Sec. 3. (a) As used in this chapter, "biomarker" means a characteristic that is objectively measured and evaluated as an indicator of:
(1) normal biological processes;
(2) pathogenic processes; or
(3) pharmacologic responses to a specific therapeutic intervention, including known gene-drug interactions for medications being considered for use or already being administered.
(b) The term includes gene mutations, characteristics of genes, and protein expression.