raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:98879

Hemophilia B

Synonyms: Congenital F9 deficiency · Congenital factor IX deficiency · Christmas disease

Type
Disease
Group
Disorder
Inheritance
X-linked recessive
Age of onset
Childhood, Infancy, Neonatal
Status
active

A rare hematological disorder characterized by spontaneous or prolonged hemorrhages due to factor IX deficiency.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enHemophilia BCongenital F9 deficiency · Congenital factor IX deficiency · Christmas disease
frHémophilie BDéficit congénital en F9 · Déficit congénital en facteur IX · Maladie de Christmas
deHämophilie BAngeborener F9-Mangel · Faktor-IX-Mangel, kongenitaler · Christmas-Krankheit
esHemofilia BDeficiencia congénita de F9 · Deficiencia congénita de factor IX · Enfermedad de Navidad
itEmofilia BDeficit congenito del fattore IX · Deficit congenito di F9 · Malattia di Christmas
nlHemofilie BCongenitale F9-deficiëntie · Congenitale deficiëntie van factor IX · Ziekte van Christmas
ptHemofilia BDeficiência congénita de F9 · Deficiência congénita de factor IX · Doença Christmas
plHemofilia BChoroba Christmasa · Niedobór czynnika IX
csHemofilie BChristmasova nemoc · Deficit faktoru IX
ukГемофілія ВХвороба Крістмаса · Вроджений дефіцит F9 · Вроджений дефіцит фактора IX
zh血友病BIX因子缺乏症
trHemofili BChristmas hastalığı · Faktör IX eksikliği

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM300807BTNTvalidated
OMIM306900BTNTvalidated
ICD-10D67Especificvalidated
ICD-113B11.0Especificvalidated
MONDO0010604Evalidated
MeSHD002836Evalidated
UMLSC0008533Evalidated
GARD8732Evalidated
MedDRA10010467Evalidated

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):

Children (5):

4

Genes

0 direct · 4 via subtypes

Orphanet records no gene directly on this code.

Recorded by Orphanet on subtypes of this disorder:

GeneSubtypeAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
F9ORPHA:169793Severe hemophilia BDisease-causing germline mutation(s) inAssessedHGNC:3551ENSG00000101981300746Xq27.1coagulation factor IX
F9ORPHA:169796Moderate hemophilia BDisease-causing germline mutation(s) inAssessedHGNC:3551ENSG00000101981300746Xq27.1coagulation factor IX
F9ORPHA:169799Mild hemophilia BDisease-causing germline mutation(s) inAssessedHGNC:3551ENSG00000101981300746Xq27.1coagulation factor IX
F9ORPHA:177929Bleeding disorder in hemophilia B carriersDisease-causing germline mutation(s) inAssessedHGNC:3551ENSG00000101981300746Xq27.1coagulation factor IX
5

Prevalence and incidence

101 records
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 100 0003 / 100 000EuropeValue and classValidated21649801[PMID]_European Medicines Agency 2018[OTHER]
Point prevalence1-9 / 100 0001 / 100 000AlbaniaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.44 / 100 000AlgeriaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.54 / 100 000ArgentinaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.2 / 100 000ArmeniaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.665 / 100 000AustriaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.16 / 100 000AzerbaijanValue and classValidated21649801[PMID]
Point prevalence<1 / 1 000 0000.015 / 100 000BangladeshValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.84 / 100 000BelarusValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0001.32 / 100 000BelgiumValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0001.155 / 100 000BelizeValue and classValidated21649801[PMID]
Point prevalence<1 / 1 000 0000.045 / 100 000BoliviaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.265 / 100 000Bosnia and HerzegovinaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.535 / 100 000BrazilValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.775 / 100 000BulgariaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.795 / 100 000ChileValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.405 / 100 000ColombiaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.645 / 100 000Costa ricaValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0001.625 / 100 000CroatiaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.49 / 100 000CubaValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0003.195 / 100 000CyprusValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0001.045 / 100 000Czech RepublicValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0001.56 / 100 000DenmarkValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.165 / 100 000Dominican RepublicValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.25 / 100 000EcuadorValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.955 / 100 000EgyptValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.31 / 100 000El SalvadorValue and classValidated21649801[PMID]
Point prevalence<1 / 1 000 0000.065 / 100 000EritreaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.24 / 100 000EstoniaValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0001.235 / 100 000FinlandValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.5 / 100 000GeorgiaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.885 / 100 000GermanyValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0001.075 / 100 000GreeceValue and classValidated21649801[PMID]
Point prevalence<1 / 1 000 0000.075 / 100 000GuatemalaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.17 / 100 000HondurasValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0002.115 / 100 000HungaryValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.695 / 100 000IcelandValue and classValidated21649801[PMID]
Point prevalence<1 / 1 000 0000.095 / 100 000IndiaValue and classValidated21649801[PMID]
Point prevalence<1 / 1 000 0000.01 / 100 000IndonesiaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.98 / 100 000Iran, Islamic Republic ofValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.545 / 100 000IraqValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0001.06 / 100 000ItalyValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.495 / 100 000Korea, Republic ofValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.76 / 100 000LatviaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.57 / 100 000LithuaniaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.235 / 100 000LuxembourgValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0003.205 / 100 000North MacedoniaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.5 / 100 000MalaysiaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.77 / 100 000MaltaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.29 / 100 000MexicoValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.37 / 100 000Moldova, Republic ofValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.15 / 100 000MongoliaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.2 / 100 000MoroccoValue and classValidated21649801[PMID]
Point prevalence<1 / 1 000 0000.065 / 100 000NepalValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0001.035 / 100 000NetherlandsValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0001.855 / 100 000New ZealandValue and classValidated21649801[PMID]
Point prevalence<1 / 1 000 0000.005 / 100 000NigeriaValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0001.975 / 100 000NorwayValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.24 / 100 000PakistanValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.84 / 100 000Palestinian Territory, occupiedValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.24 / 100 000PeruValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.1 / 100 000PhilippinesValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.85 / 100 000PolandValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.93 / 100 000PortugalValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0002.265 / 100 000QatarValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.73 / 100 000Russian FederationValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.15 / 100 000Saudi ArabiaValue and classValidated21649801[PMID]
Point prevalence<1 / 1 000 0000.04 / 100 000SenegalValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.715 / 100 000SerbiaValue and classValidated21649801[PMID]
Point prevalence<1 / 1 000 0000.045 / 100 000Sierra leoneValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.545 / 100 000SingaporeValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.995 / 100 000IsraelValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.32 / 100 000JamaicaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.745 / 100 000JordanValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.13 / 100 000KenyaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.33 / 100 000LebanonValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.33 / 100 000NicaraguaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.585 / 100 000PanamaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.375 / 100 000ParaguayValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.76 / 100 000RomaniaValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0001.28 / 100 000SlovakiaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.82 / 100 000SloveniaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.525 / 100 000South AfricaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.765 / 100 000SpainValue and classValidated21649801[PMID]
Point prevalence<1 / 1 000 0000.065 / 100 000Sri LankaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.115 / 100 000SudanValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0001.85 / 100 000SwedenValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0001.375 / 100 000SwitzerlandValue and classValidated21649801[PMID]
Point prevalence<1 / 1 000 0000.085 / 100 000ThailandValue and classValidated21649801[PMID]
Point prevalence<1 / 1 000 0000.02 / 100 000TogoValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.37 / 100 000TunisiaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.31 / 100 000TurkeyValue and classValidated21649801[PMID]
Point prevalence<1 / 1 000 0000.01 / 100 000UkraineValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0002.08 / 100 000United KingdomValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.36 / 100 000UruguayValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.285 / 100 000UzbekistanValue and classValidated21649801[PMID]
Point prevalence1-9 / 100 0001.18 / 100 000VenezuelaValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.14 / 100 000Viet NamValue and classValidated21649801[PMID]
Point prevalence1-9 / 1 000 0000.35 / 100 000ZimbabweValue and classValidated21649801[PMID]
Prevalence at birth1-9 / 100 0001.665 / 100 000WorldwideValue and classValidated20301668[PMID]
Point prevalence1-9 / 100 0002.44 / 100 000FranceValue and classValidatedORPHANET

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

14 annotations · validated 2017-07-05
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0012541Cephalohematoma
HP:0040232Delayed onset bleeding
HP:0000790Hematuria
HP:0002170Intracranial hemorrhage
HP:0012233Intramuscular hematoma
HP:0005261Joint hemorrhage
HP:0400008Menometrorrhagia
HP:0001058Poor wound healing
HP:0006298Prolonged bleeding after dental extraction
HP:0004846Prolonged bleeding after surgery
HP:0003010Prolonged bleeding time
HP:0003645Prolonged partial thromboplastin time
HP:0011858Reduced factor IX activity
HP:0004406Spontaneous, recurrent epistaxis

Run the differential on the 12 obligate / very frequent terms

Annotation source: 20301668[PMID]

7

Sources for this card