Moderately Severe Hemophilia B C5679575
Hemophilia B is a genetic bleeding disorder resulting from deficiency of clotting factor IX. This X-linked condition mostly affects males, causing excessive bleeding and joint problems. Treatment involves regular factor IX replacement to prevent and manage bleeding.
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.
Warning signs - seek immediate care
Hemarthrosis
Intracranial hemorrhage
Generalized symptoms
(hematologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Spontaneous bruising
(hematologic)Prolonged mucosal bleeding
(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
Factor IX replacement therapy
Intravenous administration of recombinant or plasma-derived Factor IX concentrate for bleeding prevention or treatment. Longer half-life than Factor VIII allows for less frequent dosing.
Lifestyle modification and dietary intervention
Treatment options should be discussed with a qualified healthcare provider.
Prophylactic factor replacement schedule
Regular scheduled infusions to maintain minimum factor trough levels and prevent spontaneous bleeding episodes, improving long-term joint outcomes.
Additional treatment options
Safe activity modification program
Structured guidance on appropriate physical activities that maintain fitness while minimizing bleeding risk. Includes recommended exercises like swimming and cycling.
lifestyleMusculoskeletal rehabilitation
Comprehensive program addressing existing joint damage through targeted exercises, manual therapy, and functional training to maximize mobility and reduce pain.
physical_therapyAnnual comprehensive examination
Thorough yearly assessment including factor levels, inhibitor status, joint imaging, and functional evaluation to guide treatment adjustments and prevent complications.
monitoringWhen 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 Moderately Severe Hemophilia B C5679575?
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.
Srivastava A, Santagostino E, Dougall A, et al. WFH Guidelines for the Management of Hemophilia. Haemophilia. 2020.
Miesbach W, Lubetsky A, Kajiwara M, et al. Long-term efficacy and safety of extended half-life FIX prophylaxis in moderate hemophilia B patients. Blood Advances. 2022.
Peyvandi F, Garagiola I, Young G. The Hemophilias: From Genes to Gene Therapy. New England Journal of Medicine. 2021.
Bernardo ME, Aiuti A. Gene Therapy for Inherited Immunodeficiency and Hemophilia. Hematology. 2019.
Medication Comparisons
Compare medications used to treat Moderately Severe Hemophilia B C5679575. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy