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Unified Medical Language System (UMLS)

RCD (Read Codes) - Statistics


Semantic Type Distribution

Semantic Type IDSemantic Type NameCount Percentage Distribution
T033Finding2422712.4
T037Injury or Poisoning2146811.0
T047Disease or Syndrome193089.9
T061Therapeutic or Preventive Procedure192519.8
T074Medical Device139267.1
T200Clinical Drug134376.9
T121Pharmacologic Substance67543.5
T023Body Part, Organ, or Organ Component65753.4
T109Organic Chemical62493.2
T046Pathologic Function46052.4
T191Neoplastic Process45662.3
T060Diagnostic Procedure37901.9
T007Bacterium34241.7
T168Food33721.7
T019Congenital Abnormality32851.7
T058Health Care Activity30921.6
T170Intellectual Product27071.4
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
CHD/has child relationship in a Metathesaurus source vocabulary /Empty relationship attribute211639
PAR/has parent relationship in a Metathesaurus source vocabulary /Empty relationship attribute211639

Definition Count

Count
0

Source Overlap

Source# Concepts Sharing Atom/# Total ConceptsPercentage Distribution
SNOMEDCT_US156181/18623783.9
SCTSPA153989/18623782.7
SNMI31161/18623716.7
MEDCIN26706/18623714.3
CHV24929/18623713.4
MDR16447/1862378.8
MDRCZE16447/1862378.8
MDRDUT16447/1862378.8
MDRFRE16447/1862378.8
MDRGER16447/1862378.8
MDRHUN16447/1862378.8
MDRITA16447/1862378.8
MDRPOR16447/1862378.8
MDRSPA16447/1862378.8
MSH15800/1862378.5
NCI15150/1862378.1
MDRJPN14622/1862377.9
SNM13638/1862377.3
MSHFRE12219/1862376.6
MSHCZE11777/1862376.3
MSHITA11466/1862376.2
MSHGER11550/1862376.2
RXNORM11345/1862376.1
ICD10AM11428/1862376.1
RCDAE11140/1862376.0
MSHSPA11162/1862376.0
MSHPOR11192/1862376.0
ICD10CM10910/1862375.9
ICPC2ICD10ENG10651/1862375.7
MSHNOR10175/1862375.5
ICD109458/1862375.1
MSHPOL9260/1862375.0
MSHRUS9261/1862375.0
DMDICD109265/1862375.0
ICPC2ICD10DUT9286/1862375.0
ICD9CM9302/1862375.0
RCDSY9116/1862374.9
MSHSWE9205/1862374.9
NDFRT8521/1862374.6
MSHJPN8537/1862374.6
MSHFIN8637/1862374.6
ICD10DUT8645/1862374.6
KCD58396/1862374.5
MTHICD98071/1862374.3
MSHDUT7577/1862374.1
CSP5588/1862373.0
MMSL5361/1862372.9
LNC5492/1862372.9
LCH_NW4825/1862372.6
CCPSS4876/1862372.6
AOD4706/1862372.5
OMIM4379/1862372.4
NDDF4436/1862372.4
VANDF4018/1862372.2
FMA4126/1862372.2
MSHSCR4131/1862372.2
MTHSPL3568/1862371.9
DXP3625/1862371.9
HPO3365/1862371.8
MMX3230/1862371.7
LCH3232/1862371.7
UWDA3238/1862371.7
ICPC2P3258/1862371.7
NCI_CDISC3012/1862371.6
NCI_FDA2752/1862371.5
GS2654/1862371.4
NCBI2699/1862371.4
COSTAR2420/1862371.3
NCI_NICHD2505/1862371.3
PSY2022/1862371.1
CST2068/1862371.1
NCI_NCI-GLOSS2103/1862371.1