This page is part of the FHIR Specification (v4.3.0: R4B - STU). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R5 R4B R4
FHIR Infrastructure Work Group | Maturity Level: N/A | Standards Status: Informative | Compartments: Not linked to any defined compartments |
Raw XML (canonical form + also see XML Format Specification)
Formal Definition for _filter parameter (id = "filter")
<?xml version="1.0" encoding="UTF-8"?> <SearchParameter xmlns="http://hl7.org/fhir"> <id value="filter"/> <text> <status value="generated"/> <div xmlns="http://www.w3.org/1999/xhtml"> <p> <b> Generated Narrative</b> </p> <div style="display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%"> <p style="margin-bottom: 0px">Resource "filter" </p> </div> <p> <b> url</b> : <code> http://hl7.org/fhir/SearchParameter/filter</code> </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> : FHIR Project: <a href="http://hl7.org/fhir">http://hl7.org/fhir</a> </p> <p> <b> description</b> : This is the formal declaration for the _filter parameter, documented at [http://hl7.org/fhir/searc h_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> </text> <url value="http://hl7.org/fhir/SearchParameter/filter"/> <version value="1"/> <name value="FilterSearchParameter"/> <status value="draft"/> <experimental value="false"/> <date value="2018-07-26"/> <publisher value="Health Level Seven International (FHIR Infrastructure)"/> <contact> <name value="FHIR Project"/> <telecom> <system value="url"/> <value value="http://hl7.org/fhir"/> </telecom> </contact> <description value="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 value="Support combination searches when the simple name=value basis of search cannot express what is required"/> <code value="_filter"/> <base value="Resource"/> <type value="special"/> </SearchParameter>
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.