Iowa R. Civ. P. 1.223
As amended through Septmber 9, 2024
If, during pendency of an action, a party is adjudged incompetent or confined in any state hospital for the mentally ill or if the party's physician certifies to the court that the party appears to be mentally incapable of acting in the party's own behalf, the conservator or guardian shall be joined or if there is none, the court shall appoint a guardian ad litem for the party.
Iowa. R. Civ. P. 1.223