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Body:

EMPTY


Attributes:

Codetext

SystemURI

SystemNametext(optional)
SystemVersiontext(optional)
Descriptiontext(optional)
CommentOIDtext(optional)Reference to a CommentDef


Contained in:

ItemGroupDef, ItemDef, CodeList, CodeListItem, EnumeratedItem


Usage:

RequirementOptional
CardinalityZero or more


A Concept references a defined concept using a symbol from a defined code system.  It uses a code defined in a terminology system to associate semantics with a given term, codelist, variable, or group of variables. The presence of a Concept associates a meaning to its parent element. Including multiple Concept elements for a given parent indicates synonymous meanings provided by different code systems or code system versions.

The Code is a string pattern that identifies a concept as defined by the code system.

The System is a URI that identifies the code system that defines the code. If the code is taken from a code system resource then the URL for the code system should be used to represent the System. SystemName is a readable name for the System. Version identifies the version of the System. 

Description provides a readable name or designation for the concept identified by the code. Its use is optional and is not intended to replace the Decode value for a CodeListItem. 

CommentOID references a unique ID of a CommentDef element that provides the rationale for the use of the Concept.

<CodeList OID="CL.NRIND" Name="Reference Range Indicator" DataType="text">
  <EnumeratedItem CodedValue="ABNORMAL">
	  <Concept Code="C78802" System="https://www.cdisc.org/standards/terminology" SystemName="CDISC/NCI CT" SystemVersion="2019-12-20"/>
  </EnumeratedItem>
  <EnumeratedItem CodedValue="HIGH">
      <Concept Code="C78800" System="https://www.cdisc.org/standards/terminology" SystemName="CDISC/NCI CT" SystemVersion="2019-12-20"/>
  </EnumeratedItem>
  <EnumeratedItem CodedValue="LOW">
      <Concept Code="C78801" System="https://www.cdisc.org/standards/terminology" SystemName="CDISC/NCI CT" SystemVersion="2019-12-20"/>
  </EnumeratedItem>
  <EnumeratedItem CodedValue="NORMAL">
      <Concept Code="C78727" System="https://www.cdisc.org/standards/terminology" SystemName="CDISC/NCI CT" SystemVersion="2019-12-20"/>
  </EnumeratedItem>
  <Concept Code="C78736" System="https://www.cdisc.org/standards/terminology" SystemName="CDISC/NCI CT" SystemVersion="2019-12-20"/>
</CodeList>


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