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Unified Medical Language System® (UMLS®)

2012AB LOINC Source Information

Counts

 (skip to: notes)

Semantic Type Count Percentage
CLINICAL ATTRIBUTE 79323 51.3
IMMUNOLOGIC FACTOR 14710 9.5
AMINO ACID, PEPTIDE, OR PROTEIN 12055 7.8
FINDING 10293 6.7
INTELLECTUAL PRODUCT 7095 4.6
ORGANIC CHEMICAL 6227 4
PHARMACOLOGIC SUBSTANCE 4857 3.1
LABORATORY PROCEDURE 3475 2.2
BIOLOGICALLY ACTIVE SUBSTANCE 2824 1.8
CELL 2574 1.7
BODY PART, ORGAN, OR ORGAN COMPONENT 2534 1.6
QUANTITATIVE CONCEPT 2360 1.5
SPATIAL CONCEPT 2313 1.5
DIAGNOSTIC PROCEDURE 2097 1.4
TEMPORAL CONCEPT 2019 1.3
NUCLEIC ACID, NUCLEOSIDE, OR NUCLEOTIDE 1604 1
QUALITATIVE CONCEPT 1513 1

Notes

  • Semantic Types are a set of broad subject areas that provide a consistent categorization of concepts represented in the Metathesaurus. Semantic Types are arranged into two mutually exclusive hierarchies, Entity and Event.
  • Semantic Types help summarize the content of a source.
  • Each Metathesaurus concept is assigned at least one semantic type, many have more than one.
  • The report displays the most frequently assigned semantic types in descending order, up to a total of 1%.
  • The 'Count' field below is the number of concepts assigned a specific semantic type and containing at least one atom from the source.
  • The 'Percentage' field below is the count relative to the total number of concepts that contain an atom from that source.
  • The MRSTY file contains one row for each Semantic Type assigned to each concept. All Metathesaurus concepts have at least one entry in this file.
  • See Chapter 5 of the UMLS Reference Manual to read more about the Semantic Network