The way the insurance works in the US, the Explanation of Benefits goes to the primary subscriber (in our house it's my husband, but I open all of them). Now, they may have gone paperless, if they've gone paperless, like we have, they might only get an EOB when they owe something (other than the co-pay). The caveat is that every single claim that goes through on their insurance is generally available online. So, it depends on how often they check it. Mine doesn't say my diagnosis only that I'm in individual treatment.

My parents are the "don't talk about it" type. I suspect if I had gotten the guts to get therapy when I was on their insurance many moons ago, they would have ignored the whole thing and left me alone on it. That's what I think of when I think "traditional." Do they have a habit of hounding you about things?

Also remember, you don't have to talk to them about what's going on. If they say, "Hey, got a claim that you were in therapy, everything all right?" You can answer with, "I'm doing fine, I just needed a little extra help. Thanks for your concern, let's eat some ice cream!"