In this chapter:
(1) "Commission" means the Health and Human Services Commission.
(2) "Department" means the Department of Assistive and Rehabilitative Services.
(3) "Developmental delay" means a significant variation in normal development as measured by appropriate diagnostic instruments and procedures, in one or more of the following areas:
(A) cognitive development;
(B) physical development;
(C) communication development;
(D) social or emotional development; or
(E) adaptive development.
(4) "Executive commissioner" means the executive commissioner of the Health and Human Services Commission.