{
  "description": "Base StructureDefinition for instant Type: An instant in time - known at least to the second",
  "_filename": "StructureDefinition-instant.json",
  "package_name": "hl7.fhir.core",
  "date": "2018-08-19T21:48:56+10:00",
  "derivation": "specialization",
  "meta": {
    "lastUpdated": "2018-08-19T21:48:56.559+10:00"
  },
  "publisher": "HL7 FHIR Standard",
  "fhirVersion": "3.5.0",
  "name": "instant",
  "abstract": false,
  "type": "instant",
  "experimental": null,
  "resourceType": "StructureDefinition",
  "title": null,
  "package_version": "3.5.0",
  "extension": [ {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueString": "Normative"
  } ],
  "snapshot": {
    "element": [ {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "instant",
      "min": 0,
      "definition": "An instant in time - known at least to the second",
      "isModifier": false,
      "short": "Primitive Type instant",
      "max": "*",
      "id": "instant",
      "comment": "Note: This is intended for where precisely observed times are required, typically system logs etc., and not human-reported times - for them, see date and dateTime (which can be as precise as instant, but is not required to be) below. Time zone is always required",
      "base": {
        "max": "*",
        "min": 0,
        "path": "instant"
      },
      "isSummary": false
    }, {
      "path": "instant.id",
      "min": 0,
      "definition": "unique id for the element within a resource (for internal references)",
      "isModifier": false,
      "short": "xml:id (or equivalent in JSON)",
      "type": [ {
        "code": "string"
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "instant.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "path": "instant.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "isModifier": false,
      "short": "Additional Content defined by implementations",
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "instant.extension",
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "path": "instant.value",
      "min": 0,
      "definition": "The actual value",
      "isModifier": false,
      "short": "Primitive value for instant",
      "type": [ {
        "_code": {
          "extension": [ {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-json-type",
            "valueString": "string"
          }, {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-xml-type",
            "valueString": "xsd:dateTime"
          }, {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-rdf-type",
            "valueString": "xsd:dateTime"
          } ]
        },
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/regex",
          "valueString": "([0-9]([0-9]([0-9][1-9]|[1-9]0)|[1-9]00)|[1-9]000)-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])T([01][0-9]|2[0-3]):[0-5][0-9]:([0-5][0-9]|60)(\\.[0-9]+)?(Z|(\\+|-)((0[0-9]|1[0-3]):[0-5][0-9]|14:00))"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "instant.value",
      "base": {
        "max": "1",
        "min": 0,
        "path": "instant.value"
      },
      "isSummary": false
    } ]
  },
  "status": "draft",
  "id": "831f0d10-4416-4ddc-bb59-a761e4083e10",
  "kind": "primitive-type",
  "url": "http://hl7.org/fhir/StructureDefinition/instant",
  "version": null,
  "differential": {
    "element": [ {
      "id": "instant",
      "max": "*",
      "min": 0,
      "path": "instant",
      "short": "Primitive Type instant",
      "comment": "Note: This is intended for where precisely observed times are required, typically system logs etc., and not human-reported times - for them, see date and dateTime (which can be as precise as instant, but is not required to be) below. Time zone is always required",
      "definition": "An instant in time - known at least to the second"
    }, {
      "id": "instant.value",
      "max": "1",
      "min": 0,
      "path": "instant.value",
      "type": [ {
        "_code": {
          "extension": [ {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-json-type",
            "valueString": "string"
          }, {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-xml-type",
            "valueString": "xsd:dateTime"
          }, {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-rdf-type",
            "valueString": "xsd:dateTime"
          } ]
        },
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/regex",
          "valueString": "([0-9]([0-9]([0-9][1-9]|[1-9]0)|[1-9]00)|[1-9]000)-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])T([01][0-9]|2[0-3]):[0-5][0-9]:([0-5][0-9]|60)(\\.[0-9]+)?(Z|(\\+|-)((0[0-9]|1[0-3]):[0-5][0-9]|14:00))"
        } ]
      } ],
      "short": "Primitive value for instant",
      "definition": "Primitive value for instant",
      "representation": [ "xmlAttr" ]
    } ]
  },
  "contact": [ {
    "telecom": [ {
      "value": "http://hl7.org/fhir",
      "system": "url"
    } ]
  } ],
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Element"
}