The NHLPA said Tootoo, 27, will continue to receive his salary and benefits without penalty as long as he complies with the program's treatment and follow-up care, Toronto's National Post reported.
The union said Tootoo's care will be coordinated by program doctors Brian Shaw of the NHLPA and Dave Lewis of the NHL.
The Predators' right winger has scored four goals and notched six assists in 32 games this season.
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