Is there anyone out there who is currently billing for a RD billing in 1/2 units when the encounter doesn't meet the second or third full 15 minutes? For example, the visit would last 40 minutes, which is over the 30 minute visit, (2units) and additionally 8 minutes over the CPT guidelines of 15 minutes of face to face time, thus allowing for an additional 1/2 unit. I have a RD who is asking if this is a billable situation, but I can't find anything in my research. I am hesitant to bill out in this manner. Any thoughts are greatly appreciated.