Definition of sex and gender; birth certificates.

Defines "sex" and "gender" for the purposes of the Indiana Code. States that the definition of "sex" and "gender" are meant to be synonymous in the Indiana Code unless specifically defined otherwise and is clarifying language. Requires the bureau of motor vehicles and the Indiana department of health (state department) to update the definition of sex used by the agencies. Requires the state department to: (1) identify birth certificates issued with a change in sex classification by court order; (2) change the sex on the birth certificate back to the originating sex and reissue the birth certificate; and (3) void the superseded document.