{
  "description": "Obtained date/time. If the obtained element is a period, a date that falls in the period
\\nNOTE: This US Core SearchParameter definition extends the usage context of\\ncapabilitystatement-expectation\\n extension to formally express implementer expectations for these elements:
\\n - multipleAnd
\\n - multipleOr
\\n - modifier
\\n - comparator
\\n - chain
\\n ",
  "_filename": "SearchParameter-us-core-observation-date.json",
  "package_name": "hl7.fhir.us.core",
  "date": "2019-09-23T19:48:46+10:00",
  "expression": "Observation.effective",
  "modifier": [ "missing" ],
  "publisher": "HL7 International - US Realm Steering Committee",
  "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": "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",
      "display": "United States of America"
    } ]
  } ],
  "derivedFrom": "http://hl7.org/fhir/SearchParameter/clinical-date",
  "multipleOr": true,
  "name": "USCoreObservationDate",
  "xpath": "f:Observation/f:effectiveDateTime",
  "xpathUsage": "normal",
  "type": "date",
  "experimental": "false",
  "resourceType": "SearchParameter",
  "title": null,
  "package_version": "3.1.0",
  "status": "active",
  "id": "f46f13e5-2257-4c8d-8989-b4391831102b",
  "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", "lt", "le", "sa", "eb", "ap" ],
  "base": [ "Observation" ],
  "version": "3.1.0",
  "_modifier": [ {
    "extension": [ {
      "url": "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
      "valueCode": "MAY"
    } ]
  } ],
  "contact": [ {
    "telecom": [ {
      "value": "http://www.hl7.org/Special/committees/usrealm/index.cfm",
      "system": "url"
    } ]
  } ],
  "_multipleAnd": {
    "extension": [ {
      "url": "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
      "valueCode": "SHOULD"
    } ]
  }
}