US Core Implementation Guide, published by HL7 International / Cross-Group Projects. This guide is not an authorized publication; it is the continuous build for version 9.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/US-Core/ and changes regularly. See the Directory of published versions
| Page standards status: Trial-use | Maturity Level: 5 |
@prefix fhir: <http://hl7.org/fhir/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
# - resource -------------------------------------------------------------------
<http://hl7.org/fhir/SearchParameter/us-core-encounter-date> a fhir:SearchParameter ;
fhir:nodeRole fhir:treeRoot ;
fhir:Resource.id [ fhir:value "us-core-encounter-date"] ;
fhir:DomainResource.text [
fhir:Narrative.status [ fhir:value "extensions" ] ;
fhir:Narrative.div "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n <!-- <h4>Custom liquid Version</h4> -->\n <hr/>\n <p><b>id</b> us-core-encounter-date</p>\n <!-- <p><b>url</b> : <code><a href=\"SearchParameter-us-core-encounter-date.html\">USCoreEncounterDate</a>}</code></p>>\n <p><b>name</b> : USCoreEncounterDate</p> -->\n \n <p><b>derivedFrom</b> : <code> http://hl7.org/fhir/SearchParameter/clinical-date</code></p> <!-- added leading space to prevent build from trying to create link -->\n \n <p><b>status</b> : Active</p>\n \n <p><b>date</b> : 2024-11-17</p>\n <!-- <p><b>publisher</b> : HL7 International / Cross-Group Projects</p>\n <p><b>contact</b> : http://www.hl7.org/Special/committees/cgp</p>\n <p><b>jurisdiction</b> : United States of America (the) <span> (Details : {urn:iso:std:iso:3166 code 'US' = 'United States of America', given as 'United\n States of America (the)'})</span>\n </p> -->\n <p><b>code</b> : \"date\"</p>\n <p><b>base</b> : Encounter </p>\n <p><b>type</b> : Date/DateTime</p>\n <p><b>expression</b> : <code>Encounter.period</code></p>\n \n <p><b>multipleOr</b> : true (Conformance Expectation = MAY)</p>\n <p><b>multipleAnd</b> : true (Conformance Expectation = SHOULD)</p>\n \n <p><b>comparator codes</b> :</p>\n <ul>\n <li>\"eq\" <i>Equals</i> (Conformance Expectation = MAY)</li>\n <li>\"ne\" <i>Not Equals</i> (Conformance Expectation = MAY)</li>\n <li>\"gt\" <i>Greater Than</i> (Conformance Expectation = SHALL)</li>\n <li>\"ge\" <i>Greater or Equals</i> (Conformance Expectation = SHALL)</li>\n <li>\"lt\" <i>Less Than</i> (Conformance Expectation = SHALL)</li>\n <li>\"le\" <i>Less of Equal</i> (Conformance Expectation = SHALL)</li>\n <li>\"sa\" <i>Starts After</i> (Conformance Expectation = MAY)</li>\n <li>\"eb\" <i>Ends Before</i> (Conformance Expectation = MAY)</li>\n <li>\"ap\" <i>Approximately</i> (Conformance Expectation = MAY)</li>\n </ul>\n \n\n \n\n \n</div>"
] ;
fhir:DomainResource.extension [
fhir:index 0 ;
fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm" ] ;
fhir:Extension.valueInteger [ fhir:value "5"^^xsd:integer ]
], [
fhir:index 1 ;
fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg" ] ;
fhir:Extension.valueCode [ fhir:value "cgp" ]
], [
fhir:index 2 ;
fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status" ] ;
fhir:Extension.valueCode [
fhir:value "trial-use" ;
fhir:Element.extension [
fhir:index 0 ;
fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom" ] ;
fhir:Extension.valueCanonical [
fhir:value "http://hl7.org/fhir/us/core/ImplementationGuide/hl7.fhir.us.core" ;
fhir:link <http://hl7.org/fhir/us/core/ImplementationGuide/hl7.fhir.us.core>
]
]
]
] ;
fhir:SearchParameter.url [ fhir:value "http://hl7.org/fhir/us/core/SearchParameter/us-core-encounter-date"] ;
fhir:SearchParameter.version [ fhir:value "9.0.0"] ;
fhir:SearchParameter.name [ fhir:value "USCoreEncounterDate"] ;
fhir:SearchParameter.derivedFrom [
fhir:value "http://hl7.org/fhir/SearchParameter/clinical-date" ;
fhir:link <http://hl7.org/fhir/SearchParameter/clinical-date>
] ;
fhir:SearchParameter.status [ fhir:value "active"] ;
fhir:SearchParameter.experimental [ fhir:value "false"^^xsd:boolean] ;
fhir:SearchParameter.date [ fhir:value "2024-11-17"^^xsd:date] ;
fhir:SearchParameter.publisher [ fhir:value "HL7 International / Cross-Group Projects"] ;
fhir:SearchParameter.contact [
fhir:index 0 ;
fhir:ContactDetail.name [ fhir:value "HL7 International / Cross-Group Projects" ] ;
fhir:ContactDetail.telecom [
fhir:index 0 ;
fhir:ContactPoint.system [ fhir:value "url" ] ;
fhir:ContactPoint.value [ fhir:value "http://www.hl7.org/Special/committees/cgp" ]
], [
fhir:index 1 ;
fhir:ContactPoint.system [ fhir:value "email" ] ;
fhir:ContactPoint.value [ fhir:value "cgp@lists.HL7.org" ]
]
] ;
fhir:SearchParameter.description [ fhir:value "**A date within the period the Encounter lasted** \nNOTE: This SearchParameter is defined only to document Server and Client expectations. Its definition is derived from the standard FHIR SearchParameter and it uses the [Conformance expectation extension](http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation) to define additional expectations for the following SearchParameter elements:\n- `multipleAnd`\n- `multipleOr`\n- `comparator`\n- `modifier`\n- `chain`\n\nIt **SHALL NOT** be used as a search parameter for search. Servers and Clients **SHOULD** use the standard FHIR SearchParameter.\n"] ;
fhir:SearchParameter.jurisdiction [
fhir:index 0 ;
fhir:CodeableConcept.coding [
fhir:index 0 ;
fhir:Coding.system [ fhir:value "urn:iso:std:iso:3166" ] ;
fhir:Coding.code [ fhir:value "US" ]
]
] ;
fhir:SearchParameter.code [ fhir:value "date"] ;
fhir:SearchParameter.base [
fhir:value "Encounter" ;
fhir:index 0
] ;
fhir:SearchParameter.type [ fhir:value "date"] ;
fhir:SearchParameter.expression [ fhir:value "Encounter.period"] ;
fhir:SearchParameter.xpathUsage [ fhir:value "normal"] ;
fhir:SearchParameter.multipleOr [
fhir:value "true"^^xsd:boolean ;
fhir:Element.extension [
fhir:index 0 ;
fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation" ] ;
fhir:Extension.valueCode [ fhir:value "MAY" ]
]
] ;
fhir:SearchParameter.multipleAnd [
fhir:value "true"^^xsd:boolean ;
fhir:Element.extension [
fhir:index 0 ;
fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation" ] ;
fhir:Extension.valueCode [ fhir:value "SHOULD" ]
]
] ;
fhir:SearchParameter.comparator [
fhir:value "eq" ;
fhir:index 0 ;
fhir:Element.extension [
fhir:index 0 ;
fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation" ] ;
fhir:Extension.valueCode [ fhir:value "MAY" ]
]
], [
fhir:value "ne" ;
fhir:index 1 ;
fhir:Element.extension [
fhir:index 0 ;
fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation" ] ;
fhir:Extension.valueCode [ fhir:value "MAY" ]
]
], [
fhir:value "gt" ;
fhir:index 2 ;
fhir:Element.extension [
fhir:index 0 ;
fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation" ] ;
fhir:Extension.valueCode [ fhir:value "SHALL" ]
]
], [
fhir:value "ge" ;
fhir:index 3 ;
fhir:Element.extension [
fhir:index 0 ;
fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation" ] ;
fhir:Extension.valueCode [ fhir:value "SHALL" ]
]
], [
fhir:value "lt" ;
fhir:index 4 ;
fhir:Element.extension [
fhir:index 0 ;
fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation" ] ;
fhir:Extension.valueCode [ fhir:value "SHALL" ]
]
], [
fhir:value "le" ;
fhir:index 5 ;
fhir:Element.extension [
fhir:index 0 ;
fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation" ] ;
fhir:Extension.valueCode [ fhir:value "SHALL" ]
]
], [
fhir:value "sa" ;
fhir:index 6 ;
fhir:Element.extension [
fhir:index 0 ;
fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation" ] ;
fhir:Extension.valueCode [ fhir:value "MAY" ]
]
], [
fhir:value "eb" ;
fhir:index 7 ;
fhir:Element.extension [
fhir:index 0 ;
fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation" ] ;
fhir:Extension.valueCode [ fhir:value "MAY" ]
]
], [
fhir:value "ap" ;
fhir:index 8 ;
fhir:Element.extension [
fhir:index 0 ;
fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation" ] ;
fhir:Extension.valueCode [ fhir:value "MAY" ]
]
] .
# - ontology header ------------------------------------------------------------
<http://hl7.org/fhir/SearchParameter/us-core-encounter-date.ttl> a owl:Ontology ;
owl:imports fhir:fhir.ttl ;
owl:versionIRI <http://build.fhir.org/SearchParameter/us-core-encounter-date.ttl> .
IG © 2026+ HL7 International / Cross-Group Projects. Package hl7.fhir.us.core#9.0.0 based on FHIR 4.0.1. Generated 2026-09-09
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