If a patient has 4 visits with one OB practice, and then transfers to another OB practice for the remainder of her care + delivery/pp care, the delivering practice should split OB care at that point, correct? So Practice A would bill 59425, and Practice B would bill 59425 or 59426 according to total number of OB visits, and then bill 59410/59510 etc for delivery + pp care, correct? Same insurance carrier throughout the pregnancy. I have a co-worker who is pretty insistent that Practice B can bill a global OB code, but I've always done split billing in this situation.