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Unified Medical Language System (UMLS)

UMLS Vocabularies

ATC (Anatomical Therapeutic Chemical Classification System) - Statistics


Semantic Type Distribution

Semantic Type IDSemantic Type NameCount Percentage Distribution
T121Pharmacologic Substance494047.4
T109Organic Chemical340832.7
T116Amino Acid, Peptide, or Protein5004.8
T129Immunologic Factor2962.8
T195Antibiotic2922.8
T130Indicator, Reagent, or Diagnostic Aid2482.4
T125Hormone2001.9
T197Inorganic Chemical1141.1

Term Type Counts

Term TypeExpanded FormCount
INName for an ingredient5067
PTDesignated preferred name1264
RXN_PTRxnorm Preferred600
RXN_INRxnorm Preferred Ingredient65

Attribute Counts

Attribute TypeExpanded FormCount
ATC_LEVELATC LEVEL6331
IS_DRUG_CLASSIs Drug Class1264

Relationship Counts

Relation Name/Additional LabelExpanded FormCount
CHD/member_ofhas child relationship in a Metathesaurus source vocabulary /Member of5067
PAR/has_memberhas parent relationship in a Metathesaurus source vocabulary /Has member5067
PAR/inverse_isahas parent relationship in a Metathesaurus source vocabulary /Inverse is a1264
CHD/isahas child relationship in a Metathesaurus source vocabulary /Is a1264

Definition Count

Count
0

Source Overlap

Source# Concepts Sharing Atom/# Total ConceptsPercentage Distribution
MSH3215/557757.6
NCI2965/557753.2
SNOMEDCT_US2903/557752.1
SCTSPA2884/557751.7
NCI_FDA2793/557750.1
NDDF2765/557749.6
RXNORM2729/557748.9
DRUGBANK2454/557744.0
VANDF2056/557736.9
MMSL1888/557733.9
CHV1856/557733.3
MTHSPL1733/557731.1
GS1735/557731.1
MEDCIN1712/557730.7
MSHFRE1697/557730.4
MSHGER1688/557730.3
MSHCZE1665/557729.9
MSHPOR1668/557729.9
MSHSPA1651/557729.6
MSHITA1637/557729.4
MSHPOL1593/557728.6
MSHRUS1593/557728.6
MSHSWE1593/557728.6
SNMI1358/557724.4
RCD1354/557724.3
MSHFIN1351/557724.2
MSHJPN1320/557723.7
LNC1125/557720.2
USP964/557717.3
SNM956/557717.1
PDQ850/557715.2
USPMG767/557713.8
CSP725/557713.0
NCI_CTRP604/557710.8
LCH_NW575/557710.3
NCI_NCI-GLOSS520/55779.3
AOD463/55778.3
MSHSCR441/55777.9
LCH365/55776.5
MSHNOR353/55776.3
NCI_DCP344/55776.2
PSY240/55774.3
NCI_DTP230/55774.1
CPM99/55771.8
CCPSS82/55771.5
RCDAE61/55771.1