Hereditary factor IX deficiency

Definition

A disease caused by a genetically inherited X-linked recessive trait leading to a defective gene located on the X chromosome. This disease is characterised by low levels of the protein factor IX in the body leading to increased haemorrhaging and bruising due to clotting abnormalities. Confirmation is by identification of recessive trait by genetic testing.

3 subordinate codes

• 3B11.0Haemophilia B
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified

Nearby in Congenital or constitutional haemorrhagic condition

• 3B10Hereditary factor VIII deficiency
• 3B12Von Willebrand disease
• 3B13Haemophilia C
• 3B14Other inherited coagulation factor deficiency with bleeding tendency
• 3B15Inherited coagulation factor deficiency without bleeding tendency
• Congenital non-inherited haemorrhagic condition
• 4B4ZDiseases of the immune system, unspecified