232.3  Concurrent court proceedings.
  1.  During the pendency of an action under this chapter, a party to the action is estopped from litigating concurrently the custody, guardianship, or placement of a child who is the subject of the action, in a court other than the juvenile court. A district judge, district associate judge, magistrate, or judicial hospitalization referee, upon notice of the pendency of an action under this chapter, shall not issue an order, finding, or decision relating to the custody, guardianship, or placement of the child who is the subject of the action, under any law, including but not limited to chapter 232D, 598, 598B, or 633.
  2.  The juvenile court with jurisdiction of the pending action under this chapter, however, may, upon the request of a party to the action or on its own motion, authorize the party to litigate concurrently in another court a specific issue relating to the custody, guardianship, or placement of the child who is the subject of the action. Before authorizing a party to litigate a specific issue in another court, the juvenile court shall give all parties to the action an opportunity to be heard on the proposed authorization. The juvenile court may request but shall not require another court to exercise jurisdiction and adjudicate a specific issue relating to the custody, guardianship, or placement of the child.
83 Acts, ch 21, §2; 83 Acts, ch 186, §10056, 10201; 99 Acts, ch 103, §42; 2022 Acts, ch 1098, §15