Acquired Hemophilia B C0398609
A very rare condition where the immune system mistakenly produces antibodies against Factor IX, impairing the blood's ability to clot properly. It typically occurs in adults and can lead to serious bleeding problems. Management includes immune suppression and clotting factor replacement or bypassing agents.
Key facts at a glance
- ICD-10
- D68.311
- ICD-11
- 3A00.0
- Body system
- hematologic
- Severity
- severe
- Chronic
- true
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy