The Semantic Type information is contained in the UMLS "SRDEF" file obtained when you download the UMLS Metathesaurus and run MetamorphoSys. For lines beginning with "STY", the third field contains the full name of the semantic type and the ninth field contains the abbreviation.
For convenience, we have included a parsable list of Semantic Types and their abbreviations from the UMLS via the link below. The format of the file is "Abbreviation|Type Unique Identifier (TUI)|Full Semantic Type Name". For additional information on Semantic Types, please refer to The UMLS Semantic Network website, the UMLS Semantic Network Fact Sheet, and the Current Semantic Types website .
Semantic Type Mappings (3.6 kb)
Also, we have included a parsable list of Semantic Groups and their mappings to the Semantic Types via the link below. The format of the file is "Semantic Group Abbrev|Semantic Group Name|TUI|Full Semantic Type Name". For additional information on Semantic Groups, please refer to the Semantic Groups web site.
Semantic Group File (5.7 kb)