{

"resourceType": "CodeSystem",
"id": "item-type",
"meta": {
  "lastUpdated": "2019-11-01T09:29:23.356+11:00"
},
"extension": [
  {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode": "fhir"
  },
  {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode": "trial-use"
  },
  {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger": 3
  }
],
"url": "http://hl7.org/fhir/item-type",
"identifier": [
  {
    "system": "urn:ietf:rfc:3986",
    "value": "urn:oid:2.16.840.1.113883.4.642.4.445"
  }
],
"version": "4.0.1",
"name": "QuestionnaireItemType",
"title": "QuestionnaireItemType",
"status": "draft",
"experimental": false,
"date": "2019-11-01T09:29:23+11:00",
"publisher": "HL7 (FHIR Project)",
"contact": [
  {
    "telecom": [
      {
        "system": "url",
        "value": "http://hl7.org/fhir"
      },
      {
        "system": "email",
        "value": "fhir@lists.hl7.org"
      }
    ]
  }
],
"description": "Distinguishes groups from questions and display text and indicates data type for questions.",
"caseSensitive": true,
"valueSet": "http://hl7.org/fhir/ValueSet/item-type",
"content": "complete",
"property": [
  {
    "code": "notSelectable",
    "uri": "http://hl7.org/fhir/concept-properties#notSelectable",
    "description": "Indicates that the code is abstract - only intended to be used as a selector for other concepts",
    "type": "boolean"
  }
],
"concept": [
  {
    "code": "group",
    "display": "Group",
    "definition": "An item with no direct answer but should have at least one child item."
  },
  {
    "code": "display",
    "display": "Display",
    "definition": "Text for display that will not capture an answer or have child items."
  },
  {
    "code": "question",
    "display": "Question",
    "definition": "An item that defines a specific answer to be captured, and which may have child items. (the answer provided in the QuestionnaireResponse should be of the defined datatype).",
    "property": [
      {
        "code": "notSelectable",
        "valueBoolean": true
      }
    ],
    "concept": [
      {
        "code": "boolean",
        "display": "Boolean",
        "definition": "Question with a yes/no answer (valueBoolean)."
      },
      {
        "code": "decimal",
        "display": "Decimal",
        "definition": "Question with is a real number answer (valueDecimal)."
      },
      {
        "code": "integer",
        "display": "Integer",
        "definition": "Question with an integer answer (valueInteger)."
      },
      {
        "code": "date",
        "display": "Date",
        "definition": "Question with a date answer (valueDate)."
      },
      {
        "code": "dateTime",
        "display": "Date Time",
        "definition": "Question with a date and time answer (valueDateTime)."
      },
      {
        "code": "time",
        "display": "Time",
        "definition": "Question with a time (hour:minute:second) answer independent of date. (valueTime)."
      },
      {
        "code": "string",
        "display": "String",
        "definition": "Question with a short (few words to short sentence) free-text entry answer (valueString)."
      },
      {
        "code": "text",
        "display": "Text",
        "definition": "Question with a long (potentially multi-paragraph) free-text entry answer (valueString)."
      },
      {
        "code": "url",
        "display": "Url",
        "definition": "Question with a URL (website, FTP site, etc.) answer (valueUri)."
      },
      {
        "code": "choice",
        "display": "Choice",
        "definition": "Question with a Coding drawn from a list of possible answers (specified in either the answerOption property, or via the valueset referenced in the answerValueSet property) as an answer (valueCoding)."
      },
      {
        "code": "open-choice",
        "display": "Open Choice",
        "definition": "Answer is a Coding drawn from a list of possible answers (as with the choice type) or a free-text entry in a string (valueCoding or valueString)."
      },
      {
        "code": "attachment",
        "display": "Attachment",
        "definition": "Question with binary content such as an image, PDF, etc. as an answer (valueAttachment)."
      },
      {
        "code": "reference",
        "display": "Reference",
        "definition": "Question with a reference to another resource (practitioner, organization, etc.) as an answer (valueReference)."
      },
      {
        "code": "quantity",
        "display": "Quantity",
        "definition": "Question with a combination of a numeric value and unit, potentially with a comparator (<, >, etc.) as an answer. (valueQuantity) There is an extension 'http://hl7.org/fhir/StructureDefinition/questionnaire-unit' that can be used to define what unit should be captured (or the unit that has a ucum conversion from the provided unit)."
      }
    ]
  }
]

}