I36Nonrheumatic tricuspid valve disorders

I36 is the ICD-10-CM diagnosis code for nonrheumatic tricuspid valve disorders. It belongs to block I30-I5A (other forms of heart disease) and chapter 9 (diseases of the circulatory system). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: I36.0 (stenosis), I36.1 (insufficiency), I36.2 (insufficiency), I36.8 (disorders) and I36.9 (unspecified).

Don't report I36 together with the conditions in its Excludes1 note: tricuspid valve disorders of unspecified cause (I07.-), tricuspid valve disorders specified as congenital (Q22.4, Q22.8, Q22.9), tricuspid valve disorders specified as rheumatic (I07.-) and tricuspid valve disorders with aortic and/or mitral valve involvement (I08.-).

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