Release 4 5

This page is part of the FHIR Specification (v4.0.1: R4 (v5.0.0: R5 - Mixed Normative and STU ) ). This is the current published version in it's permanent home (it will always be available at this URL). 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

Using Codes Code Systems Value Sets Concept Maps Identifier Systems

4.3.14.280 4.3.2.219 Code System CodeSystem http://hl7.org/fhir/search-comparator

FHIR Infrastructure icon Work Group   Maturity Level : 3 Trial Use Use Context : Any Country: World
This is a code system defined by the FHIR project. Committee:
Official URL : Title: http://hl7.org/fhir/search-comparator SearchComparator Definition: What Search Comparator Codes are supported in search. Version : 5.0.0
active as of 2021-01-05 FHIR Infrastructure Computable Name : SearchComparator Work Group
OID: 2.16.840.1.113883.4.642.4.638 (for OID based terminology systems) Flags : CaseSensitive, Complete. All codes ValueSet: Search Comparator Source Resource XML / JSON OID : 2.16.840.1.113883.4.642.4.638

This Code system is used in the following value sets:

4.3.14.280.1 4.3.2.219.1 Content Definition

What Search Comparator Codes are supported in search.

4.3.14.280.2 4.3.2.219.2 SearchComparator Content

What Search Comparator Codes are supported in search. This code system http://hl7.org/fhir/search-comparator defines the following codes:

Code Display Definition Copy
eq Equals the value for the parameter in the resource is equal to the provided value. btn   btn
ne Not Equals the value for the parameter in the resource is not equal to the provided value. btn   btn
gt Greater Than the value for the parameter in the resource is greater than the provided value. btn   btn
lt Less Than the value for the parameter in the resource is less than the provided value. btn   btn
ge Greater or Equals the value for the parameter in the resource is greater or equal to the provided value. btn   btn
le Less of Equal the value for the parameter in the resource is less or equal to the provided value. btn   btn
sa Starts After the value for the parameter in the resource starts after the provided value. btn   btn
eb Ends Before the value for the parameter in the resource ends before the provided value. btn   btn
ap Approximately the value for the parameter in the resource is approximately the same to the provided value. btn   btn

 

See the full registry of code systems defined as part of FHIR.

Explanation of the columns that may appear on this page:

Level A few code lists that FHIR defines are hierarchical - each code is assigned a level. 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