructureDefinition
IdStructureDefinition-ext-R4-SubstanceSpecification.moiety.json
FHIR VersionR3
Sourcehttp://hl7.org/fhir/uv/xver-r4.r3/0.1.0/StructureDefinition-ext-R4-SubstanceSpecification.moiety.html
URLhttp://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.moiety
Version0.1.0
Statusactive
Date2026-03-17T21:02:03.8104715+00:00
NameExtensionSubstanceSpecification_Moiety
TitleR4: Moiety, for structural modifications (new)
Realmuv
Authorityhl7
DescriptionR4: `SubstanceSpecification.moiety` (new:BackboneElement)
PurposeThis extension is part of the cross-version definitions generated to enable use of the element `SubstanceSpecification.moiety` as defined in FHIR R4 in FHIR STU3. The source element is defined as: `SubstanceSpecification.moiety` 0..* `BackboneElement` Following are the generation technical comments: Element `SubstanceSpecification.moiety` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped. Element `SubstanceSpecification.moiety` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).
TypeExtension
Kindcomplex-type

Resources that use this resource

ConceptMap
hl7.fhir.uv.xver-r4.r3#0.1.0R4-SubstanceSpecification-element-map-to-R3Cross-version mapping for FHIR R4 SubstanceSpecification to FHIR STU3 Basic
StructureDefinition
hl7.fhir.uv.xver-r4.r3#0.1.0profile-SubstanceSpecificationCross-version Profile for R4.SubstanceSpecification for use in FHIR STU3

Resources that this resource uses

No resources found


Examples of Use for Extension

No extension usage examples found


Narrative

Note: links and images are rebased to the (stated) source

Generated Narrative: StructureDefinition ext-R4-SubstanceSpecification.moiety

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..*ExtensionR4: Moiety, for structural modifications (new)
... Slices for extension 0..*ExtensionExtension
Slice: Unordered, Open by value:url
.... extension:role 0..1ExtensionR4: Role that the moiety is playing (new)
..... url 1..1uri"role"
..... value[x] 0..1CodeableConceptRole that the moiety is playing
.... extension:identifier 0..1ExtensionR4: Identifier by which this moiety substance is known (new)
..... url 1..1uri"identifier"
..... value[x] 0..1IdentifierIdentifier by which this moiety substance is known
.... extension:name 0..1ExtensionR4: Textual name for this moiety substance (new)
..... url 1..1uri"name"
..... value[x] 0..1stringTextual name for this moiety substance
.... extension:stereochemistry 0..1ExtensionR4: Stereochemistry type (new)
..... url 1..1uri"stereochemistry"
..... value[x] 0..1CodeableConceptStereochemistry type
.... extension:opticalActivity 0..1ExtensionR4: Optical activity type (new)
..... url 1..1uri"opticalActivity"
..... value[x] 0..1CodeableConceptOptical activity type
.... extension:molecularFormula 0..1ExtensionR4: Molecular formula (new)
..... url 1..1uri"molecularFormula"
..... value[x] 0..1stringMolecular formula
.... extension:amount 0..1ExtensionR4: Quantitative value for this moiety (new)
..... url 1..1uri"amount"
..... value[x] 0..1Quantitative value for this moiety
...... valueQuantityQuantity
...... valueStringstring
... url 1..1uri"http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.moiety"
... value[x] 0..0Value of extension

doco Documentation for this format

Source1

{
  "resourceType": "StructureDefinition",
  "id": "ext-R4-SubstanceSpecification.moiety",
  "text": {
    "status": "extensions",
    "div": "<!-- snip (see above) -->"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "fhir"
    },
    {
      "extension": [
        {
          "url": "packageId",
          "valueId": "hl7.fhir.uv.xver-r4.r3"
        },
        {
          "url": "version",
          "valueString": "0.1.0"
        },
        {
          "url": "uri",
          "valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r3"
        }
      ],
      "url": "http://hl7.org/fhir/StructureDefinition/package-source"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 0,
      "_valueInteger": {
        "extension": [
          {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r3"
          }
        ]
      }
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode": "trial-use",
      "_valueCode": {
        "extension": [
          {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r3"
          }
        ]
      }
    }
  ],
  "url": "http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.moiety",
  "version": "0.1.0",
  "name": "ExtensionSubstanceSpecification_Moiety",
  "title": "R4: Moiety, for structural modifications (new)",
  "status": "active",
  "experimental": false,
  "date": "2026-03-17T21:02:03.8104715+00:00",
  "publisher": "FHIR Infrastructure",
  "contact": [
    {
      "name": "FHIR Infrastructure",
      "telecom": [
        {
          "system": "url",
          "value": "http://www.hl7.org/Special/committees/fiwg"
        }
      ]
    }
  ],
  "description": "R4: `SubstanceSpecification.moiety` (new:BackboneElement)",
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code": "001",
          "display": "World"
        }
      ]
    }
  ],
  "purpose": "This extension is part of the cross-version definitions generated to enable use of the\r\nelement `SubstanceSpecification.moiety` as defined in FHIR R4\r\nin FHIR STU3.\r\n\r\nThe source element is defined as:\r\n`SubstanceSpecification.moiety` 0..* `BackboneElement`\r\n\r\nFollowing are the generation technical comments:\r\nElement `SubstanceSpecification.moiety` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
  "fhirVersion": "3.0.2",
  "mapping": [
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "contextType": "resource",
  "context": [
    "Basic"
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "snapshot": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "R4: Moiety, for structural modifications (new)",
        "definition": "R4: `SubstanceSpecification.moiety` (new:BackboneElement)",
        "comment": "Element `SubstanceSpecification.moiety` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Extension",
          "min": 0,
          "max": "*"
        },
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() | (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": false
      },
      {
        "id": "Extension.id",
        "path": "Extension.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "xml:id (or equivalent in JSON)",
        "definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "ordered": false,
          "rules": "open"
        },
        "short": "Extension",
        "definition": "An Extension",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ]
      },
      {
        "id": "Extension.extension:role",
        "path": "Extension.extension",
        "sliceName": "role",
        "short": "R4: Role that the moiety is playing (new)",
        "definition": "R4: `SubstanceSpecification.moiety.role` (new:CodeableConcept)",
        "comment": "Element `SubstanceSpecification.moiety.role` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.role` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.role` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubstanceSpecification.moiety.role` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.role` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.role` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ]
      },
      {
        "id": "Extension.extension:role.id",
        "path": "Extension.extension.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "xml:id (or equivalent in JSON)",
        "definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension:role.extension",
        "path": "Extension.extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional Content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the 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.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension:role.url",
        "path": "Extension.extension.url",
        "representation": [
          "xmlAttr"
        ],
        "short": "identifies the meaning of the extension",
        "definition": "Source of the definition for the extension code - a logical name or a 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.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "role",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:role.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Role that the moiety is playing",
        "definition": "Role that the moiety is playing.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:identifier",
        "path": "Extension.extension",
        "sliceName": "identifier",
        "short": "R4: Identifier by which this moiety substance is known (new)",
        "definition": "R4: `SubstanceSpecification.moiety.identifier` (new:Identifier)",
        "comment": "Element `SubstanceSpecification.moiety.identifier` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.identifier` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.identifier` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubstanceSpecification.moiety.identifier` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.identifier` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.identifier` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ]
      },
      {
        "id": "Extension.extension:identifier.id",
        "path": "Extension.extension.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "xml:id (or equivalent in JSON)",
        "definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension:identifier.extension",
        "path": "Extension.extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional Content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the 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.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension:identifier.url",
        "path": "Extension.extension.url",
        "representation": [
          "xmlAttr"
        ],
        "short": "identifies the meaning of the extension",
        "definition": "Source of the definition for the extension code - a logical name or a 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.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "identifier",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:identifier.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Identifier by which this moiety substance is known",
        "definition": "Identifier by which this moiety substance is known.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Identifier"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:name",
        "path": "Extension.extension",
        "sliceName": "name",
        "short": "R4: Textual name for this moiety substance (new)",
        "definition": "R4: `SubstanceSpecification.moiety.name` (new:string)",
        "comment": "Element `SubstanceSpecification.moiety.name` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.name` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.name` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubstanceSpecification.moiety.name` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.name` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.name` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ]
      },
      {
        "id": "Extension.extension:name.id",
        "path": "Extension.extension.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "xml:id (or equivalent in JSON)",
        "definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension:name.extension",
        "path": "Extension.extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional Content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the 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.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension:name.url",
        "path": "Extension.extension.url",
        "representation": [
          "xmlAttr"
        ],
        "short": "identifies the meaning of the extension",
        "definition": "Source of the definition for the extension code - a logical name or a 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.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "name",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:name.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Textual name for this moiety substance",
        "definition": "Textual name for this moiety substance.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:stereochemistry",
        "path": "Extension.extension",
        "sliceName": "stereochemistry",
        "short": "R4: Stereochemistry type (new)",
        "definition": "R4: `SubstanceSpecification.moiety.stereochemistry` (new:CodeableConcept)",
        "comment": "Element `SubstanceSpecification.moiety.stereochemistry` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.stereochemistry` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.stereochemistry` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubstanceSpecification.moiety.stereochemistry` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.stereochemistry` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.stereochemistry` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ]
      },
      {
        "id": "Extension.extension:stereochemistry.id",
        "path": "Extension.extension.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "xml:id (or equivalent in JSON)",
        "definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension:stereochemistry.extension",
        "path": "Extension.extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional Content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the 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.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension:stereochemistry.url",
        "path": "Extension.extension.url",
        "representation": [
          "xmlAttr"
        ],
        "short": "identifies the meaning of the extension",
        "definition": "Source of the definition for the extension code - a logical name or a 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.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "stereochemistry",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:stereochemistry.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Stereochemistry type",
        "definition": "Stereochemistry type.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:opticalActivity",
        "path": "Extension.extension",
        "sliceName": "opticalActivity",
        "short": "R4: Optical activity type (new)",
        "definition": "R4: `SubstanceSpecification.moiety.opticalActivity` (new:CodeableConcept)",
        "comment": "Element `SubstanceSpecification.moiety.opticalActivity` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.opticalActivity` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.opticalActivity` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubstanceSpecification.moiety.opticalActivity` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.opticalActivity` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.opticalActivity` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ]
      },
      {
        "id": "Extension.extension:opticalActivity.id",
        "path": "Extension.extension.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "xml:id (or equivalent in JSON)",
        "definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension:opticalActivity.extension",
        "path": "Extension.extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional Content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the 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.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension:opticalActivity.url",
        "path": "Extension.extension.url",
        "representation": [
          "xmlAttr"
        ],
        "short": "identifies the meaning of the extension",
        "definition": "Source of the definition for the extension code - a logical name or a 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.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "opticalActivity",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:opticalActivity.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Optical activity type",
        "definition": "Optical activity type.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:molecularFormula",
        "path": "Extension.extension",
        "sliceName": "molecularFormula",
        "short": "R4: Molecular formula (new)",
        "definition": "R4: `SubstanceSpecification.moiety.molecularFormula` (new:string)",
        "comment": "Element `SubstanceSpecification.moiety.molecularFormula` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.molecularFormula` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.molecularFormula` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubstanceSpecification.moiety.molecularFormula` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.molecularFormula` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.molecularFormula` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ]
      },
      {
        "id": "Extension.extension:molecularFormula.id",
        "path": "Extension.extension.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "xml:id (or equivalent in JSON)",
        "definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension:molecularFormula.extension",
        "path": "Extension.extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional Content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the 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.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension:molecularFormula.url",
        "path": "Extension.extension.url",
        "representation": [
          "xmlAttr"
        ],
        "short": "identifies the meaning of the extension",
        "definition": "Source of the definition for the extension code - a logical name or a 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.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "molecularFormula",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:molecularFormula.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Molecular formula",
        "definition": "Molecular formula.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:amount",
        "path": "Extension.extension",
        "sliceName": "amount",
        "short": "R4: Quantitative value for this moiety (new)",
        "definition": "R4: `SubstanceSpecification.moiety.amount[x]` (new:Quantity, string)",
        "comment": "Element `SubstanceSpecification.moiety.amount[x]` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.amount[x]` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.amount[x]` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubstanceSpecification.moiety.amount[x]` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.amount[x]` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.amount[x]` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ]
      },
      {
        "id": "Extension.extension:amount.id",
        "path": "Extension.extension.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "xml:id (or equivalent in JSON)",
        "definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension:amount.extension",
        "path": "Extension.extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional Content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the 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.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension:amount.url",
        "path": "Extension.extension.url",
        "representation": [
          "xmlAttr"
        ],
        "short": "identifies the meaning of the extension",
        "definition": "Source of the definition for the extension code - a logical name or a 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.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "amount",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:amount.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Quantitative value for this moiety",
        "definition": "Quantitative value for this moiety.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Quantity"
          },
          {
            "code": "string"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "representation": [
          "xmlAttr"
        ],
        "short": "identifies the meaning of the extension",
        "definition": "Source of the definition for the extension code - a logical name or a 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.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.moiety",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "short": "Value of extension",
        "definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
        "min": 0,
        "max": "0",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "base64Binary"
          },
          {
            "code": "boolean"
          },
          {
            "code": "code"
          },
          {
            "code": "date"
          },
          {
            "code": "dateTime"
          },
          {
            "code": "decimal"
          },
          {
            "code": "id"
          },
          {
            "code": "instant"
          },
          {
            "code": "integer"
          },
          {
            "code": "markdown"
          },
          {
            "code": "oid"
          },
          {
            "code": "positiveInt"
          },
          {
            "code": "string"
          },
          {
            "code": "time"
          },
          {
            "code": "unsignedInt"
          },
          {
            "code": "uri"
          },
          {
            "code": "Address"
          },
          {
            "code": "Age"
          },
          {
            "code": "Annotation"
          },
          {
            "code": "Attachment"
          },
          {
            "code": "CodeableConcept"
          },
          {
            "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": "Reference"
          },
          {
            "code": "SampledData"
          },
          {
            "code": "Signature"
          },
          {
            "code": "Timing"
          },
          {
            "code": "Meta"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      }
    ]
  },
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "R4: Moiety, for structural modifications (new)",
        "definition": "R4: `SubstanceSpecification.moiety` (new:BackboneElement)",
        "comment": "Element `SubstanceSpecification.moiety` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Extension",
          "min": 0,
          "max": "*"
        },
        "isModifier": false
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "ordered": false,
          "rules": "open"
        },
        "min": 0,
        "max": "*",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Extension.extension:role",
        "path": "Extension.extension",
        "sliceName": "role",
        "short": "R4: Role that the moiety is playing (new)",
        "definition": "R4: `SubstanceSpecification.moiety.role` (new:CodeableConcept)",
        "comment": "Element `SubstanceSpecification.moiety.role` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.role` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.role` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubstanceSpecification.moiety.role` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.role` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.role` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Extension.extension:role.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "role"
      },
      {
        "id": "Extension.extension:role.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Role that the moiety is playing",
        "definition": "Role that the moiety is playing.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "Extension.extension:identifier",
        "path": "Extension.extension",
        "sliceName": "identifier",
        "short": "R4: Identifier by which this moiety substance is known (new)",
        "definition": "R4: `SubstanceSpecification.moiety.identifier` (new:Identifier)",
        "comment": "Element `SubstanceSpecification.moiety.identifier` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.identifier` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.identifier` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubstanceSpecification.moiety.identifier` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.identifier` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.identifier` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Extension.extension:identifier.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "identifier"
      },
      {
        "id": "Extension.extension:identifier.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Identifier by which this moiety substance is known",
        "definition": "Identifier by which this moiety substance is known.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Identifier"
          }
        ]
      },
      {
        "id": "Extension.extension:name",
        "path": "Extension.extension",
        "sliceName": "name",
        "short": "R4: Textual name for this moiety substance (new)",
        "definition": "R4: `SubstanceSpecification.moiety.name` (new:string)",
        "comment": "Element `SubstanceSpecification.moiety.name` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.name` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.name` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubstanceSpecification.moiety.name` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.name` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.name` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Extension.extension:name.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "name"
      },
      {
        "id": "Extension.extension:name.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Textual name for this moiety substance",
        "definition": "Textual name for this moiety substance.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "Extension.extension:stereochemistry",
        "path": "Extension.extension",
        "sliceName": "stereochemistry",
        "short": "R4: Stereochemistry type (new)",
        "definition": "R4: `SubstanceSpecification.moiety.stereochemistry` (new:CodeableConcept)",
        "comment": "Element `SubstanceSpecification.moiety.stereochemistry` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.stereochemistry` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.stereochemistry` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubstanceSpecification.moiety.stereochemistry` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.stereochemistry` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.stereochemistry` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Extension.extension:stereochemistry.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "stereochemistry"
      },
      {
        "id": "Extension.extension:stereochemistry.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Stereochemistry type",
        "definition": "Stereochemistry type.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "Extension.extension:opticalActivity",
        "path": "Extension.extension",
        "sliceName": "opticalActivity",
        "short": "R4: Optical activity type (new)",
        "definition": "R4: `SubstanceSpecification.moiety.opticalActivity` (new:CodeableConcept)",
        "comment": "Element `SubstanceSpecification.moiety.opticalActivity` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.opticalActivity` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.opticalActivity` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubstanceSpecification.moiety.opticalActivity` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.opticalActivity` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.opticalActivity` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Extension.extension:opticalActivity.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "opticalActivity"
      },
      {
        "id": "Extension.extension:opticalActivity.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Optical activity type",
        "definition": "Optical activity type.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "Extension.extension:molecularFormula",
        "path": "Extension.extension",
        "sliceName": "molecularFormula",
        "short": "R4: Molecular formula (new)",
        "definition": "R4: `SubstanceSpecification.moiety.molecularFormula` (new:string)",
        "comment": "Element `SubstanceSpecification.moiety.molecularFormula` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.molecularFormula` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.molecularFormula` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubstanceSpecification.moiety.molecularFormula` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.molecularFormula` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.molecularFormula` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Extension.extension:molecularFormula.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "molecularFormula"
      },
      {
        "id": "Extension.extension:molecularFormula.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Molecular formula",
        "definition": "Molecular formula.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "Extension.extension:amount",
        "path": "Extension.extension",
        "sliceName": "amount",
        "short": "R4: Quantitative value for this moiety (new)",
        "definition": "R4: `SubstanceSpecification.moiety.amount[x]` (new:Quantity, string)",
        "comment": "Element `SubstanceSpecification.moiety.amount[x]` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.amount[x]` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.amount[x]` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubstanceSpecification.moiety.amount[x]` is part of an existing definition because parent element `SubstanceSpecification.moiety` requires a cross-version extension.\nElement `SubstanceSpecification.moiety.amount[x]` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.moiety.amount[x]` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Extension.extension:amount.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "amount"
      },
      {
        "id": "Extension.extension:amount.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Quantitative value for this moiety",
        "definition": "Quantitative value for this moiety.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Quantity"
          },
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.moiety"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "min": 0,
        "max": "0",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        }
      }
    ]
  }
}