Search

 This Document

 All Library Documents



 Other Documents
Skip to end of metadata
Go to start of metadata

You are viewing an old version of this page. View the current version.

Compare with Current View Page History

« Previous Version 5 Next »

Important 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 assoc iating alternate Identifiersfrom various schemes with SNOMED CT components.

At any point in time , an alternate Identifierwithin a particular scheme will be associated with one and only one SNOMED CT component. A SNOMED CT componentmay be associated with zero or mor e alternate Identifierswithin a single scheme.

It is important to note that the SNOMED CT componentand it s alternate Identifiersall identify precisely the same real-world object.

Note: The Identifier file is not currently used in the SNOMED CT International Releaseas use of the more flexible Simple map type references setstructure 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.

Field

Data type

Immutable

Purpose

Part of Primary Key

identifierSchemeId

SCTID

Y

Identifierof the conceptenumeration value from the Metadata hierarchythat represents the scheme to which the Identifiervalue belongs. Set to a descendantof 900000000000453004 |Identifier scheme|within the metadata hierarchy.

YES (Full/Snapshot)

alternateIdentifier

String

Y

String representation of the alternate Identifierin its native scheme.

YES (Full/Snapshot)

effectiveTime

Time

N

Specifies the inclusive date at which the alternate Identifierwas associated with the SNOMED CT component.

YES (Full)

Optional (Snapshot)

active

Boolean

N

Specifies whether the association was activeor inactivefrom the point in time specified by the effectiveTime .

NO

moduleId

SCTID

N

Identifies the source module that this association was created in. Set to a childof 900000000000443000 |Module|within the metadata hierarchy.

NO

referencedComponentId

SCTID

Y

Uniquely identifies the SNOMED CT componentwith which the alternate Identifieris associated.

NO

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

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

Related Links


Feedback
  • No labels