3B11.0 Haemophilia B
International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01
Haemophilia B is a form of haemophilia characterised by spontaneous or prolonged haemorrhages due to factor IX deficiency. Depending on the extent of the factor IX deficiency, it can be severe (biological activity of factor IX below 1%), moderately severe (activity of factor IX between 1% and 5%), or mild (activity of factor IX between 5 and 40%).
inclusions
- PTC - [plasma thromboplastin component] deficiency
- Severe haemophilia B
- Moderately severe haemophilia B
- Mild haemophilia B
- Symptomatic form of haemophilia B in female carriers
postcoordination
Add Stem and/or Extension codes to form a cluster code which adds detail to the condition.
Has severity - only one may be selected
synonyms
- Haemophilia B
- Christmas disease
- plasma thromboplastin component deficiency
- deficiency of functional factor ix
- sex-linked factor IX deficiency disease
- PTC - [plasma thromboplastin component] deficiency
- functional factor IX deficiency
- Severe haemophilia B
- Moderately severe haemophilia B
- Mild haemophilia B
- Symptomatic form of haemophilia B in female carriers
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