Indiana Code Title 22. Labor and Safety § 22-3-4-5

Sec. 5. (a) If the employer and the injured employee or the injured employee's dependents disagree in regard to the compensation payable under IC 22-3-2 through IC 22-3-6 or, if they have reached such an agreement, which has been signed by them, filed with and approved by the worker's compensation board, and afterward disagree as to the continuance of payments under such agreement, or as to the period for which payments shall be made, or to the amount to be paid, because of a change in conditions since the making of such agreement, either party may then make an application to the board for the determination of the matters in dispute.

(b) Upon the filing of such application, the board shall set the date of hearing, which shall be as early as practicable, and shall notify the employee, employer, and attorneys of record in the manner prescribed by the board of the time and place of all hearings and requests for continuances.  The hearing of all claims for compensation, on account of injuries occurring within the state, shall be held in the county in which the injury occurred, in any adjoining county, except when the parties consent to a hearing elsewhere.  Claims assigned to an individual board member that are considered to be of an emergency nature by that board member, may be heard in any county within the board member's jurisdiction.

(c) All disputes arising under IC 22-3-2 through IC 22-3-6, if not settled by the agreement of the parties interested therein, with the approval of the board, shall be determined by the board.