This page is part of the FHIR Specification (v5.0.0-snapshot1: Release 5 Snapshot #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 R3
| Vocabulary Work Group | Maturity Level: N/A | Standards Status: Informative |
Raw JSON (canonical form + also see JSON Format Specification)
Definition for Code System FilterOperator
{
"resourceType" : "CodeSystem",
"id" : "filter-operator",
"meta" : {
"lastUpdated" : "2021-12-19T08:15:41.873+11:00",
"profile" : ["http://hl7.org/fhir/StructureDefinition/shareablecodesystem"]
},
"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",
"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:2.16.840.1.113883.4.642.1.479"
}],
"version" : "5.0.0-snapshot1",
"name" : "FilterOperator",
"title" : "FilterOperator",
"status" : "active",
"experimental" : false,
"date" : "2021-01-05T10:01:24+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" : "child-of",
"display" : "Child Of",
"definition" : "Only concepts with a direct hierarchical relationship to the index code and no other concepts. This does not include the index code in the output."
},
{
"code" : "descendent-leaf",
"display" : "Descendent Leaf",
"definition" : "Includes concept ids that have a transitive is-a relationship with the concept Id provided as the value, but which do not have any concept ids with transitive is-a relationships with themselves."
},
{
"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.