{
  "resourceType": "StructureDefinition",
  "id": "497bb111-629f-45c0-b216-0e8f3a77db73",
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\">to do</div>"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode": "normative"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
      "valueCode": "4.0.0"
    }
  ],
  "url": "http://hl7.org/fhir/StructureDefinition/base64Binary",
  "version": "4.0.1",
  "name": "base64Binary",
  "status": "active",
  "date": "2019-10-31T22:29:23+00:00",
  "publisher": "HL7 FHIR Standard",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://hl7.org/fhir"
        }
      ]
    }
  ],
  "description": "Base StructureDefinition for base64Binary Type: A stream of bytes",
  "fhirVersion": "4.0.1",
  "kind": "primitive-type",
  "abstract": false,
  "type": "base64Binary",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Element",
  "derivation": "specialization",
  "differential": {
    "element": [
      {
        "id": "base64Binary",
        "path": "base64Binary",
        "short": "Primitive Type base64Binary",
        "definition": "A stream of bytes",
        "comment": "A stream of bytes, base64 encoded",
        "min": 0,
        "max": "*"
      },
      {
        "id": "base64Binary.value",
        "path": "base64Binary.value",
        "representation": [
          "xmlAttr"
        ],
        "short": "Primitive value for base64Binary",
        "definition": "Primitive value for base64Binary",
        "min": 0,
        "max": "1",
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "base64Binary"
              },
              {
                "url": "http://hl7.org/fhir/StructureDefinition/regex",
                "valueString": "(\\s*([0-9a-zA-Z\\+/=]){4}\\s*)+"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ]
      }
    ]
  }
}