For implants, yes. It's a very complex issue. For example, if you were a cisgender woman who had breast cancer, and you wanted reconstructive surgery—you didn't just want the mastectomy, but implants to have reconstruction—that would be covered by your insurance plan. In some provinces, breast construction for trans women is covered, and in other provinces, it is not.
On May 7th, 2019. See this statement in context.