Iowa R. Civ. P. 1.237
As amended through September 9, 2024
An action heretofore cognizable only after another has been prosecuted to conclusion may be joined with the latter; and the court shall grant relief according to the substantive rights of the parties. But there shall be no joinder of an action against an indemnitor or insurer with one against the indemnified party, unless a statute so provides.
Iowa. R. Civ. P. 1.237