I don't thik BDSM = noncon - and I can tell you if you label it as such, there will be many members of the BDSM community who will take offense (rightly so). explicit is a much more accurate way of addressing.

the challenge if that you're trying to cover too many issues with the same brush: triggery and explicit, have overlap but not always.

on to another topic: add this to your list
http://fanlore.org/wiki/The_Door