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Unified Medical Language System (UMLS)

RCD (Read Codes) - Statistics


Semantic Type Distribution

Semantic Type IDSemantic Type NameCount Percentage Distribution
T033Finding2421212.4
T037Injury or Poisoning2147511.0
T047Disease or Syndrome192989.9
T061Therapeutic or Preventive Procedure192469.8
T074Medical Device139267.1
T200Clinical Drug134416.9
T121Pharmacologic Substance67543.5
T023Body Part, Organ, or Organ Component65733.4
T109Organic Chemical62543.2
T046Pathologic Function46072.4
T191Neoplastic Process45642.3
T060Diagnostic Procedure37881.9
T007Bacterium34241.7
T168Food33741.7
T019Congenital Abnormality32881.7
T058Health Care Activity31011.6
T170Intellectual Product27021.4
T097Professional or Occupational Group26631.4

Term Type Counts

Term TypeExpanded FormCount
PTDesignated preferred name139144
ABAbbreviation in any source vocabulary65396
OPObsolete preferred name61394
OAObsolete abbreviation42438
SYDesignated synonym35473
ISObsolete Synonym2872
ATAttribute type795
AAAttribute type abbreviation31
ASAttribute type synonym25

Attribute Counts

Attribute TypeExpanded FormCount
RIDRead Codes Term_id - identifier assigned to a Read term, used in referring to the term in the Read file structure, and may be used in clinical information systems.347682

Relationship Counts

Relation Name/Additional LabelExpanded FormCount
SIB/has sibling relationship in a Metathesaurus source vocabulary./Empty relationship attribute2289982
SY/source asserted synonymy./Empty relationship attribute215962
PAR/has parent relationship in a Metathesaurus source vocabulary /Empty relationship attribute211639
CHD/has child relationship in a Metathesaurus source vocabulary /Empty relationship attribute211639

Definition Count

Count
0

Source Overlap

Source# Concepts Sharing Atom/# Total ConceptsPercentage Distribution
SNOMEDCT_US156191/18624483.9
SCTSPA154001/18624482.7
SNMI31162/18624416.7
MEDCIN26452/18624414.2
CHV24929/18624413.4
MDR16377/1862448.8
MDRCZE16377/1862448.8
MDRDUT16377/1862448.8
MDRFRE16377/1862448.8
MDRGER16377/1862448.8
MDRHUN16377/1862448.8
MDRITA16377/1862448.8
MDRPOR16377/1862448.8
MDRSPA16377/1862448.8
MSH15744/1862448.5
NCI15116/1862448.1
MDRJPN14552/1862447.8
SNM13637/1862447.3
MSHFRE12145/1862446.5
MSHGER11482/1862446.2
MSHCZE11581/1862446.2
RXNORM11346/1862446.1
MSHITA11421/1862446.1
ICD10AM11429/1862446.1
RCDAE11140/1862446.0
ICD10CM10910/1862445.9
MSHSPA11029/1862445.9
MSHPOR11065/1862445.9
ICPC2ICD10ENG10655/1862445.7
MSHNOR9982/1862445.4
ICD109459/1862445.1
DMDICD109266/1862445.0
ICPC2ICD10DUT9291/1862445.0
ICD9CM9304/1862445.0
RCDSY9116/1862444.9
MSHPOL9204/1862444.9
MSHSWE9204/1862444.9
MSHRUS9206/1862444.9
NDFRT8517/1862444.6
MSHJPN8536/1862444.6
MSHFIN8636/1862444.6
ICD10DUT8646/1862444.6
KCD58397/1862444.5
MTHICD98072/1862444.3
MSHDUT7578/1862444.1
CSP5587/1862443.0
MMSL5357/1862442.9
LNC5438/1862442.9
LCH_NW4826/1862442.6
CCPSS4873/1862442.6
AOD4705/1862442.5
NDDF4431/1862442.4
OMIM4353/1862442.3
VANDF4014/1862442.2
MSHSCR4106/1862442.2
FMA4127/1862442.2
MTHSPL3567/1862441.9
DXP3624/1862441.9
HPO3297/1862441.8
MMX3227/1862441.7
LCH3232/1862441.7
UWDA3238/1862441.7
ICPC2P3259/1862441.7
NCI_CDISC2968/1862441.6
NCI_FDA2725/1862441.5
GS2652/1862441.4
NCBI2697/1862441.4
COSTAR2421/1862441.3
NCI_NICHD2506/1862441.3
PSY2023/1862441.1
CST2068/1862441.1
NCI_NCI-GLOSS2115/1862441.1