Release 4B Ballot #1

This page is part of the FHIR Specification (v4.1.0: Release 4B Ballot #1). 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

Searchparameter-filter.json

FHIR Infrastructure Work GroupMaturity Level: N/AStandards Status: InformativeCompartments: 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</b></p><p><b>url</b>: <a>http://hl7.org/fhir/SearchParameter/filter</a></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>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/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.