Release File Specification

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Note
titleImportant Note


The Identifier File does not contain any data in the SNOMED CT International Release

The file structure is documented here only as a point of reference for others who may be using the files in an extension release.

This file provides a standardized way of associating alternate from alternatefrom various schemes with.

At any point in time, an alternate within alternatewithin a particular scheme will be associated with one and only one. A may Amay be associated with zero or more alternate within alternatewithin a single scheme.

It is important to note that the and theand its alternate all alternateall identify precisely the same real-world object.

Note: The Identifier file is not currently used in the as theas use of the more flexible structure flexiblestructure is preferred for links to alternative codes. The only known current use of this file is for internal identification of components during the content development process.

Anchor
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_95c9b492-9b72-44f4-a9d5-a118802f48e1__6
Table 12. Identifier file - Detailed Specification

 

 

 

Field

Data type

Immutable

Purpose

 

identifierSchemeId (field)

SCTID (data type)

Y

of

the enumeration

theenumeration value from the

Metadata that

Metadatathat represents the scheme to which

the value

thevalue belongs. Set to

a of

aof

Scg expression
ShowPartsid+term
900000000000453004|Identifier scheme|
within the metadata.

 

alternateIdentifier (field)

String (data type)

Y

String (data type) representation of the

alternate in

alternatein its native scheme.

 

effectiveTime (field)

Time (data type)

N

Specifies the inclusive date at which the

alternate was

alternatewas associated with the.

 

active (field)

Boolean (data type)

N

Specifies whether the association

was or from

wasorfrom the point in time specified by the effectiveTime (field) .

 

moduleId (field)

SCTID (data type)

N

Identifies the source module that this association was created in. Set to

a of

aof

Scg expression
ShowPartsid+term
900000000000443000|Module|
within the metadata.

 

referencedComponentId (field)

SCTID (data type)

Y

Uniquely identifies

the with

thewith which the

alternate is

alternateis associated.

 

Only one record with the same identifierSchemeId (field) and alternateIdentifier (field) fields will be current at any point in time. The current record will be the one with the most recent effectiveTimebefore or equal to the point in time under consideration.

If the field thefield of this record is false ('0'), then the association is at isat that point in time. If the field thefield is true ('1'), then there is an identity at that point in time between the referencedComponentId (field) (a) and the alternateIdentifier in the scheme identified by identifierSchemeId (field) .

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