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| FHIR Infrastructure Work Group | Maturity Level : N/A | Standards Status : Informative | Compartments : Not linked to any defined compartments |
Raw JSON ( canonical form + also see JSON Format Specification )
Formal Definition for _filter parameter
{
"resourceType": "SearchParameter",
"id": "filter",
"text": {
"status": "generated",
"div": "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative with Details</b></p><p><b>id</b>: filter</p><p><b>url</b>: <b>http://hl7.org/fhir/SearchParameter/filter</b></p><p><b>version</b>: 1</p><p><b>name</b>: FilterSearchParameter</p><p><b>status</b>: draft</p><p><b>experimental</b>: false</p><p><b>date</b>: 26/07/2018</p><p><b>publisher</b>: Health Level Seven International (FHIR Infrastructure)</p><p><b>contact</b>: </p><p><b>description</b>: This is the formal declaration for the _filter parameter, documented at [http://hl7.org/fhir/search_filter.html](http://hl7.org/fhir/search_filter.html)</p><p><b>purpose</b>: Support combination searches when the simple name=value basis of search cannot express what is required</p><p><b>code</b>: _filter</p><p><b>base</b>: Resource</p><p><b>type</b>: special</p></div>"
"div": "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative with Details</b></p><p><b>id</b>: filter</p><p><b>url</b>: <b>http://hl7.org/fhir/SearchParameter/filter</b></p><p><b>version</b>: 1</p><p><b>name</b>: FilterSearchParameter</p><p><b>status</b>: draft</p><p><b>experimental</b>: false</p><p><b>date</b>: 2018-07-26</p><p><b>publisher</b>: Health Level Seven International (FHIR Infrastructure)</p><p><b>contact</b>: </p><p><b>description</b>: This is the formal declaration for the _filter parameter, documented at [http://hl7.org/fhir/search_filter.html](http://hl7.org/fhir/search_filter.html)</p><p><b>purpose</b>: Support combination searches when the simple name=value basis of search cannot express what is required</p><p><b>code</b>: _filter</p><p><b>base</b>: Resource</p><p><b>type</b>: special</p></div>"
},
"url": "http://hl7.org/fhir/SearchParameter/filter",
"version": "1",
"name": "FilterSearchParameter",
"status": "draft",
"experimental": false,
"date": "2018-07-26",
"publisher": "Health Level Seven International (FHIR Infrastructure)",
"contact": [
{
"name": "FHIR Project",
"telecom": [
{
"system": "url",
"value": "http://hl7.org/fhir"
}
]
}
],
"description": "This is the formal declaration for the _filter parameter, documented at [http://hl7.org/fhir/search_filter.html](http://hl7.org/fhir/search_filter.html)",
"purpose": "Support combination searches when the simple name=value basis of search cannot express what is required",
"code": "_filter",
"base": [
"Resource"
],
"type": "special"
}
Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification.