This page is part of the FHIR Specification (v3.5.0: R4 Ballot #2). 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 R3
Vocabulary Work Group | Maturity Level: N/A | Ballot Status: Informative |
Raw JSON (canonical form + also see JSON Format Specification)
Definition for Code System FilterOperator
{ "resourceType" : "CodeSystem", "id" : "filter-operator", "meta" : { "lastUpdated" : "2018-08-19T21:48:56.559+10:00" }, "text" : { "status" : "extensions", "div" : "<div>!-- Snipped for Brevity --></div>" }, "extension" : [{ "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg", "valueCode" : "vocab" }, { "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status", "valueString" : "Normative" }, { "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:2.16.840.1.113883.4.642.1.479" }], "version" : "3.5.0", "name" : "FilterOperator", "title" : "FilterOperator", "status" : "draft", "experimental" : false, "date" : "2018-08-19T21:48:56+10:00", "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-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-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-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)." }] }
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.