is designed to allow the
to be enhanced by adding
that meet national or local requirements.
are managed by
who have been issued with a
, which distinguishes the
they maintain. An
of various types (e.g.
used for a variety of purposes).
is a detailed clinical terminology which covers a broad scope. However, some groups of users will need additional
to support national, local or organizational needs.
This section explains the structures that enable
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to be adapted to address the terminology needs of a country or organization which are not met by the
. The mechanism provides a structure within which the components of each
are uniquely identified and attributed to a specific issuing organization. This ensures that, when instance data containing content from different
if communicated, the provenance of each referenced
is clear and ambiguity is avoided. Since the
share the same common structure, the same application software can be used to enter, store and process information from different extensions. Similarly,
can be constructed that refer to content from the
and a variety of
The common structure also means that, content developed by one organization can where relevant be easily submitted for possible inclusion in a
or in the
structure can also help organizations transfer responsibility for terminology to the
or to another organization, subject to the
of the Affiliate License.
- Local content requirements that are likely to have wider applicability should be submitted to a for consideration.
- National requirements likely to have International value should be submitted to the so they can be considered for inclusion in the .