This page is part of the FHIR Specification (v1.6.0: STU 3 Ballot 4). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions 
SearchParameter based-on
{
"resourceType": "SearchParameter",
"id": "condition-extensions-Condition-based-on",
"url": "http://hl7.org/fhir/SearchParameter/condition-extensions-Condition-based-on",
"name": "based-on",
"code": "based-on",
"base": "Condition",
"type": "reference",
"description": "Matches on the basedon extension value",
"xpath": "f:Condition/f:extension[@url='http://hl7.org/fhir/StructureDefinition/condition-basedon'] | f:Condition/f:extension[@url='http://hl7.org/fhir/StructureDefinition/condition-basedon']",
"xpathUsage": "normal"
}
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.