Section 5815 Of Chapter 6. Findings And Awards From California Labor Code >> Division 4. >> Part 4. >> Chapter 6.

. Every order, decision or award, other than an order merely appointing a trustee or guardian, shall contain a determination of all issues presented for determination by the appeals board prior thereto and not theretofore determined. Any issue not so determined will be deemed decided adversely as to the party in whose interest such issue was raised.