ST. PAUL — More changes may be coming to Minnesota’s medical marijuana program.

The Minnesota’s Department of Health was expected to announce Thursday whether it would expand the program to people suffering post-traumatic stress disorder, autism, arthritis and others. The health commissioner is reviewing public petitions for nine potential new conditions total.

The possible expansion comes a year after Commissioner Ed Ehlinger decided to add intractable pain as a qualifying condition. That addition drastically increased the patient pool in the struggling program.