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Unified Medical Language System (UMLS)

UMLS Vocabularies

UMD (UMDNS) - Statistics


Semantic Type Distribution

Semantic Type IDSemantic Type NameCount Percentage Distribution
T074Medical Device1771362.8
T130Indicator, Reagent, or Diagnostic Aid805328.5
T073Manufactured Object15005.3
T170Intellectual Product4881.7

Term Type Counts

Term TypeExpanded FormCount
ETEntry term15694
PTDesignated preferred name12397
SYDesignated synonym9450
RTTerm that is related to, but often considered non-synonymous with, the preferred term4700
HTHierarchical term69

Attribute Counts

Attribute TypeExpanded FormCount
DEVTYPEDevice Type42310
SYCODESynonym Code2732

Relationship Counts

Relation Name/Additional LabelExpanded FormCount
SIB/has sibling relationship in a Metathesaurus source vocabulary./Empty relationship attribute1056012
RO/has relationship other than synonymous, narrower, or broader/Empty relationship attribute56188
RN/has a narrower relationship/Empty relationship attribute14672
RB/has a broader relationship/Empty relationship attribute14672
CHD/isahas child relationship in a Metathesaurus source vocabulary /Is a12981
PAR/inverse_isahas parent relationship in a Metathesaurus source vocabulary /Inverse is a12981

Definition Count

Count
11251

Source Overlap

Source# Concepts Sharing Atom/# Total ConceptsPercentage Distribution
DMDUMD3238/2815411.5
SNOMEDCT_US2446/281548.7
SCTSPA2406/281548.5
CHV1156/281544.1
SPN1058/281543.8
RCD445/281541.6
SNMI430/281541.5
MSHFRE381/281541.4
MSH392/281541.4
MSHGER364/281541.3
MSHCZE367/281541.3
MSHNOR368/281541.3
NCI327/281541.2
MSHSPA346/281541.2
MSHPOR348/281541.2
MSHITA349/281541.2