This is the basic info I can find online:
This seems pretty straightforward. However, my wife is telling me that certain surgeries, treatments and long term illnesses don't received coverage. I can't find any English sites with information any more detailed that what I quoted above. My Japanese isn't that bad, but navigating insurance/medical coverage sites in Japanese is still a little beyond me.Coverage
The insurance covers 70% of all medical expenses (you pay 30% of expenses)
Medical checkups, vaccinations, childbirth, plastic surgery (including dental beautification),etc
Medical treatment for illness or injury suffered at work or on the way to work
A big thank you for any information you may be able to provide.