Abnormality of coagulation Abnormality of the coagulation cascade SNOMEDCT_US:64779008 UMLS:C0005779 Coagulopathy An abnormality of the coagulation cascade, which is comprised of the contact activation pathway (also known as the intrinsic pathway) and the tissue factor pathway (also known as the extrinsic pathway) as well as cofactors and regulators. HP:0003256 SNOMEDCT_US:362970003 HP:0001925