This 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 
FHIR Infrastructure   Work Group | Maturity Level: 0 | Trial Use | Use Context: Any | 
This is a value set defined by the FHIR project.
Summary
| Defining URL: | http://hl7.org/fhir/ValueSet/topic-match-operator | 
| Version: | 4.2.0 | 
| Name: | TopicFilterByMatchType | 
| Title: | TopicFilterByMatchType | 
| Definition: | Operator to apply to filter label.  | 
| Committee: | FHIR Infrastructure   Work Group | 
| OID: | 2.16.840.1.113883.4.642.3.1461 (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/topic-match-operator
This expansion generated 31 Dec 2019
This value set contains 5 concepts
Expansion based on http://hl7.org/fhir/topic-match-operator version 4.2.0
All codes from system http://hl7.org/fhir/topic-match-operator
| Code | Display | Definition | 
| = | = | Used to match a value according to FHIR Search rules (e.g., Patient/123, Encounter/2002). | 
| in | in | The key value in the topic stream is an active members of the reference set identified by the concept provided as the filter value. | 
| not-in | not-in | The key value in the topic stream is NOT an active members of the reference set identified by the concept provided as the filter value. | 
| above | above | The key value is subsumes the value in the filter value. | 
| below | below | The key value is subsumed by the value in the filter value. | 
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 |