2012AB US Extension to SNOMED CT Source Information

Counts

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Attribute Name	Description	Count (MRSAT.RRF)
DESCRIPTIONSTATUS	SNOMED CT description status which indicates whether a description (concept name) is in active use and, if not, the reason it is inactive.	4218
DESCRIPTIONTYPE	SNOMED CT term type, indicating whether the term is the Preferred Term, Synonym or the Fully Specified Name for the associated concept.	4218
INITIALCAPITALSTATUS	SNOMED CT capital status, indicating whether the capitalization of the first character of the SNOMED CT term is significant.	4218
LANGUAGECODE	SNOMED CT string identifying a language and, if appropriate, a dialect in which this description is valid.	4218
SUBSETMEMBER	Indicates the subset(s) to which an atom belongs and its status (e.g., active, inactive) in the subset(s).	3394
CHARACTERISTICTYPE	SNOMED CT indication of whether a relationship specifies a defining characteristic of the source concept or a possible qualification of that Concept.	2262
REFINABILITY	Indicates whether it is possible or mandatory to refine the atom when this relationship is used as a template for clinical data entry.	2262
CONCEPTSTATUS	SNOMED CT status which indicates whether a concept is in active use and, if not, indicates the reason it is inactive.	1322
ISPRIMITIVE	SNOMED CT indicator of whether concept is primitive or fully defined by its defining characteristics.	1322
SUBSETLANGUAGECODE	SNOMED CT identifier of a language and, if appropriate, a dialect to which a subset applies.	1
SUBSETORIGINALID	SNOMED CT identifier for the first version of the subset on which this subset is based.	1
SUBSETTYPE	Single digit integer indicating the nature of a SNOMED CT subset and the type of SNOMED CT component that may be a member of the subset. The meaning of the non-zero values can be found in the SNOMED CT documentation; a value of 0 is not defined as a type.	1
SUBSETVERSION	SNOMED CT identifier for the version of a subset. An integer increased for each revised release.	1

Notes

• Attributes included every discrete piece of information about a concept, an atom, or a relationship that is not part of the basic Metathesaurus concept structure or distributed in one of the relationship files.
• Attribute Names (ATN) are based on source documentation or NLMs understanding of the source.
• Sample attribute values (ATV) are provided for each ATN in the source.
• Sample data highlight examples of ATNs and Attribute Values (ATV) in MRSAT.RRF.
• See Metathesaurus Documentation for a complete list of attribute names.
• See Section 2.5 of the UMLS Reference Manual for more information on attributes in the UMLS Metathesaurus.

Sample Data