Counts
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Relationship
Relationship Attribute
Count (MRREL.RRF)
SIB
*
904830
RQ
classifies
66587
RO
has_member
48189
PAR
*
27258
RQ
mapped_from
26460
SY
mth_british_form_of
811
SY
mth_has_expanded_form
660
PAR
*
26
SY
expanded_form_of
26
Notes
Sample data are taken from MRREL.RRF. Associated strings(str) from MRCONSO.RRF are also included
See relationships definitions below.
Every relationship has a separate row in MRREL.RRF.
Relationships are assigned based on source documentation or NLM understanding of the source.
Metathesaurus relationships in MRREL.RRF are read from right to left .
All relationships in MRREL.RRF are expressed in both directions, for example: 'has_ingredient/ingredient_of'. Inverse relationships in each pair are indicated on this page.
An asterisk (*) in the relationship attribute column indicates that no relationship attribute (RELA) was assigned.
Every even row (indicated by orange colored rel/rela pairs) indicates that the current row is an inverse relationship of the row above it.
See section 2.7.1.3.9 in UMLS Documentation Section 2, Metathesaurus for more information on Related Concepts, MRREL.RRF.
Relationship Definitions
AQ : allowed qualifier
CHD : has child (narrower hierarchical term)
DEL : deleted concept
PAR : has parent (broader hierarchical term)
QB : can be qualifier by
RB : has a broader relationship
RL : has similar or like relationship
RN : has narrower relationship
RO : has relationship other than synonymous, narrower or broader
RQ : related and possibly synonymous
SIB : has sibling
SY : source-asserted synonymy
Sample Data
SIB (return to top)
CUI1
AUI1
STYPE1
STR
REL
STR
STYPE2
AUI2
CUI2
C0919792
A1961456
SDUI
Walking aid user
SIB
Mandibular prosthesis user
SDUI
A2294135
C1096094
C1096094
A2294135
SDUI
Mandibular prosthesis user
SIB
Walking aid user
SDUI
A1961456
C0919792
C0438224
A1011347
SDUI
Neutrophil count normal
SIB
Metamyelocyte count
SDUI
A1001350
C0455285
C0455285
A1001350
SDUI
Metamyelocyte count
SIB
Neutrophil count normal
SDUI
A1011347
C0438224
C0438238
A0891370
SDUI
Cardiac enzymes normal
SIB
Alpha hydroxybutyrate dehydrogenase decreased
SDUI
A1959793
C0919760
C0919760
A1959793
SDUI
Alpha hydroxybutyrate dehydrogenase decreased
SIB
Cardiac enzymes normal
SDUI
A0891370
C0438238
C0005741
A0031413
SDUI
Blepharitis
SIB
Eczema infantile
SDUI
A1597129
C0086196
C0086196
A1597129
SDUI
Eczema infantile
SIB
Blepharitis
SDUI
A0031413
C0005741
C0580550
A2850385
SDUI
Lymphocyte count abnormal
SIB
Neutrophil percentage abnormal
SDUI
A2397847
C1141945
C1141945
A2397847
SDUI
Neutrophil percentage abnormal
SIB
Lymphocyte count abnormal
SDUI
A2850385
C0580550
RQ (return to top)
CUI1
AUI1
STYPE1
STR
REL
RELA
STR
STYPE2
AUI2
CUI2
C0019699
A1602156
AUI
HTLV III test positive
RQ
classifies
HIV test positive
AUI
A1602067
C0019699
C0019699
A1602067
AUI
HIV test positive
RQ
classified_as
HTLV III test positive
AUI
A1602156
C0019699
C0852873
A1607310
AUI
Skin or subcutaneous tissue suture
RQ
classifies
Suture insertion
AUI
A2019049
C0948455
C0948455
A2019049
AUI
Suture insertion
RQ
classified_as
Skin or subcutaneous tissue suture
AUI
A1607310
C0852873
C0235801
A1592444
AUI
Congenital jaw malformation NOS
RQ
classifies
Congenital jaw malformation
AUI
A2851567
C0235801
C0235801
A2851567
AUI
Congenital jaw malformation
RQ
classified_as
Congenital jaw malformation NOS
AUI
A1592444
C0235801
C0004063
A9459623
AUI
Assault
RQ
classifies
Physical assault
AUI
A1581473
C0740319
C0740319
A1581473
AUI
Physical assault
RQ
classified_as
Assault
AUI
A9459623
C0004063
C0855716
A1576239
AUI
Visual acuity tests near
RQ
classifies
Visual acuity tests near
AUI
A1576240
C0855716
C0855716
A1576240
AUI
Visual acuity tests near
RQ
classified_as
Visual acuity tests near
AUI
A1576239
C0855716
RO (return to top)
CUI1
AUI1
STYPE1
STR
REL
RELA
STR
STYPE2
AUI2
CUI2
C0161313
A1580471
CODE
Deep necro of under tiss due to burn (dtd) of thigh (any part), with loss of thigh
RO
has_member
Accidents and injuries (SMQ)
CODE
A13075211
C1964004
C1964004
A13075211
CODE
Accidents and injuries (SMQ)
RO
member_of_cluster
Deep necro of under tiss due to burn (dtd) of thigh (any part), with loss of thigh
CODE
A1580471
C0161313
C0521277
A1598133
CODE
Intracerebral haematoma evacuation NOS
RO
has_member
Haemorrhage terms (excl laboratory terms) (SMQ)
CODE
A12057522
C1869102
C1869102
A12057522
CODE
Haemorrhage terms (excl laboratory terms) (SMQ)
RO
member_of_cluster
Intracerebral haematoma evacuation NOS
CODE
A1598133
C0521277
C0026850
A2849723
CODE
Muscular dystrophy
RO
has_member
Congenital, familial and genetic disorders (SMQ)
CODE
A12056630
C1869073
C1869073
A12056630
CODE
Congenital, familial and genetic disorders (SMQ)
RO
member_of_cluster
Muscular dystrophy
CODE
A2849723
C0026850
C1442835
A0584127
CODE
Solar dermatitis
RO
has_member
Systemic lupus erythematosus (SMQ)
CODE
A12056625
C1869047
C1869047
A12056625
CODE
Systemic lupus erythematosus (SMQ)
RO
member_of_cluster
Solar dermatitis
CODE
A0584127
C1442835
C0221170
A1606322
CODE
Stiffness muscle
RO
has_member
Noninfectious encephalitis (SMQ)
CODE
A13075524
C1964001
C1964001
A13075524
CODE
Noninfectious encephalitis (SMQ)
RO
member_of_cluster
Stiffness muscle
CODE
A1606322
C0221170
PAR (return to top)
CUI1
AUI1
STYPE1
STR
REL
STR
STYPE2
AUI2
CUI2
C0266011
A0585876
SDUI
Supernumerary nipple
PAR
Breast disorders congenital
SDUI
A1586269
C0852100
C0852100
A1586269
SDUI
Breast disorders congenital
CHD
Supernumerary nipple
SDUI
A0585876
C0266011
C0035869
A13074460
SDUI
Rotavirus infection
PAR
Rotaviral infections
SDUI
A1603709
C0851902
C0851902
A1603709
SDUI
Rotaviral infections
CHD
Rotavirus infection
SDUI
A13074460
C0035869
C0855152
A2850688
SDUI
Primary mediastinal large B-cell lymphoma
PAR
Primary mediastinal large B-cell lymphomas
SDUI
A2019574
C0855152
C0855152
A2019574
SDUI
Primary mediastinal large B-cell lymphomas
CHD
Primary mediastinal large B-cell lymphoma
SDUI
A2850688
C0855152
C0948507
A2016155
SDUI
Brachytherapy to liver
PAR
Hepatobiliary radiotherapies
SDUI
A2017371
C0947957
C0947957
A2017371
SDUI
Hepatobiliary radiotherapies
CHD
Brachytherapy to liver
SDUI
A2016155
C0948507
C1095924
A2293644
SDUI
Fontanelle depressed
PAR
Neonatal neurological system disorders NEC
SDUI
A2309210
C1112723
C1112723
A2309210
SDUI
Neonatal neurological system disorders NEC
CHD
Fontanelle depressed
SDUI
A2293644
C1095924
RQ (return to top)
CUI1
AUI1
STYPE1
STR
REL
RELA
STR
STYPE2
AUI2
CUI2
C0863153
A0007055
AUI
Bilirubinuria
RQ
mapped_from
BILIRUBINURIA
CODE
A0393027
C0005443
C0005443
A0393027
CODE
BILIRUBINURIA
RQ
mapped_to
Bilirubinuria
AUI
A0007055
C0863153
C0013537
A0052542
AUI
Eclampsia
RQ
mapped_from
ECLAMPSIA
CODE
A0408400
C0013537
C0013537
A0408400
CODE
ECLAMPSIA
RQ
mapped_to
Eclampsia
AUI
A0052542
C0013537
C0157334
A0280238
AUI
Vulvar and perineal hematoma, with delivery
RQ
mapped_from
Vulvar and perineal hematoma, with delivery
CODE
A8347021
C0157334
C0157334
A8347021
CODE
Vulvar and perineal hematoma, with delivery
RQ
mapped_to
Vulvar and perineal hematoma, with delivery
AUI
A0280238
C0157334
C1691228
A0682417
AUI
Cystic kidney disease, unspecified
RQ
mapped_from
Cystic kidney disease, unspecified
CODE
A8358998
C0311245
C0311245
A8358998
CODE
Cystic kidney disease, unspecified
RQ
mapped_to
Cystic kidney disease, unspecified
AUI
A0682417
C1691228
C0549254
A1577515
AUI
Agitation aggravated
RQ
mapped_from
AGITATION
CODE
A0385737
C0085631
C0085631
A0385737
CODE
AGITATION
RQ
mapped_to
Agitation aggravated
AUI
A1577515
C0549254
PAR (return to top)
CUI1
AUI1
STYPE1
STR
REL
STR
STYPE2
AUI2
CUI2
C0004936
A1596183
SDUI
Psychiatric disorders
PAR
MedDRA
AUI
A1605890
C1140263
C1140263
A1605890
AUI
MedDRA
CHD
Psychiatric disorders
SDUI
A1596183
C0004936
C0851366
A1586304
SDUI
Reproductive system and breast disorders
PAR
MedDRA
AUI
A1605890
C1140263
C1140263
A1605890
AUI
MedDRA
CHD
Reproductive system and breast disorders
SDUI
A1586304
C0851366
C0263660
A2018017
SDUI
Musculoskeletal and connective tissue disorders
PAR
MedDRA
AUI
A1605890
C1140263
C1140263
A1605890
AUI
MedDRA
CHD
Musculoskeletal and connective tissue disorders
SDUI
A2018017
C0263660
C0947733
A2017507
SDUI
Injury, poisoning and procedural complications
PAR
MedDRA
AUI
A1605890
C1140263
C1140263
A1605890
AUI
MedDRA
CHD
Injury, poisoning and procedural complications
SDUI
A2017507
C0947733
C0018799
A1588768
SDUI
Cardiac disorders
PAR
MedDRA
AUI
A1605890
C1140263
C1140263
A1605890
AUI
MedDRA
CHD
Cardiac disorders
SDUI
A1588768
C0018799