Description of the disease * EnglishPolish Pobierz sekcję do PDF Definition A severe form of hemophilia B characterized by a large deficiency of factor IX (biological activity <1 IU/dL) leading to frequent spontaneous hemorrhage and abnormal bleeding as a result of minor injuries or following trauma, surgery or tooth extraction. It primarily affects males but may also be observed in female carriers of disease-causing mutations. Disease data Classification Clinical subtype Synonyms Severe congenital F9 deficiency Ciężki Niedobór czynnika IX Severe congenital factor IX deficiency ORPHA code 169793 OMIM code 306900 ICD10 code D67 ICD11 code 3B11.0 *Soruce Extended description of the disease Pobierz sekcję do PDF No additional description. Orphanet - interntowa baza danych dotyczących rzadkich chorób i sierochych leków. ©INSERM 1999 - Dostępna na stronie www.orphanet.pl