Indiana Code Title 20. Education § 20-34-7-5

Sec. 5. (a) A student athlete who has been removed from play under section 4 of this chapter may not return to play until:

(b) A licensed health care provider who evaluates a student athlete under subsection (a) may conduct the evaluation as a volunteer.  A volunteer health care provider who in good faith and gratuitously authorizes a student athlete to return to play is not liable for civil damages resulting from an act or omission in the rendering of an evaluation, except for acts or omissions that constitute gross negligence or willful or wanton misconduct.