{
  "description": null,
  "_filename": "ReleaseDate.StructureDefinition.json",
  "package_name": "implementation.guide.nhdr",
  "date": null,
  "derivation": "constraint",
  "publisher": null,
  "fhirVersion": "4.0.1",
  "name": "ReleaseDate",
  "abstract": false,
  "type": "Extension",
  "experimental": null,
  "resourceType": "StructureDefinition",
  "title": null,
  "package_version": "1.0.0",
  "status": "draft",
  "id": "f1c26e97-895c-4536-be1c-a682413b48a9",
  "kind": "complex-type",
  "url": "https://example.org/fhir/StructureDefinition/ReleaseDate",
  "context": [ {
    "type": "element",
    "expression": "Specimen.collection"
  } ],
  "version": null,
  "differential": {
    "element": [ {
      "id": "Extension.url",
      "path": "Extension.url",
      "fixedUri": "https://example.org/fhir/StructureDefinition/ReleaseDate"
    }, {
      "id": "Extension.value[x]",
      "path": "Extension.value[x]",
      "type": [ {
        "code": "dateTime"
      } ]
    } ]
  },
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension"
}