Ind. Code § 22-3-9-11

Sec. 11. This chapter shall be construed as supplemental to all statutes in force on March 2, 1911, concerning employers and employees and shall repeal only such statutes as are in direct conflict with the provisions of this chapter. Nothing in this chapter shall be held to limit the duty or liability of employers or to impair the rights of their employees under the common law or any other statute existing on March 2, 1911, or to affect the prosecution of any proceeding or right of action pending on March 2, 1911.