Hi Alfonso. When the statute was written, PTSD was NOT one of the approved conditions. It was added after one of the subsequent medical advisory meetings. I would have to re-read the statute to see what the original conditions were, but I recall Epilepsy, MS, ALS, HIV/AIDS, cancer, and a few others. I would have to pull up the statute and too lazy to do so. Sooooo....without the PTSD and chronic pain.....how many patients would there be? Again, could look it up, but too lazy tonight! LOL