Atrial fibrillation. Choice of anticoagulant. February 15, 2017 Active substances: Rivaroxaban Warfarin ICD-10: IX.I30-I52.I49 Other disorders of the heart rhythm Warfarin, rivaroxaban, atrial fibrillation, atrial fibrillation. The material describes a rational approach to choosing an anticoagulant for atrial fibrillation.