Doulas certified through CAPPA and DONA (and perhaps others? These are the two I am sure about) can register to get their own code. This is fairly new, and many doulas do not have one. I have not heard of insurance actually covering services, but now that there is a code, you can still submit it and create demand for coverage, state your case in whatever approval process they may have, etc. If nothing else it can help push people getting coverage forward. If you have a flex plan, you can definitely submit it. Success of acceptance toward flex is pretty good.