The juvenile court has exclusive original jurisdiction in proceedings concerning a minor for whom an application is filed under section 125.75 . In proceedings under this subchapter concerning a minor’s involuntary commitment or treatment, the term “court” , “judge” , or “clerk” means the juvenile court, judge, or clerk. 89 Acts, ch 283, §1 ; 92 Acts, ch 1124, §1 ; 2013 Acts, ch 130, §38 ; 2017 Acts, ch 54, §76 Referred to in §229.21