{
  "resourceType": "StructureDefinition",
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "fhir"
    }
  ],
  "url": "https://purl.org/elab/fhir/StructureDefinition/Variable",
  "name": "Variable",
  "status": "draft",
  "date": "2017-06-16T15:37:26.09686+00:00",
  "fhirVersion": "3.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "Basic",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Basic",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "path": "Basic.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "rules": "open"
        }
      },
      {
        "id": "Basic.extension:name",
        "path": "Basic.extension",
        "sliceName": "Name",
        "short": "Name",
        "definition": "An identifier for the variable, must be unique over the annotation file/data source.",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": "https://purl.org/elab/fhir/StructureDefinition/Name"
          }
        ]
      },
      {
        "id": "Basic.extension:description",
        "path": "Basic.extension",
        "sliceName": "Description",
        "short": "Description",
        "definition": "The variable description or label",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": "https://purl.org/elab/fhir/StructureDefinition/Description"
          }
        ]
      },
      {
        "id": "Basic.extension:sourceDatatype",
        "path": "Basic.extension",
        "sliceName": "SouceDatatype",
        "short": "Optional Extensions Element",
        "definition": "Source datatype from a ValueSet",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": "https://purl.org/elab/fhir/StructureDefinition/SourceDatatype"
          }
        ]
      },
      {
        "id": "Basic.extension:destinationDatatype",
        "path": "Basic.extension",
        "sliceName": "DestinationDatatype",
        "short": "Optional Extensions Element",
        "definition": "Destination datatype from a ValueSet",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": "https://purl.org/elab/fhir/StructureDefinition/DestinationDatatype"
          }
        ]
      },
      {
        "id": "Basic.extension:unit",
        "path": "Basic.extension",
        "sliceName": "Unit",
        "short": "Unit",
        "definition": "Unit from UCUM standard.",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": "https://purl.org/elab/fhir/StructureDefinition/Unit"
          }
        ]
      },
      {
        "id": "Basic.extension:coding",
        "path": "Basic.extension",
        "sliceName": "coding",
        "short": "Coding",
        "definition": "Coding",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "Extension",
            "profile": "https://purl.org/elab/fhir/StructureDefinition/CodingRef"
          }
        ]
      },
      {
        "id": "Basic.extension:format",
        "path": "Basic.extension",
        "sliceName": "Format",
        "short": "Format",
        "definition": "Format",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": "https://purl.org/elab/fhir/StructureDefinition/Format"
          }
        ]
      },
      {
        "id": "Basic.extension:language",
        "path": "Basic.extension",
        "sliceName": "Language",
        "short": "Language",
        "definition": "Language",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "Extension",
            "profile": "https://purl.org/elab/fhir/StructureDefinition/Language"
          }
        ]
      },
      {
        "id": "Basic.subject",
        "path": "Basic.subject",
        "max": "0"
      },
      {
        "id": "Basic.extension:tag",
        "path": "Basic.extension",
        "sliceName": "Tag",
        "short": "Tag",
        "definition": "Tag for search purposes.",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "Extension",
            "profile": "https://purl.org/elab/fhir/StructureDefinition/Tag"
          }
        ]
      },
      {
        "id": "Basic.extension:annotation",
        "path": "Basic.extension",
        "sliceName": "annotation",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": "https://purl.org/elab/fhir/StructureDefinition/AnnotationRef"
          }
        ]
      },
      {
        "id": "Basic.extension:conceptMaps",
        "path": "Basic.extension",
        "sliceName": "conceptMap",
        "short": "Concept Map",
        "definition": "Mappings from source codes (in the data) to external terminology systems.",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": "https://purl.org/elab/fhir/StructureDefinition/ConceptMapRef",
            "aggregation": [
              "referenced"
            ]
          }
        ]
      }
    ]
  }
}