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The

Glossary ref
International Release
files to be imported should all be selected from the set of files representing a single
Glossary ref
Release Type
for a chosen version of the
Glossary ref
SNOMED CT International Release
.

Within the chosen file set the files identified in must be imported. The files listed in should also be imported as these provide important information about

Glossary ref
inactive concepts
and metadata about
Glossary ref
Description
types. The decision on whether to import the files listed in depends on whether the additional features identified in that table are required for the planned implementation. Finally the supplementary files listed in may be used to assist implementation but are not essential as the data they contain can be generated from the other files and/or replaced by alternative approaches to provide similar functionality.

Table 7. Mandatory import files

 

 

 

File type

Content

Notes

sct2_concept_ [rt] _INT...

Glossary ref
concepts

The primary

Glossary ref
components
of
Glossary ref
SNOMED CT
. Essential for all implementations.

sct2_description_ [rt] _INT...

Glossary ref
Descriptions

 

sct2_relationship_ [rt] _INT...

Glossary ref
Relationships

 

sct2_cRefset_Language [rt] - [lang] _INT...

Language

Glossary ref
Refset
(s)

At least one Language

Glossary ref
Refset
must be imported. The English Language
Glossary ref
refset
should be imported unless another Language
Glossary ref
refset
covering the full content is available and imported.

Table 8. Highly recommended import files

 

 

 

File type

Content

Notes

der2_cRefset_AttributeValue [rt] _...

Glossary ref
concept
Inactivation
Glossary ref
refset

Provides information about the status of

Glossary ref
inactive concepts
.

 

Glossary ref
Description
Inactivation
Glossary ref
Refset

Provides information about the status of

Glossary ref
inactive descriptions
.

der2_cRefset_DescriptionType [rt] _INT...

 

 

der2_cRefset_AssociationReference [rt] _INT...

 

 

Anchor
_46ed414d-70c9-4cdc-9c8b-5374bbdccf34__3
_46ed414d-70c9-4cdc-9c8b-5374bbdccf34__3

Table 9. Optional import files

 

 

 

File type

Content

Notes

der2_sRefset_SimpleMap [rt] _INT...

Maps from

Glossary ref
NHS
Glossary ref
Clinical Terms Version 3
codes, other
Glossary ref
Read Codes
to
Glossary ref
SNOMED CT

Only required if the server needs to be able to lookup

Glossary ref
SNOMED CT concepts
based on a
Glossary ref
CTV3
Glossary ref
Identifier
or
Glossary ref
Read Code
.

 

Maps from legacy

Glossary ref
SNOMED CT
3 codes to
Glossary ref
SNOMED CT

Only required if the server needs to be able to lookup

Glossary ref
SNOMED CT concepts
based on a legacy
Glossary ref
SNOMED CT
3 code.

WordEquivalents

 

 

StatedRelationships

 

 

Anchor
_46ed414d-70c9-4cdc-9c8b-5374bbdccf34__8
_46ed414d-70c9-4cdc-9c8b-5374bbdccf34__8
Table 10. Supplementary import files

 

 

 

File type

Content

Notes

DescWordKey

 

 

DescDualKey

 

 

ExcludedWords

 

 

TransitiveClosure

 

Generated from the

Glossary ref
Relationships
. Needs to be regenerated or updated if
Glossary ref
Extensions
are imported.

If

Glossary ref
Extensions
are required to support an implementation, the
Glossary ref
release files
to be imported should be selected from the set of files for a single
Glossary ref
Release Type
for a chosen version of that
Glossary ref
Extension
. It is important to ensure that the
Glossary ref
International Release
version(s) on which all the imported
Glossary ref
Extensions
are based has also been imported. The files that need to be imported from a chosen
Glossary ref
Extension
may vary depending on the scope of the
Glossary ref
Extension
.

Note: Advice should be sought from the

Glossary ref
Extension
provider on the essential and recommended requirements of files to be imported and supported.