Hemophilia B M Cn043453
A form of hemophilia B caused by factor IX deficiency, a genetic bleeding disorder. It mainly affects males and is inherited through family genes. Treatment includes regular factor replacement to control bleeding risk.
Key facts at a glance
- ICD-10
- D64.9
- ICD-11
- 3A00.0
- Body system
- hematologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Intracranial hemorrhage
Generalized symptoms
(hematologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Spontaneous nosebleeds (epistaxis)
(ENT)Gum bleeding
(oral)Muscle hematoma
(musculoskeletal)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
Drug therapy and clinical monitoring
Active treatment with regular monitoring by a healthcare provider is recommended.
Factor IX Concentrate Prophylaxis
Regular intravenous infusions of factor IX concentrate to maintain baseline levels and prevent spontaneous bleeding events.
Emergency On-Demand Therapy
High-dose factor IX administration at first sign of bleeding or before surgical/dental procedures to achieve hemostasis.
Additional treatment options
Activity Modification Counseling
Guidance on appropriate physical activities that maintain fitness while minimizing trauma risk, emphasizing swimming, walking, and cycling over contact sports.
lifestyleComprehensive Care Team Follow-up
Regular assessment by hematology, orthopedics, physical therapy, and genetics specialists to manage complications and optimize quality of life.
monitoringImmune Tolerance Induction
For patients developing inhibitors, intensive factor IX exposure to eradicate inhibitor formation and restore treatment efficacy.
medicationWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Hemophilia B M Cn043453?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalMedication Comparisons
Compare medications used to treat Hemophilia B M Cn043453. 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