{
"resourceType": "CodeSystem", "id": "filter-operator", "meta": { "lastUpdated": "2019-11-01T09:29:23.356+11:00" }, "extension": [ { "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg", "valueCode": "vocab" }, { "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status", "valueCode": "normative" }, { "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version", "valueCode": "4.0.0" }, { "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm", "valueInteger": 5 } ], "url": "http://hl7.org/fhir/filter-operator", "identifier": [ { "system": "urn:ietf:rfc:3986", "value": "urn:oid:2.16.840.1.113883.4.642.4.479" } ], "version": "4.0.1", "name": "FilterOperator", "title": "FilterOperator", "status": "active", "experimental": false, "date": "2019-11-01T09:29:23+11:00", "publisher": "HL7 (FHIR Project)", "contact": [ { "telecom": [ { "system": "url", "value": "http://hl7.org/fhir" }, { "system": "email", "value": "fhir@lists.hl7.org" } ] } ], "description": "The kind of operation to perform as a part of a property based filter.", "caseSensitive": true, "valueSet": "http://hl7.org/fhir/ValueSet/filter-operator", "content": "complete", "concept": [ { "code": "=", "display": "Equals", "definition": "The specified property of the code equals the provided value." }, { "extension": [ { "url": "http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments", "valueString": "The definition of is-a is that all the properties of the value are true for the specified property of the code, which means that a code has an is-a relationship with itself. To exclude the root code, use descendent-of" } ], "code": "is-a", "display": "Is A (by subsumption)", "definition": "Includes all concept ids that have a transitive is-a relationship with the concept Id provided as the value, including the provided concept itself (include descendant codes and self)." }, { "extension": [ { "url": "http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments", "valueString": "The definition of is-a is that all the properties of the value are true for the specified property of the code. \n\nSpelling note: \"descendant\" is a more correct spelling, but the spelling \"descendent\" is maintained in the code for backwards compatibility reasons" } ], "code": "descendent-of", "display": "Descendent Of (by subsumption)", "definition": "Includes all concept ids that have a transitive is-a relationship with the concept Id provided as the value, excluding the provided concept itself i.e. include descendant codes only)." }, { "code": "is-not-a", "display": "Not (Is A) (by subsumption)", "definition": "The specified property of the code does not have an is-a relationship with the provided value." }, { "code": "regex", "display": "Regular Expression", "definition": "The specified property of the code matches the regex specified in the provided value." }, { "code": "in", "display": "In Set", "definition": "The specified property of the code is in the set of codes or concepts specified in the provided value (comma separated list)." }, { "code": "not-in", "display": "Not in Set", "definition": "The specified property of the code is not in the set of codes or concepts specified in the provided value (comma separated list)." }, { "extension": [ { "url": "http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments", "valueString": "The definition of is-a is that all the properties of the value are true for the specified property of the code, which means that a code has an is-a relationship with itself. To exclude the root code, add it explicitly to as an exclude" } ], "code": "generalizes", "display": "Generalizes (by Subsumption)", "definition": "Includes all concept ids that have a transitive is-a relationship from the concept Id provided as the value, including the provided concept itself (i.e. include ancestor codes and self)." }, { "code": "exists", "display": "Exists", "definition": "The specified property of the code has at least one value (if the specified value is true; if the specified value is false, then matches when the specified property of the code has no values)." } ]
}