{
"resourceType": "SearchParameter", "id": "filter", "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"
}