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Narrative

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Generated Narrative: StructureDefinition ext-R3-QR.ite.ans.value

Name	Flags	Card.	Type	Description & Constraints
Extension		0..1	Extension(4.3.0)	STU3: value additional types
url		1..1	uri	"http://hl7.org/fhir/3.0/StructureDefinition/extension-QuestionnaireResponse.item.answer.value"
value[x]		0..1	Attachment	Single-valued answer to the question
Documentation for this format

Source1

{
  "resourceType": "StructureDefinition",
  "id": "ext-R3-QR.ite.ans.value",
  "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-r3.r4b"
        },
        {
          "url": "version",
          "valueString": "0.1.0"
        },
        {
          "url": "uri",
          "valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r3.r4b"
        }
      ],
      "url": "http://hl7.org/fhir/StructureDefinition/package-source"
    },
    {
      "extension": [
        {
          "url": "startFhirVersion",
          "valueCode": "4.3"
        },
        {
          "url": "endFhirVersion",
          "valueCode": "4.3"
        }
      ],
      "url": "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    },
    {
      "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-r3.r4b"
          }
        ]
      }
    },
    {
      "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-r3.r4b"
          }
        ]
      }
    }
  ],
  "url": "http://hl7.org/fhir/3.0/StructureDefinition/extension-QuestionnaireResponse.item.answer.value",
  "version": "0.1.0",
  "name": "ExtensionQuestionnaireResponse_Item_Answer_Value",
  "title": "STU3: value additional types",
  "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": "STU3: `QuestionnaireResponse.item.answer.value[x]` additional types (Attachment)",
  "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 `QuestionnaireResponse.item.answer.value[x]` as defined in FHIR STU3\r\nin FHIR R4B.\r\n\r\nThe source element is defined as:\r\n`QuestionnaireResponse.item.answer.value[x]` 0..1 `Attachment, boolean, Coding, date, dateTime, decimal, integer, Quantity, Reference(http://hl7.org/fhir/StructureDefinition/Resource), string, time, uri`\r\n\r\nAcross FHIR versions, the element set has been mapped as:\r\n*  STU3: `QuestionnaireResponse.item.answer.value[x]` 0..1 `Attachment, boolean, Coding, date, dateTime, decimal, integer, Quantity, Reference(http://hl7.org/fhir/StructureDefinition/Resource), string, time, uri`\n*  R4: `QuestionnaireResponse.item.answer.value[x]` 0..1 `Attachment, boolean, Coding, date, dateTime, decimal, integer, Quantity, Reference(http://hl7.org/fhir/StructureDefinition/Resource), string, time, uri`\n*  R4B: `QuestionnaireResponse.item.answer.value[x]` 0..1 `Attachment, boolean, Coding, date, dateTime, decimal, integer, Quantity, Reference(http://hl7.org/fhir/StructureDefinition/Resource), string, time, uri`\r\n\r\nFollowing are the generation technical comments:\r\nElement `QuestionnaireResponse.item.answer.value[x]` is mapped to FHIR R4B element `QuestionnaireResponse.item.answer.value[x]` as `RelatedTo`.\nThe mappings for `QuestionnaireResponse.item.answer.value[x]` do not cover the following types: Attachment.\nThe target context `QuestionnaireResponse.item.answer.value[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `QuestionnaireResponse.item.answer`.\nThe standard extension `alternate-reference` has been mapped as PART of the representation of FHIR STU3 element `QuestionnaireResponse.item.answer.value[x]` with unmapped reference targets: Resource.\nSource element `QuestionnaireResponse.item.answer.value[x]` has unmapped reference types. While the target element `QuestionnaireResponse.item.answer.value[x]` is a choice type and does not allow extensions, the `alternate-reference` extension can be applied to Reference values within it.",
  "fhirVersion": "4.3.0",
  "mapping": [
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "QuestionnaireResponse.item.answer"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension|4.3.0",
  "derivation": "constraint",
  "snapshot": {
    "extension": [
      {
        "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
        "valueString": "4.3.0"
      }
    ],
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "STU3: value additional types",
        "definition": "STU3: `QuestionnaireResponse.item.answer.value[x]` additional types (Attachment)",
        "comment": "Element `QuestionnaireResponse.item.answer.value[x]` is mapped to FHIR R4B element `QuestionnaireResponse.item.answer.value[x]` as `RelatedTo`.\nThe mappings for `QuestionnaireResponse.item.answer.value[x]` do not cover the following types: Attachment.\nThe target context `QuestionnaireResponse.item.answer.value[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `QuestionnaireResponse.item.answer`.\nThe standard extension `alternate-reference` has been mapped as PART of the representation of FHIR STU3 element `QuestionnaireResponse.item.answer.value[x]` with unmapped reference targets: Resource.\nSource element `QuestionnaireResponse.item.answer.value[x]` has unmapped reference types. While the target element `QuestionnaireResponse.item.answer.value[x]` is a choice type and does not allow extensions, the `alternate-reference` extension can be applied to Reference values within it.\nMore complex structures (Attachment, Resource and Quantity) will typically be limited to electronic forms that can expose an appropriate user interface to capture the components and enforce the constraints of a complex data type.  Additional complex types can be introduced through extensions.",
        "min": 0,
        "max": "1",
        "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 unless an empty Parameters resource",
            "expression": "hasValue() or (children().count() > id.count()) or $this is Parameters",
            "xpath": "@value|f:*|h:div|self::f:Parameters",
            "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
          },
          {
            "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|4.3.0"
          }
        ],
        "isModifier": false
      },
      {
        "id": "Extension.id",
        "path": "Extension.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "Unique id for inter-element referencing",
        "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": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "id"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "isModifier": false,
        "isSummary": false,
        "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",
          "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. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
        "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"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
          },
          {
            "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|4.3.0"
          }
        ],
        "isModifier": false,
        "isSummary": false,
        "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": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "uri"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "fixedUri": "http://hl7.org/fhir/3.0/StructureDefinition/extension-QuestionnaireResponse.item.answer.value",
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "short": "Single-valued answer to the question",
        "definition": "The answer (or one of the answers) provided by the respondent to the question.",
        "comment": "More complex structures (Attachment, Resource and Quantity) will typically be limited to electronic forms that can expose an appropriate user interface to capture the components and enforce the constraints of a complex data type.  Additional complex types can be introduced through extensions.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Attachment"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
          }
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      }
    ]
  },
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "STU3: value additional types",
        "definition": "STU3: `QuestionnaireResponse.item.answer.value[x]` additional types (Attachment)",
        "comment": "Element `QuestionnaireResponse.item.answer.value[x]` is mapped to FHIR R4B element `QuestionnaireResponse.item.answer.value[x]` as `RelatedTo`.\nThe mappings for `QuestionnaireResponse.item.answer.value[x]` do not cover the following types: Attachment.\nThe target context `QuestionnaireResponse.item.answer.value[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `QuestionnaireResponse.item.answer`.\nThe standard extension `alternate-reference` has been mapped as PART of the representation of FHIR STU3 element `QuestionnaireResponse.item.answer.value[x]` with unmapped reference targets: Resource.\nSource element `QuestionnaireResponse.item.answer.value[x]` has unmapped reference types. While the target element `QuestionnaireResponse.item.answer.value[x]` is a choice type and does not allow extensions, the `alternate-reference` extension can be applied to Reference values within it.\nMore complex structures (Attachment, Resource and Quantity) will typically be limited to electronic forms that can expose an appropriate user interface to capture the components and enforce the constraints of a complex data type.  Additional complex types can be introduced through extensions.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension",
          "min": 0,
          "max": "*"
        },
        "isModifier": false
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "http://hl7.org/fhir/3.0/StructureDefinition/extension-QuestionnaireResponse.item.answer.value"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "short": "Single-valued answer to the question",
        "definition": "The answer (or one of the answers) provided by the respondent to the question.",
        "comment": "More complex structures (Attachment, Resource and Quantity) will typically be limited to electronic forms that can expose an appropriate user interface to capture the components and enforce the constraints of a complex data type.  Additional complex types can be introduced through extensions.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Attachment"
          }
        ]
      }
    ]
  }
}