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4.3.14.295 Code System http://hl7.org/fhir/search-xpath-usage

FHIR Infrastructure Work Group Maturity Level: 3Trial Use Use Context: Any

This is a code system defined by the FHIR project.

Summary

Defining URL:http://hl7.org/fhir/search-xpath-usage
Version:3.6.0
Name:XPathUsageType
Title:XPathUsageType
Definition:

How a search parameter relates to the set of elements returned by evaluating its xpath query.

Committee:FHIR Infrastructure Work Group
OID:2.16.840.1.113883.4.642.1.636 (for OID based terminology systems)
Source ResourceXML / JSON

This Code system is used in the following value sets:

  • ValueSet: XPathUsageType (How a search parameter relates to the set of elements returned by evaluating its xpath query.)

How a search parameter relates to the set of elements returned by evaluating its xpath query.

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

CodeDisplayDefinition
normal NormalThe search parameter is derived directly from the selected nodes based on the type definitions.
phonetic PhoneticThe search parameter is derived by a phonetic transform from the selected nodes.
nearby NearbyThe search parameter is based on a spatial transform of the selected nodes.
distance DistanceThe search parameter is based on a spatial transform of the selected nodes, using physical distance from the middle.
other OtherThe interpretation of the xpath statement is unknown (and can't be automated).

 

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


Explanation of the columns that may appear on this page:

LvlA 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