O46: Antepartum haemorrhage, not elsewhere classified
O46.0: Antepartum haemorrhage with coagulation defect
When you bleed, after a while the blood usually clots by itself. Platelets and various clotting proteins in the blood are involved in blood clotting. The platelets can adhere to one another in such a way that they stop a bleed. The clotting proteins stabilize the platelets that have stuck together. This enables wounds to heal, for example. When you have a blood clotting disorder, you bleed more heavily or for longer than usual, for example.
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