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Unified Medical Language System (UMLS)

UMLS Vocabularies

RCD (Read Codes) - Statistics


Semantic Type Distribution

Semantic Type IDSemantic Type NameCount Percentage Distribution
T033Finding2426412.4
T037Injury or Poisoning2144711.0
T047Disease or Syndrome193669.9
T061Therapeutic or Preventive Procedure192269.8
T074Medical Device139157.1
T200Clinical Drug134826.9
T121Pharmacologic Substance67633.5
T023Body Part, Organ, or Organ Component65643.4
T109Organic Chemical62473.2
T046Pathologic Function46592.4
T191Neoplastic Process45802.3
T060Diagnostic Procedure37851.9
T007Bacterium34221.7
T168Food33661.7
T019Congenital Abnormality32551.7
T058Health Care Activity30931.6
T170Intellectual Product26901.4
T097Professional or Occupational Group26651.4

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
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_US156188/18622483.9
SCTSPA154009/18622482.7
SNMI31231/18622416.8
MEDCIN28273/18622415.2
CHV24909/18622413.4
MSH17163/1862249.2
MDR17001/1862249.1
MDRBPO17001/1862249.1
MDRCZE17001/1862249.1
MDRDUT17001/1862249.1
MDRFRE17001/1862249.1
MDRGER17001/1862249.1
MDRHUN17001/1862249.1
MDRITA17001/1862249.1
MDRKOR17001/1862249.1
MDRPOR17001/1862249.1
MDRRUS17001/1862249.1
MDRSPA17001/1862249.1
NCI15978/1862248.6
MDRJPN15173/1862248.1
SNM13667/1862247.3
MSHCZE12633/1862246.8
MSHFRE12443/1862246.7
MSHSPA11681/1862246.3
MSHPOR11747/1862246.3
MSHGER11764/1862246.3
MSHITA11556/1862246.2
ICD10AM11430/1862246.1
RCDAE11149/1862246.0
ICD10CM10954/1862245.9
MSHSWE10978/1862245.9
RXNORM10821/1862245.8
ICPC2ICD10ENG10669/1862245.7
MSHNOR10322/1862245.5
MSHPOL9425/1862245.1
MSHRUS9428/1862245.1
ICD109457/1862245.1
DMDICD109265/1862245.0
ICD9CM9300/1862245.0
ICPC2ICD10DUT9300/1862245.0
RCDSY9117/1862244.9
MSHJPN8548/1862244.6
ICD10DUT8644/1862244.6
MSHFIN8644/1862244.6
KCD58395/1862244.5
MTHICD98076/1862244.3
MSHDUT7559/1862244.1
LNC6174/1862243.3
CSP5586/1862243.0
MMSL5377/1862242.9
OMIM4797/1862242.6
LCH_NW4821/1862242.6
CCPSS4887/1862242.6
AOD4707/1862242.5
NDDF4444/1862242.4
VANDF4030/1862242.2
FMA4133/1862242.2
MSHSCR4142/1862242.2
HPO3875/1862242.1
GS3779/1862242.0
MTHSPL3567/1862241.9
DXP3629/1862241.9
NCI_CDISC3263/1862241.8
ICPC2P3268/1862241.8
LCH3230/1862241.7
UWDA3241/1862241.7
NCI_FDA2913/1862241.6
MMX2918/1862241.6
NCBI2717/1862241.5
COSTAR2422/1862241.3
NCI_NICHD2512/1862241.3
NCI_caDSR1984/1862241.1
PSY2018/1862241.1
CST2072/1862241.1
NCI_NCI-GLOSS2082/1862241.1