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Unified Medical Language System® (UMLS®)

2009AB ICD-9-CM Entry Terms Source Information

Counts

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Semantic TypeCountPercentage
DISEASE OR SYNDROME 5666 35.5
INJURY OR POISONING 2805 17.6
THERAPEUTIC OR PREVENTIVE PROCEDURE 2380 14.9
NEOPLASTIC PROCESS 998 6.3
FINDING 852 5.3
CONGENITAL ABNORMALITY 758 4.7
PATHOLOGIC FUNCTION 586 3.7
MENTAL OR BEHAVIORAL DYSFUNCTION 534 3.3
DIAGNOSTIC PROCEDURE 390 2.4
PHENOMENON OR PROCESS 322 2
ACQUIRED ABNORMALITY 224 1.4
ANATOMICAL ABNORMALITY 209 1.3
SIGN OR SYMPTOM 200 1.3
HUMAN-CAUSED PHENOMENON OR PROCESS 178 1.1

Notes

  • Semantic Types are a set of 135 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 UMLS Documentation, Section 3, Semantic Network