Sec. 3. (a) As used in this chapter, "expulsion" means a disciplinary or other action whereby a student:
(1) is separated from school attendance for a period exceeding ten (10) school days;
(2) is separated from school attendance for the balance of the current semester or current year unless a student is permitted to complete required examinations in order to receive credit for courses taken in the current semester or current year; or
(3) is separated from school attendance for the period prescribed under section 16 of this chapter, which may include an assignment to attend an alternative school, an alternative educational program, or a homebound educational program.
(b) The term does not include situations when a student is:
(1) disciplined under section 25 of this chapter;
(2) removed from school in accordance with IC 20-34-3-9; or
(3) removed from school for failure to comply with the immunization requirements of IC 20-34-4-5.