I77.7Other arterial dissection

I77.7 is the ICD-10-CM diagnosis code for other arterial dissection. It belongs to category I77 (other disorders of arteries and arterioles), 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 9 subcodes must be used instead.

Within I77, choose I77.7 (Other arterial dissection) only when documentation doesn't support a more specific option: arteriovenous fistula, acquired (I77.0), stricture of artery (I77.1), rupture of artery (I77.2), arterial fibromuscular dysplasia (I77.3), celiac artery compression syndrome (I77.4), necrosis of artery (I77.5), arteritis, unspecified (I77.6), other specified disorders of arteries and arterioles (I77.8) and 1 more.

To report this condition, pick the subcode that matches the documentation: I77.70 (artery), I77.71 (artery), I77.72 (artery), I77.73 (artery), I77.74 (artery), I77.75 (arteries), I77.76 (extremity), I77.77 (extremity) and 1 more.

The conditions in its Excludes2 note aren't part of I77.7, but may be coded alongside it if the patient has both: dissection of aorta (I71.0-) and dissection of coronary artery (I25.42).

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