The process in which a cell becomes capable of differentiating autonomously into a intermediate mesoderm cell regardless of its environment; upon determination, the cell fate cannot be reversed.
intermediate mesodermal cell fate specification +
lateral mesodermal cell fate determination +
negative regulation of mesodermal cell fate determination +
paraxial mesodermal cell fate determination +
positive regulation of mesodermal cell fate determination +
regulation of mesodermal cell fate determination +