I have a provider that wants to bill 2 units for 90834, for a 90 min session and also 2 units for a 2 hour session for 90847, different day. They both have a MUE of 1, so I would assume they would be denied by the payer if two units are billed. Would it be appropriate to to bill 90834, twice with a 59 modifier on one. Also instead of 90847-2 units, would it be appropriate to bill either 90834 or 90837 AND 90847 same day, since 90834 can include family member. Any thoughts on this?