Iowa Code § 230.9
If, after a person has been received by a state hospital for persons with mental illness as a state case patient whose residence is supposed to be outside this state, the administrator determines that the residence of the person was, at the time of admission or commitment, in a county of this state, the administrator shall certify the determination and charge all legal costs and expenses pertaining to the admission or commitment and support of the person to the county of residence. The certification shall be sent to the county of residence. The certification shall be accompanied by a copy of the evidence supporting the determination. The costs and expenses shall be collected as provided by law in other cases. If the person’s residency status has been determined in accordance with section 331.394, the legal costs and expenses shall be charged to the county of residence or as a state case in accordance with that determination.
[S13, §2727-a28a; C24, 27, 31, 35, 39, §3589; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §230.9] 96 Acts, ch 1129, §113; 2004 Acts, ch 1090, §49; 2012 Acts, ch 1120, §113, 130