{
  "resourceType": "StructureDefinition",
  "id": "89787070-78af-4481-9292-6a9a0a7b88a4",
  "meta": {
    "versionId": "1",
    "lastUpdated": "2021-08-25T19:14:36.992+00:00",
    "tag": [
      {
        "system": "https://smilecdr.com/fhir/NamingSystem/tags",
        "code": "validation_passed",
        "display": "Validation Passed"
      }
    ]
  },
  "url": "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-initialExpression",
  "version": "2.7.0",
  "name": "InitialExpressionExtension",
  "title": "initial.exists().not()",
  "status": "draft",
  "experimental": false,
  "date": "2014-04-20T14:00:00+00:00",
  "publisher": "Health Level Seven International (Orders and Observations - Structured Data Capture)",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://wiki.siframework.org/Structured+Data+Capture+Initiative"
        }
      ]
    }
  ],
  "description": "Initial value for a question answer as determined by an evaluated expression.",
  "fhirVersion": "4.0.0",
  "mapping": [
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "Questionnaire.item"
    },
    {
      "type": "element",
      "expression": "Questionnaire.item.item"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "Expression-determined initial value",
        "definition": "Initial value for a question answer as determined by an evaluated expression.",
        "comment": "Initial value is only calculated at the time the QuestionnaireResponse is first generated.",
        "min": 0,
        "max": "1",
        "isModifier": false
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-initialExpression"
      },
      {
        "id": "Extension.valueExpression",
        "path": "Extension.valueExpression",
        "type": [
          {
            "code": "Expression"
          }
        ]
      }
    ]
  }
}