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glossary-ref

Gloss
tSNOMED
CT
is designed to allow the glossary-ref
Gloss
tInternational
Edition
to be enhanced by adding glossary-ref
Gloss
tExtensions
that meet national or local requirements. glossary-ref
Gloss
tExtensions
are managed by IHTSDO
Glossary ref
Gloss
tMembers
or glossary-ref
Gloss
tAffiliates
who have been issued with a glossary-ref
Gloss
tNamespace
Identifier
, which distinguishes the glossary-ref
Gloss
tIdentifiers
of the glossary-ref
Gloss
tComponents
they maintain. An glossary-ref
Gloss
tExtension
may contain glossary-ref
Gloss
tComponents
of various types (e.g. glossary-ref
Gloss
tConcepts
, glossary-ref
Gloss
tDescriptions
, glossary-ref
Gloss
tRelationships
, and glossary-ref
Gloss
tDerivatives
including glossary-ref
Gloss
tReference
Sets
used for a variety of purposes).

Related Links

  • DOCESG glossary-ref
  • Gloss
    tSNOMED
    CT
    Extension

Anchor
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glossary-ref
Gloss
tSNOMED
CT
is a detailed clinical terminology which covers a broad scope. However, some groups of users will need additional glossary-ref
Gloss
tConcepts
, glossary-ref
Gloss
tDescriptions
or glossary-ref
Gloss
tReference
Sets
to support national, local or organizational needs.

This section explains the structures that enable IHTSDO

Glossary ref
Gloss
tMembers
( glossary-ref
Gloss
tNational
Release
Centers
) and IHTSDO
Glossary ref
Gloss
tSNOMED International Affiliates
to add glossary-ref
Gloss
tConcepts
, glossary-ref
Gloss
tDescriptions
, glossary-ref
Gloss
tRelationships
and glossary-ref
Gloss
tReference
Sets
to glossary-ref
Gloss
tcomplement
the glossary-ref
Gloss
tSNOMED
CT
International
Release
.

The

glossary-ref
Gloss
tExtension
mechanism allows glossary-ref
Gloss
tSNOMED
CT
to be adapted to address the terminology needs of a country or organization which are not met by the glossary-ref
Gloss
tInternational
Release
. The mechanism provides a structure within which the components of each glossary-ref
Gloss
tExtension
are uniquely identified and attributed to a specific issuing organization. This ensures that, when instance data containing content from different glossary-ref
Gloss
tExtensions
if communicated, the provenance of each referenced glossary-ref
Gloss
tConcepts
is clear and ambiguity is avoided. Since the glossary-ref
Gloss
tInternational
Release
and all glossary-ref
Gloss
tExtensions
share the same common structure, the same application software can be used to enter, store and process information from different extensions. Similarly, glossary-ref
Gloss
tReference
Sets
can be constructed that refer to content from the glossary-ref
Gloss
tInternational
Release
and a variety of glossary-ref
Gloss
tExtensions
.

The common structure also means that, content developed by one organization can where relevant be easily submitted for possible inclusion in a

glossary-ref
Gloss
tNational
Edition
or in the glossary-ref
Gloss
tInternational
Edition
.

Using the

glossary-ref
Gloss
textension
structure can also help organizations transfer responsibility for terminology to the glossary-ref
Gloss
IHTSDO
tSNOMED International
or to another organization, subject to the terms
Specref
RefTypefield
tterm
of the Affiliate License.
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  • Local content requirements that are likely to have wider applicability should be submitted to a glossary-ref
    Gloss
    tNational
    Release
    Center
    for consideration.
  • National requirements likely to have International value should be submitted to the glossary-ref
    Gloss
    IHTSDO
    tSNOMED International
    so they can be considered for inclusion in the glossary-ref
    Gloss
    tInternational
    Edition
    .