Different answer types for FHIR QuestionnaireResponse

questionnaireResponse-answer-types.js

// QuestionnaireResponse containing all possible answer types
{
  "language": "fi",
  "questionnaire": "SomeURI",
  "resourceType": "QuestionnaireResponse",
  "status": "completed",
  "item": [
    {
      "answer": [{
        // e.g. age in whole years
        "valueInteger": 45
      }],
      "linkId": "3"
    },
    {
      "answer": [{
        // e.g. fever / no fever
        "valueBoolean": false
      }],
      "linkId": "584"
    },
    {
      "answer": [{
        // e.g. fever degrees
        "valueDecimal": 37.2
      }],
      "linkId": "35"
    },
    {
      "answer": [{
        "valueString": "String answers are ignored by EBMeDS at the moment"
      }],
      "linkId": "143"
    },
    {
      "answer": [{
        // e.g. when symptoms started
        // valueDateTime and valueTime are not supported
        "valueDate": "2017-04-13"
      }],
      "linkId": "142"
    },
    {
      "answer": [{
        // how to encode a radio button answer
        "valueCoding": {
           "code": "radio",
           "system": "VKT-multiple-choice"
         },
         "item": [
           // only one item allowed for radio buttons
           {
             "linkId": "165"
           }
         ]
       }],
       "linkId": "141"
     },
     {
       "answer": [{
         // how to encode a checkbox answer
         "valueCoding": {
           "code": "checkbox",
           "system": "VKT-multiple-choice"
         },
         "item": [
           // multiple items allowed for checkbox answer
           {
             "linkId": "170"
           },
           {
             "linkId": "171"
           }
         ]
       }],
       "linkId": "145"
     }
  ]
}