raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:277

T-B-NK- severe combined immunodeficiency due to adenosine deaminase deficiency

Synonyms: ADA deficiency · T-B-NK- SCID due to adenosine deaminase deficiency

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

Severe combined immunodeficiency (SCID) due to adenosine deaminase (ADA) deficiency is a form of SCID characterized by profound lymphopenia and very low immunoglobulin levels of all isotypes resulting in severe and recurrent opportunistic infections.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enT-B-NK- severe combined immunodeficiency due to adenosine deaminase deficiencyADA deficiency · T-B-NK- SCID due to adenosine deaminase deficiency
frDéficit immunitaire combiné sévère T-B-NK- par déficit en adénosine désaminaseDICS T-B-NK- par déficit en adénosine désaminase · Déficit en ADA · ICDS T-B-NK- par déficit en adénosine désaminase · Immunodéficience combinée sévère T-B-NK- par déficit en adénosine désaminase · SCID T-B-NK- par déficit en adénosine désaminase
deImmundefekt, kombinierter schwerer, T-B-NK-, durch Adenosin-Desaminase-MangelADA-Mangel · T-B-NK- SCID durch Adenosin-Desaminase-Defizienz
esInmunodeficiencia combinada grave T-B-NK- por deficiencia de adenosina desaminasaDeficiencia ADA · IDCG T-B-NK- por deficiencia de adenosina desaminasa · SCID T-B-NK- por deficiencia de adenosina desaminasa
itImmunodeficienza combinata grave T-B-NK- da deficit di adenosina deaminasiDeficit di ADA · SCID T-B-NK- da deficit di adenosina deaminasi
nlT-B-NK- ernstige gecombineerde immuundeficiëntie door deficiëntie van adenosinedeaminaseADA-deficiëntie · T-B-NK- SCID door deficiëntie van adenosinedeaminase
ptImunodeficiência combinada grave por deficiência de adenosina desaminaseDeficiência de ADA · Deficiência de adenosina desaminase
plCiężki złożony Niedobór odporności z powodu niedoboru deaminazy adenozynyNiedobór ADA · SCID z powodu niedoboru deaminazy adenozyny
csTěžká kombinovaná imunodeficience způsobená deficitem adenozin deaminázyDeficit ADA · SCID způsobená deficitem adenozin deaminázy
ukТяжкий комбінований імунодефіцит внаслідок дефіциту аденозиндезаміназиДефіцит АДА · SCID через дефіцит аденозиндезамінази
zh腺苷脱氨酶缺乏所致重症联合免疫缺陷病腺苷脱氨酶缺乏所致重症联合免疫缺陷病
trAdenozin deaminaz eksikliğine bağlı ağır kombine immün yetmezlikADA eksikliği · Adenozin deaminaz eksikliğine bağlı SCID

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM102700Evalidated
ICD-10D81.3Especificvalidated
ICD-114A01.10NTBTindexvalidated
MONDO0007064Evalidated
MeSHC531816Evalidated
UMLSC0392607Evalidated
GARD5748Evalidated
MedDRA10066367Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ADADisease-causing germline mutation(s) inAssessedHGNC:186ENSG0000019683960895820q13.12adenosine deaminase
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Prevalence at birth1-9 / 1 000 0000.3 / 100 000EuropeValue and classValidated20301656[PMID]_ ORPHANET_[EXPERT]
Point prevalence1-9 / 1 000 0000.2 / 100 000EuropeValue and classValidatedEuropean Medicines Agency[OTHER]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

20 annotations · validated 2017-11-08
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0005368Abnormality of humoral immunity
HP:0002849Absence of lymph node germinal center
HP:0030813Absent tonsils
HP:0012393Allergy
HP:0025379Anti-thyroid peroxidase antibody positivity
HP:0002960Autoimmunity
HP:0010976Decreased total B cell count
HP:0005403Decreased total T cell count
HP:0002014Diarrhea
HP:0001508Failure to thrive
HP:0003212Increased circulating IgE concentration
HP:0011123Inflammatory abnormality of the skin
HP:0005354Lack of T cell function
HP:0001888Lymphopenia
HP:0010444Pulmonary insufficiency
HP:0005390Recurrent opportunistic infections
HP:0000403Recurrent otitis media
HP:0006532Recurrent pneumonia
HP:0002788Recurrent upper respiratory tract infections
HP:0000246Sinusitis

Annotation source: 20301656[PMID]

7

Sources for this card