{
  "resourceType": "StructureDefinition",
  "id": "questionnaire-choiceOrientation",
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "fhir"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 1
    }
  ],
  "url": "http://hl7.org/fhir/StructureDefinition/questionnaire-choiceOrientation",
  "name": "choiceOrientation",
  "status": "draft",
  "date": "2013-07-04",
  "publisher": "HL7",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://www.hl7.org"
        }
      ]
    }
  ],
  "description": "Identifies the desired orientation when rendering a list of choices (typically radio-box or check-box lists).",
  "fhirVersion": "3.0.1",
  "mapping": [
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "contextType": "resource",
  "context": [
    "Questionnaire.item",
    "Questionnaire.item.item"
  ],
  "contextInvariant": [
    "type='choice' or type='open-choice'"
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "horizontal | vertical",
        "definition": "Identifies the desired orientation when rendering a list of choices (typically radio-box or check-box lists).",
        "comment": "Systems may choose to wrap answers rather than attempting to display them all in one row or column.  Language conventions may determine the order in which the choices are listed (left-to-right or right-to-left, etc.).",
        "min": 0,
        "max": "1"
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "max": "0"
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "http://hl7.org/fhir/StructureDefinition/questionnaire-choiceOrientation"
      },
      {
        "id": "Extension.valueCode",
        "path": "Extension.valueCode",
        "type": [
          {
            "code": "code"
          }
        ],
        "binding": {
          "extension": [
            {
              "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
              "valueString": "ChoiceListOrientation"
            }
          ],
          "strength": "required",
          "description": "Direction in which lists of question options should be displayed",
          "valueSetReference": {
            "reference": "http://hl7.org/fhir/ValueSet/choice-list-orientation"
          }
        }
      }
    ]
  }
}