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Unified Medical Language System (UMLS)

UMLS Vocabularies

PDQ (Physician Data Query) - Statistics


Semantic Type Distribution

Semantic Type IDSemantic Type NameCount Percentage Distribution
T121Pharmacologic Substance964832.3
T109Organic Chemical564718.9
T061Therapeutic or Preventive Procedure423414.2
T116Amino Acid, Peptide, or Protein24438.2
T191Neoplastic Process23307.8
T129Immunologic Factor19506.5
T114Nucleic Acid, Nucleoside, or Nucleotide4531.5
T025Cell3861.3
T130Indicator, Reagent, or Diagnostic Aid3711.2
T195Antibiotic3351.1

Term Type Counts

Term TypeExpanded FormCount
SYDesignated synonym17669
PTDesignated preferred name12462
CCNChemical code name4204
ACRAcronym3606
ABAbbreviation in any source vocabulary2345
BNFully-specified drug brand name that can not be prescribed1690
CHNChemical structure name1651
FBDForeign brand name1220
LVLexical variant609
PSCProtocol selection criteria571
ETEntry term264
ISObsolete Synonym230
OPObsolete preferred name195
HTHierarchical term179
CUCommon usage7

Attribute Counts

Attribute TypeExpanded FormCount
ORIG_STYOriginal semantic type13185
NCI_IDNCI thesaurus concept id10674
DATE_LAST_MODIFIEDDate last modified9465
DATE_FIRST_PUBLISHEDDate first published7458
PIDLegacy PDQ ID5943
LTIndicates if a chemicals or medical device is a tradename (present in older versions of the Metathesaurus and was discontinued, then brought back starting in 2002AD)2906
MENU_PARENTLink information to Term Menu parent. This may not always be the same as the TermParent. Element will not exist for top level menus, e.g. cancer.1477
MENU_TYPEValues are Clinical Trials--Cancer Type, Clinical Trials--Drug, or Cancer Information.1371
CAS_REGISTRYCAS Registry1159
PXCPDQ Protocol Exclusion Criteria - terms with type "exclusion criteria," which may be indexed on protocol records to identify conditions that exclude a patient from eligibility. 620
NSC_CODENSC Code607
IND_CODEIND Code337

Relationship Counts

Relation Name/Additional LabelExpanded FormCount
RO/component_ofhas relationship other than synonymous, narrower, or broader/Component of10814
RO/has_componenthas relationship other than synonymous, narrower, or broader/Has component10814
SY/source asserted synonymy./Empty relationship attribute4690
PAR/inverse_isahas parent relationship in a Metathesaurus source vocabulary /Inverse is a4298
CHD/isahas child relationship in a Metathesaurus source vocabulary /Is a4298
RN/lab_number_ofhas a narrower relationship/Lab number4204
RB/has_lab_numberhas a broader relationship/Has lab number4204
SY/has_expanded_formsource asserted synonymy./Has expanded form3606
SY/expanded_form_ofsource asserted synonymy./Expanded form of3606
RB/has_tradenamehas a broader relationship/Has tradename2910
RN/tradename_ofhas a narrower relationship/Tradename of2910
RO/associated_diseasehas relationship other than synonymous, narrower, or broader/Associated disease243
RO/associated_genetic_conditionhas relationship other than synonymous, narrower, or broader/Associated genetic condition243

Definition Count

Count
6374

Source Overlap

Source# Concepts Sharing Atom/# Total ConceptsPercentage Distribution
NCI16731/1886488.7
MSH6064/1886432.1
NCI_CTRP5328/1886428.2
CHV2921/1886415.5
SNOMEDCT_US2512/1886413.3
RXNORM2471/1886413.1
SCTSPA2456/1886413.0
MMSL2306/1886412.2
NCI_FDA2167/1886411.5
NCI_NCI-GLOSS2173/1886411.5
MSHGER2041/1886410.8
MSHFRE2005/1886410.6
MSHCZE1879/1886410.0
MSHPOR1859/188649.9
MEDCIN1810/188649.6
MSHSPA1813/188649.6
RCD1795/188649.5
DRUGBANK1738/188649.2
MSHITA1642/188648.7
NDFRT1615/188648.6
SNMI1360/188647.2
MSHPOL1347/188647.1
MSHRUS1348/188647.1
NDDF1311/188646.9
MSHSWE1248/188646.6
MDR1154/188646.1
MDRCZE1154/188646.1
MDRDUT1154/188646.1
MDRFRE1154/188646.1
MDRGER1154/188646.1
MDRHUN1154/188646.1
MDRITA1154/188646.1
MDRJPN1154/188646.1
MDRPOR1154/188646.1
MDRSPA1154/188646.1
MSHFIN1125/188646.0
VANDF1139/188646.0
MSHJPN1106/188645.9
MTHSPL1118/188645.9
GS1086/188645.8
MSHNOR1023/188645.4
NCI_DTP993/188645.3
CSP981/188645.2
ATC823/188644.4
USP787/188644.2
LNC758/188644.0
SNM763/188644.0
MSHDUT620/188643.3
USPMG626/188643.3
LCH_NW610/188643.2
MSHSCR585/188643.1
NCI_DCP482/188642.6
AOD485/188642.6
CCPSS404/188642.1
OMIM337/188641.8
ICD10AM345/188641.8
LCH348/188641.8
NCI_NICHD321/188641.7
ICPC2ICD10ENG303/188641.6
ICD10CM286/188641.5
HPO243/188641.3
MEDLINEPLUS245/188641.3
ICPC2ICD10DUT246/188641.3
ICD9CM227/188641.2
DXP230/188641.2
ICPC2P235/188641.2
MTHICD9199/188641.1
RCDAE213/188641.1
PSY214/188641.1