{
  "description": "**Obtained date/time. If the obtained element is a period, a date that falls in the period**  \\n**NOTE**: This US Core SearchParameter definition extends the usage context of the\\n[Conformance expectation extension](http://hl7.org/fhir/R4/extension-capabilitystatement-expectation.html)\\n - multipleAnd\\n - multipleOr\\n - comparator\\n - modifier\\n - chain",
  "_filename": "SearchParameter-us-core-observation-date.json",
  "package_name": "hl7.fhir.us.core",
  "date": "2020-11-20T05:19:29.697843Z",
  "expression": "Observation.effective",
  "publisher": "HL7 International - Cross-Group Projects",
  "multipleAnd": true,
  "_comparator": [ {
    "extension": [ {
      "url": "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
      "valueCode": "MAY"
    } ]
  }, {
    "extension": [ {
      "url": "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
      "valueCode": "MAY"
    } ]
  }, {
    "extension": [ {
      "url": "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
      "valueCode": "SHALL"
    } ]
  }, {
    "extension": [ {
      "url": "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
      "valueCode": "SHALL"
    } ]
  }, {
    "extension": [ {
      "url": "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
      "valueCode": "SHALL"
    } ]
  }, {
    "extension": [ {
      "url": "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
      "valueCode": "SHALL"
    } ]
  }, {
    "extension": [ {
      "url": "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
      "valueCode": "MAY"
    } ]
  }, {
    "extension": [ {
      "url": "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
      "valueCode": "MAY"
    } ]
  }, {
    "extension": [ {
      "url": "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
      "valueCode": "MAY"
    } ]
  } ],
  "jurisdiction": [ {
    "coding": [ {
      "code": "US",
      "system": "urn:iso:std:iso:3166"
    } ]
  } ],
  "derivedFrom": "http://hl7.org/fhir/SearchParameter/clinical-date",
  "multipleOr": true,
  "name": "USCoreObservationDate",
  "xpath": "f:Observation/f:effectiveDateTime|f:Observation/f:effectivePeriod|f:Observation/f:effectiveTiming|f:Observation/f:effectiveInstant",
  "xpathUsage": "normal",
  "type": "date",
  "experimental": "false",
  "resourceType": "SearchParameter",
  "title": null,
  "package_version": "4.1.0",
  "status": "active",
  "id": "4eb6926f-9228-4136-b71a-49f2dc2e5b70",
  "kind": null,
  "_multipleOr": {
    "extension": [ {
      "url": "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
      "valueCode": "MAY"
    } ]
  },
  "url": "http://hl7.org/fhir/us/core/SearchParameter/us-core-observation-date",
  "code": "date",
  "comparator": [ "eq", "ne", "gt", "ge", "lt", "le", "sa", "eb", "ap" ],
  "base": [ "Observation" ],
  "version": "4.1.0",
  "contact": [ {
    "name": "HL7 International - Cross-Group Projects",
    "telecom": [ {
      "value": "http://www.hl7.org/Special/committees/cgp",
      "system": "url"
    }, {
      "value": "cgp@lists.HL7.org",
      "system": "email"
    } ]
  } ],
  "_multipleAnd": {
    "extension": [ {
      "url": "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
      "valueCode": "SHOULD"
    } ]
  }
}