Skip Navigation Bar
 

Unified Medical Language System® (UMLS®)

2012AB SNOMED CT Source Information

Counts

 (skip to: notes)

Semantic Type Count Percentage
THERAPEUTIC OR PREVENTIVE PROCEDURE 40486 12.4
FINDING 37100 11.4
DISEASE OR SYNDROME 34056 10.5
INJURY OR POISONING 26589 8.2
BODY PART, ORGAN, OR ORGAN COMPONENT 18901 5.8
BACTERIUM 11826 3.6
PHARMACOLOGIC SUBSTANCE 10996 3.4
AMINO ACID, PEPTIDE, OR PROTEIN 10489 3.2
CLINICAL DRUG 9646 3
LABORATORY PROCEDURE 10035 3.1
NEOPLASTIC PROCESS 9035 2.8
DIAGNOSTIC PROCEDURE 8713 2.7
ORGANIC CHEMICAL 8401 2.6
CONGENITAL ABNORMALITY 6071 1.9
IMMUNOLOGIC FACTOR 5593 1.7
HEALTH CARE ACTIVITY 5476 1.7
PATHOLOGIC FUNCTION 5098 1.6
EUKARYOTE 4756 1.5
MEDICAL DEVICE 4377 1.3
MAMMAL 4387 1.3
PROFESSIONAL OR OCCUPATIONAL GROUP 4228 1.3
ENZYME 3836 1.2
BODY LOCATION OR REGION 3776 1.2
INTELLECTUAL PRODUCT 3198 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