Sec. 4.5. (a) As used in this chapter, "Indiana governmental entity" means:
(1) the state (as defined in IC 5-11-1-16(b));
(2) a state educational institution (as defined in IC 21-7-13-32);
(3) a political subdivision (as defined in IC 36-1-2-13); or
(4) a public school corporation (as defined in IC 4-4-38.5-6.2).
(b) The term does not include the following:
(1) A state institution (as defined in IC 12-7-2-184).
(2) A hospital organized or operated under IC 16-22-1 through IC 16-22-5, IC 16-22-8, or IC 16-23-1.