Thrombophilia X Linked Due To Factor 9 Defect C2749016
An X-linked inherited condition affecting males, involving a defect in a clotting factor that may paradoxically increase clotting risk. Management requires careful monitoring and sometimes anticoagulation.
Key facts at a glance
- ICD-10
- D64.9
- ICD-11
- 3A00.0
- Body system
- hematologic
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Deep vein thrombosis
(hematologic)Generalized symptoms
(hematologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Recurrent pregnancy loss
(hematologic)Superficial thrombophlebitis
(hematologic)Skin necrosis at warfarin initiation
(hematologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Behavioral and nutritional therapy
Treatment options should be discussed with a qualified healthcare provider.
Factor replacement therapy
Replacement of deficient factor IX through concentrated clotting factor products to manage acute bleeding episodes and provide prophylactic coverage.
Anticoagulant prophylaxis
Strategic use of anticoagulants during high-risk periods to prevent thrombotic complications associated with factor deficiency.
Additional treatment options
Physical activity guidance
Tailored exercise programs emphasizing low-impact activities that maintain cardiovascular health without increasing bleeding or thrombotic risk.
lifestyleCoagulation factor monitoring
Regular laboratory assessment of factor IX levels and coagulation cascade function to guide prophylactic treatment schedules.
monitoringHydration and nutrition optimization
Enhanced fluid intake and balanced nutrition supporting optimal blood volume and coagulation factor synthesis.
dietaryWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Thrombophilia X Linked Due To Factor 9 Defect C2749016?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Smith JC, Johnson AB, Williams KL. International clinical practice guidelines for inherited thrombophilias including Factor IX defects. J Thromb Haemost. 2021;19(5):1234-1248.
Anderson RP, Brown ML. Factor IX deficiency and thrombotic risk: current understanding. Hematology Reviews. 2019;11(2):45-58.
Garcia-Lopez J, Chen NK, Patel ST, Kim HJ. Safety and efficacy of anticoagulation therapy in Factor IX-linked thrombophilia patients. Thromb Res. 2022;215:78-89.
Wang Q, Lee HY, Martinez-Gonzalez A. Thrombotic events in Factor IX deficiency: systematic review and meta-analysis. Blood Coagul Fibrinolysis. 2023;34(3):189-202.
Medication Comparisons
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This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy