This page is part of the FHIR Specification (v5.0.0: R5 - STU). This is the current published version in it's permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions . Page versions: R5 R4B R4 R3 R2
Terminology Infrastructure Work Group | Maturity Level: N | Normative (from v4.0.0) | Use Context: Country: World |
Official URL: http://hl7.org/fhir/ValueSet/filter-operator
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Version: 5.0.0 | |||
active as of 2020-12-28 | Computable Name: FilterOperator | |||
Flags: Immutable | OID: 2.16.840.1.113883.4.642.3.478 |
This value set is used in the following places:
The kind of operation to perform as a part of a property based filter.
http://hl7.org/fhir/filter-operator
This expansion generated 26 Mar 2023
This value set contains 11 concepts
Expansion based on Filter Operator v5.0.0 (CodeSystem)
Code | System | Display | Definition |
= | http://hl7.org/fhir/filter-operator | Equals | The specified property of the code equals the provided value. |
is-a | http://hl7.org/fhir/filter-operator | Is A (by subsumption) | 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). |
descendent-of | http://hl7.org/fhir/filter-operator | Descendent Of (by subsumption) | 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). |
is-not-a | http://hl7.org/fhir/filter-operator | Not (Is A) (by subsumption) | The specified property of the code does not have an is-a relationship with the provided value. |
regex | http://hl7.org/fhir/filter-operator | Regular Expression | The specified property of the code matches the regex specified in the provided value. |
in | http://hl7.org/fhir/filter-operator | In Set | The specified property of the code is in the set of codes or concepts specified in the provided value (comma-separated list). |
not-in | http://hl7.org/fhir/filter-operator | Not in Set | The specified property of the code is not in the set of codes or concepts specified in the provided value (comma-separated list). |
generalizes | http://hl7.org/fhir/filter-operator | Generalizes (by Subsumption) | 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). |
child-of | http://hl7.org/fhir/filter-operator | Child Of | 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. |
descendent-leaf | http://hl7.org/fhir/filter-operator | Descendent Leaf | 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. |
exists | http://hl7.org/fhir/filter-operator | Exists | 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). |
See the full registry of value sets defined as part of FHIR.
Explanation of the columns that may appear on this page:
Lvl | A few code lists that FHIR defines are hierarchical - each code is assigned a level. For value sets, levels are mostly used to organize codes for user convenience, but may follow code system hierarchy - see Code System for further information |
Source | The source of the definition of the code (when the value set draws in codes defined elsewhere) |
Code | The code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract') |
Display | The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application |
Definition | An explanation of the meaning of the concept |
Comments | Additional notes about how to use the code |