A63Other predominantly sexually transmitted diseases, not elsewhere classified

A63 is the ICD-10-CM diagnosis code for other predominantly sexually transmitted diseases, not elsewhere classified. It belongs to block A50-A64 (infections with a predominantly sexual mode of transmission) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: A63.0 (warts) and A63.8 (diseases).

The conditions in its Excludes2 note aren't part of A63, but may be coded alongside it if the patient has both: molluscum contagiosum (B08.1) and papilloma of cervix (D26.0).

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