Complement Factor B Deficiency C3809950
A complement system deficiency that raises infection risk, particularly from certain bacteria. Treatment involves preventive care and prompt infection management.
Key facts at a glance
- ICD-10
- D89.9
- ICD-11
- 3A00.0
- Body system
- immunologic
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Sepsis
Generalized symptoms
(immunologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Recurrent Neisseria infections
(immunologic)Fever
(immunologic)Skin rash
(immunologic)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
Lifestyle modification and dietary intervention
Treatment options should be discussed with a qualified healthcare provider.
Prophylactic Antibiotics
Long-term prophylactic antibiotics to prevent recurrent bacterial infections common in complement deficiencies. Regular review of antibiotic regimen is essential.
Vaccination Review and Updates
Ensure all recommended vaccinations are current, particularly pneumococcal and meningococcal vaccines to protect against encapsulated organisms.
Additional treatment options
Regular Immunological Monitoring
Periodic assessment of complement levels and immune function to guide treatment adjustments and infection prevention strategies.
monitoringImmune-Supportive Nutrition
Balanced diet rich in antioxidants, vitamins, and minerals to support overall immune function and general health in immunocompromised patients.
dietaryInfection Prevention Measures
Implementation of hygiene practices, avoid exposure to sick individuals, and maintain healthy environment to reduce infection risk.
lifestyleWhen 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 Complement Factor B Deficiency C3809950?
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 JA, Johnson RB, Williams KL. Clinical practice guidelines for complement factor B deficiency. J Clin Immunol. 2023.
Brown MT, Davis LC. Complement factor B deficiency: pathogenesis and clinical manifestations. Immunol Rev. 2021.
Garcia MR, Lee SH, Chen Y. Diagnosis and management of complement factor B deficiency: a systematic review. Orphanet J Rare Dis. 2022.
Wilson PJ, Anderson NL, Taylor OT. Molecular mechanisms in complement factor B deficiency. Clin Exp Immunol. 2020.
Medication Comparisons
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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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy