As the release fileformats contain a number of conceptenumerations, it is necessary to define sets of conceptsthat represent the allowed values. As well as the enumerated values, other metadata supporting the extensibility mechanism and the concept modelis required.
The concept 900000000000441003 | SNOMED CT Model Component (metadata)| is a subtypeof the root concept( 138875005 | SNOMED CT Concept| ), and contains the metadata, supporting the release.
The subtypesof 900000000000441003 | SNOMED CT Model Component (metadata)| are described in the following table and the top three levels of the hierarchy are shown in the figure below this.
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Id |
Term |
Comment |
|---|---|---|
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Conceptst hat specify
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Conceptsthat specify the ExtensionNamespaces allocated by the SNOMED International. |
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Conceptsthat are referenced from enumerated fields within the International Releasefiles (the Concept, Description, Relationship, Identifier ). |
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The metadata that supports the extensibility mechanism, and is discussed in more detail in the Reference Sets Guide. |
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