Unified Medical Language System^® (UMLS^®)

2012AB US Extension to SNOMED CT Source Information

Skip to: Atoms, Attributes, Definitions, Relationships, Mappings

VSAB: SCTUSX_2012_09_01

Summary of Changes

The directory structure and file names for the SCTUSX release have changed, however there are no changes to processing of files in the Terminology subdirectory.

The SCTUSX_2012_09_01 release includes a "Subsets/Language-en-US" subdirectory which was not present in the previous release. These files were processed in accordance with the SNOMEDCT RF1 subset file processing.

New ATNs:
REFINABILITY and CHARACTERISTICTYPE are included in SCTUSX_2012_09_01. These attributes were omitted from SCTUSX_2012_03_01

Original Files:

The RF1 format files were processed for SCTUSX_2012_09_01. Metathesaurus SCTUSX data is extracted from the following tab-delimited files:

SnomedCT_Release_US1000124_20120901/RF1Release/Terminology/Content:

sct1_Concepts_US1000124_20120901.txt
sct1_Descriptions_en-US_US1000124_20120901.txt
sct1_Relationships_US1000124_20120901.txt

SnomedCT_Release_US1000124_20120901/RF1Release/Subsets/Language-en-US/

der1_SubsetMembers_en-US_US1000124_20120901.txt
der1_Subsets_en-US_US1000124_20120901.txt

Note: The SCTUSX hierarchy is designed as an extension to the SNOMEDCT hierarchy. Due to complications in representing a mixed-source hierarchy, the SCTUSX hierarchy is not represented in MRHIER.RRF, however it is represented in MRREL.RRF as follows:

REL/REL_INVERSE: PAR/CHD
RELA/RELA_INVERSE: inverse_isa/isa

Identifiers

Identifiers are assigned as follows:

CODE: CONCEPTID
SAUI: DESCRIPTIONID
SCUI: Same as CODE
SDUI: Not Applicable

741

Atoms (MRCONSO)

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Note: In SCTUSX_2012_03_01, there was exactly one PT for every FN. In SCTUX_2012_09_01, there are fewer PTs than FNs, because some PTs are connected to SNOMEDCT FNs.

Term Type	Origin
FN	An FN (Fully Specified Name) atom is created for each line of sct1_Descriptions_en-US_US1000124_20120901.txt having DESCRIPTIONTYPE=3, DESCRIPTIONSTATUS=0 as follows: CODE, SCUI = CONCEPTID SAUI = DESCRIPTIONID STR = TERM SUPPRESSIBLE=N Note: FN atoms are removed from processing when their ancestors are present only in SNOMEDCT RF2 files. They will be included in a future Metathesaurus release.
OF	An OF (Obsolete Fully specified name) atom is created for each line of sct1_Descriptions_en-US_US1000124_20120901.txt having DESCRIPTIONTYPE=3, a DESCRIPTIONSTATUS other than 0 as follows: CODE, SCUI = CONCEPTID SAUI = DESCRIPTIONID STR = TERM SUPPRESSIBLE=O Note: In SCTUSX_2012_09_01, all obsolete atoms are created from descriptions with a DESCRIPTIONSTATUS value of "5" or "8"
PT	A PT (Preferred Term) atom is created for each line of sct1_Descriptions_en-US_US1000124_20120901.txt having DESCRIPTIONTYPE=1, DESCRIPTIONSTATUS=0 as follows: CODE, SCUI = CONCEPTID SAUI = DESCRIPTIONID STR = TERM SUPPRESSIBLE=N Note: PT atoms are removed from processing when their ancestors are present only in SNOMEDCT RF2 files. They will be included in a future Metathesaurus release.
OP	An OP (Obsolete Preferred term) atom is created for each line of sct1_Descriptions_en-US_US1000124_20120901.txt having DESCRIPTIONTYPE=1 and a DESCRIPTIONSTATUS other than 0, as follows: CODE, SCUI = CONCEPTID SAUI = DESCRIPTIONID STR = TERM SUPPRESSIBLE=O Note: In SCTUSX_2012_09_01, all obsolete atoms are created from descriptions with a DESCRIPTIONSTATUS value of "5" or "8"
SY	An SY (Synonym) atom is created for each line of sct1_Descriptions_en-US_US1000124_20120901.txt having DESCRIPTIONTYPE=2, DESCRIPTIONSTATUS=0, as follows: CODE, SCUI = CONCEPTID SAUI = DESCRIPTIONID STR = TERM SUPPRESSIBLE=N
IS	An IS (obsolete Synonym) atom is created for each line of sct1_Descriptions_en-US_US1000124_20120901.txt having DESCRIPTIONTYPE=2 and a DESCRIPTIONSTATUS other than 0, as follows: CODE, SCUI = CONCEPTID SAUI = DESCRIPTIONID STR = TERM SUPPRESSIBLE=O Note: In SCTUSX_2012_09_01, all obsolete atoms are created from descriptions with a DESCRIPTIONSTATUS value of "5" or "8"
SB	One SB (subset) atom is generated from der1_Subsets_en-US_US1000124_20120901.txt as follows: CODE, SCUI = SUBSETID STR = SUBSETNAME

Attributes (MRSAT)

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Attribute Name	STYPE	Origin
CONCEPTSTATUS	SCUI	CONCEPTSTATUS from sct1_Concepts_US1000124_20120901.txt
DESCRIPTIONSTATUS	AUI	DESCRIPTIONSTATUS from sct1_Descriptions_en-US_US1000124_20120901.txt
DESCRIPTIONTYPE	AUI	DESCRIPTIONTYPE from sct1_Descriptions_en-US_US1000124_20120901.txt
INITIALCAPITALSTATUS	AUI	INITIALCAPITALSTATUS from sct1_Descriptions_en-US_US1000124_20120901.txt
ISPRIMITIVE	SCUI	ISPRIMITIVE from sct1_Concepts_US1000124_20120901.txt
LANGUAGECODE	AUI	LANGUAGECODE from sct1_Descriptions_en-US_US1000124_20120901.txt
SUBSETLANGUAGECODE	AUI	LANGUAGECODE from der1_Subsets_en-US_US1000124_20120901.txt
SUBSETMEMBER	AUI	Has 3 components, separated by "~" characters: SUBSETID, MEMBERSTATUS, and LINKEDID, from der1_SubsetMembers_en-US_US1000124_20120901.txt
SUBSETORIGINALID	AUI	SUBSETORIGINALID fromder1_Subsets_en-US_US1000124_20120901.txt
SUBSETTYPE	AUI	SUBSETTYPE from der1_Subsets_en-US_US1000124_20120901.txt
SUBSETVERSION	AUI	SUBSETVERSION from der1_Subsets_en-US_US1000124_20120901.txt

Definitions (MRDEF)

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No definitions are provided for SCTUSX.

Relationships (MRREL)

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Note: The SCTUSX hierarchy is designed as an extension to the SNOMEDCT hierarchy. Due to complications in representing a mixed-source hierarchy, the SCTUSX hierarchy is not represented in MRHIER.RRF.

REL	RELA/Inverse RELA	ORIGIN
CHD PAR	(blank)	Hierarchical relationships are derived from rows of sct1_Relationships_US1000124_20120901.txt where RELATIONSHIPTYPE is 116680003 ("Is a").
RB RN RO SY	(many RELA values)	These are derived from rows of sct1_Relationships_US1000124_20120901.txt where RELATIONSHIPTYPE is not 116680003 ("Is a"). The REL and RELA values used for each RELATIONSHIPTYPE are specified by SNOMEDCT UMLSREL and UMLSRELA attributes, respectively. RELA="replaces/replaced_by" are created from sct1_References_US1000124_20120901.txt

Mappings (MRMAP)