You are correct. I mixed US with coalition casualties.
For the US, there are 380 hostile fire deaths and 169 non-combat deaths.
For the entire coalition, there have been 456 hostile fire deaths and 194 non-combat.
I remember when the media switched from reporting hostile fire deaths to all deaths when 500 was crossed. They decided that was a big enough number to start harping (like 100,000 new cops).