Release 5 Preview #1
TerminologyThis page is part of the FHIR Specification (v4.2.0: R5 Preview #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 R2
| Vocabulary Work Group | Maturity Level: N | Normative (from v4.0.0) | Use Context: Any |
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This page has been approved as part of an ANSI standard.
See the Conformance Package for further details.
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This is a value set defined by the FHIR project.
Summary
| Defining URL: | http://hl7.org/fhir/ValueSet/filter-operator |
| Version: | 4.2.0 |
| Name: | FilterOperator |
| Title: | FilterOperator |
| Definition: | The kind of operation to perform as a part of a property based filter. |
| Committee: | Vocabulary Work Group |
| OID: | 2.16.840.1.113883.4.642.3.478 (for OID based terminology systems) |
| Source Resource | XML / JSON |
This value set is used in the following places:
This value set includes codes from the following code systems:
http://hl7.org/fhir/filter-operator
This expansion generated 31 Dec 2019
This value set contains 9 concepts
Expansion based on http://hl7.org/fhir/filter-operator version 4.2.0
All codes from system http://hl7.org/fhir/filter-operator
| Code | Display | Definition |
| = | Equals | The specified property of the code equals the provided value. |
| is-a | 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 | 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 | Not (Is A) (by subsumption) | The specified property of the code does not have an is-a relationship with the provided value. |
| regex | Regular Expression | The specified property of the code matches the regex specified in the provided value. |
| in | 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 | 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 | 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). |
| exists | 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 |
FHIR ®© HL7.org 2011+. FHIR CI Build hl7.fhir.core#4.2.0 (GitHub f996518d66) generated on Tue, Dec 31, 2019 21:06+1100.
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