raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:325

Congenital factor II deficiency

Synonyms: Dysprothrombinemia · Hypoprothrombinemia · Prothrombin deficiency

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
All ages
Status
active

A rare inherited bleeding disorder due to reduced activity of factor II (FII, prothrombin) and characterized by mucocutaneous and soft tissue bleeding symptoms.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCongenital factor II deficiencyDysprothrombinemia · Hypoprothrombinemia · Prothrombin deficiency
frDéficit congénital en facteur IIDysprothrombinémie · Déficit en prothrombine · Hypoprothrombinémie
deFaktor II-Mangel, kongenitalerDysprothrombinämie · Hypoprothrombinämie · Prothrombin-Mangel
esDeficiencia congénita del factor II
itDeficit congenito del fattore IIDeficit di protrombina · Disprotrombinemia · Ipoprotrombinemia
nlCongenitale factor II-deficiëntieCongenitale factor 2-deficiëntie · Dysprotrombinemie · Hypoprotrombinemie · Protrombinedeficiëntie
ptDeficiência de fator II congénitaDeficiência de protrombina · Disprotrombinemia · Hipoprotrombinemia
plWrodzony Niedobór czynnika IIDysprotrombinemia · Hipoprothrombinemia · Niedobór protrombiny
csVrozený deficit faktoru IIDysprotrombinémie · Hypoprotrombinémie · Deficit protrombinu
ukВроджений дефіцит фактора IIДиспротромбінемія · Гіпопротромбінемія · Дефіцит протромбіну
zh先天性II因子缺乏症凝血酶原缺乏
trDoğumsal faktör II eksikliğiDisprotrombinemi · Hipoprotrombinemi · Protrombin eksikliği

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM613679Evalidated
ICD-10D68.2NTBTattributedvalidated
ICD-113B14.ZNTBTindexvalidated
MONDO0013361Evalidated
UMLSC0272317Evalidated
GARD2926Evalidated
MedDRA10016076Evalidated

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
F2Disease-causing germline mutation(s) inAssessedHGNC:3535ENSG0000018021017693011p11.2coagulation factor II, thrombin25242243[PMID]_23852823[PMID]_20301327[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 0000.05 / 100 000EuropeValue and classValidated10595621[PMID]

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

21 annotations · validated 2019-05-14
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003645Prolonged partial thromboplastin time
HP:0008151Prolonged prothrombin time
HP:0040250Reduced prothrombin antigenDiagnostic criterion
Frequent (79-30%)
HP:0001892Abnormal bleeding
HP:0000421Epistaxis
HP:0002170Intracranial hemorrhage
HP:0005261Joint hemorrhage
Occasional (29-5%)
HP:0011884Abnormal umbilical stump bleeding
HP:0001903Anemia
HP:0012541Cephalohematoma
HP:0030138Excessive bleeding from superficial cuts
HP:0012233Intramuscular hematoma
HP:0000132Menorrhagia
HP:0002907Microscopic hematuria
HP:0030140Oral cavity bleeding
HP:0011891Post-partum hemorrhage
HP:0006298Prolonged bleeding after dental extraction
HP:0030137Prolonged bleeding following circumcision
HP:0011890Prolonged bleeding following procedure
Excluded (0%)
HP:0004420Arterial thrombosis
HP:0004936Venous thrombosis

Run the differential on the 3 obligate / very frequent terms

Annotation source: 28222949[PMID]_23190616[PMID]_19412729[PMID]_28762299[PMID]_7740448[PMID]_14489469[PMID]

7

Sources for this card