I74Arterial embolism and thrombosis

I74 is the ICD-10-CM diagnosis code for arterial embolism and thrombosis. It belongs to block I70-I79 (diseases of arteries, arterioles and capillaries) and chapter 9 (diseases of the circulatory system). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: I74.0 (aorta), I74.1 (aorta), I74.2 (extremities), I74.3 (extremities), I74.4 (unspecified), I74.5 (artery), I74.8 (arteries) and I74.9 (artery).

The conditions in its Excludes2 note aren't part of I74, but may be coded alongside it if the patient has both: atheroembolism (I75.-), basilar embolism and thrombosis (I63.0-I63.2, I65.1), carotid embolism and thrombosis (I63.0-I63.2, I65.2), cerebral embolism and thrombosis (I63.3-I63.5, I66.-) and 9 more.

Code first: embolism and thrombosis complicating abortion or ectopic or molar pregnancy (O00-O07, O08.2) and embolism and thrombosis complicating pregnancy, childbirth and the puerperium (O88.-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.