Release 4B Snapshot #1

This page is part of the FHIR Specification v4.3.0-snapshot1: R4B Snapshot to support the Jan 2022 Connectathon. About the R4B version of FHIR. The current officially released version is 4.3.0. For a full list of available versions, see the Directory of published versions . Page versions: R5 R4B R4 R3

4.3.14.21 Code System http://hl7.org/fhir/search-param-type

FHIR Infrastructure Work Group Maturity Level: NNormative (from v4.0.0) Use Context: Any
This page has been approved as part of an ANSI standard. See the Conformance Package for further details.

This is a code system defined by the FHIR project.

Summary

Defining URL:http://hl7.org/fhir/search-param-type
Version:4.3.0-snapshot1
Name:SearchParamType
Title:SearchParamType
Definition:

Data types allowed to be used for search parameters.

Committee:FHIR Infrastructure Work Group
OID:2.16.840.1.113883.4.642.1.12 (for OID based terminology systems)
Source ResourceXML / JSON

This Code system is used in the following value sets:

  • ValueSet: SearchParamType (Data types allowed to be used for search parameters.)

4.3.14.21.1 Content

This code system http://hl7.org/fhir/search-param-type defines the following codes:

CodeDisplayDefinition
number NumberSearch parameter SHALL be a number (a whole number, or a decimal).
date Date/DateTimeSearch parameter is on a date/time. The date format is the standard XML format, though other formats may be supported.
string StringSearch parameter is a simple string, like a name part. Search is case-insensitive and accent-insensitive. May match just the start of a string. String parameters may contain spaces.
token TokenSearch parameter on a coded element or identifier. May be used to search through the text, display, code and code/codesystem (for codes) and label, system and key (for identifier). Its value is either a string or a pair of namespace and value, separated by a "|", depending on the modifier used.
reference ReferenceA reference to another resource (Reference or canonical).
composite CompositeA composite search parameter that combines a search on two values together.
quantity QuantityA search parameter that searches on a quantity.
uri URIA search parameter that searches on a URI (RFC 3986).
special SpecialSpecial logic applies to this parameter per the description of the search parameter.

 

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

Explanation of the columns that may appear on this page:

LevelA few code lists that FHIR defines are hierarchical - each code is assigned a level. See Code System for further information.
SourceThe source of the definition of the code (when the value set draws in codes defined elsewhere)
CodeThe code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract')
DisplayThe 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
DefinitionAn explanation of the meaning of the concept
CommentsAdditional notes about how to use the code