raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:483

Congenital high-molecular-weight kininogen deficiency

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Adult, Childhood
Status
active

A rare genetic hematologic disease characterized by abnormal surface-mediated activation of fibrinolysis due to the deficiency of high-molecular-weight kininogen in plasma. Activated partial thromboplastin time (aPTT) may be prolonged. Clinically, patients are typically asymptomatic and do not show increased bleeding or thrombotic tendency.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCongenital high-molecular-weight kininogen deficiency
frDéficit congénital en kininogène de haut poids moléculaire
deHigh-Molecular-Weight Kininogen-Mangel, kongenitalerFitzgerald-Faktor-Mangel · HMWK-Defizienz · Hereditärer Mangel an hochmolekularem Kininogen
esDeficiencia congénita de quininógeno de alto peso molecular
itDeficit congenito di chininogeno ad alto peso molecolare
nlCongenitale deficiëntie van hoogmoleculair kininogeen
ptDeficiência de quininogénio de alto peso molecular congénita
plWrodzony Niedobór kininogenu wielkocząsteczkowego
csVrozený deficit vysokomolekulárního kininogenu
ukВроджений дефіцит високомолекулярного кініногену
zh先天性高分子量激肽原缺乏症
trDoğumsal yüksek moleküler ağırlıklı kininojen eksikliği

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM228960Evalidated
ICD-10D68.8NTBTattributedvalidated
ICD-113B15NTBTindexvalidated
MONDO0009234Evalidated
UMLSC0272340Evalidated
GARD2684Evalidated

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 (1):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
KNG1Disease-causing germline mutation(s) inAssessedHGNC:6383ENSG000001138896123583q27.3kininogen 117522339[PMID]
5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card