It might depend on your procedure.
I was running scenarios in my head and the one I have most commonly seen coverted to an open is gallbladder.
When I run 47562-53 and 47600, my claim scrubber tells me these are bundled and a modifier is not allowed.
My point is, this procedure is usually converted because there is a threat to the patient and the lap procedure has to be discontinued. If they nick something, they are probably going to have to open them up to fix it. So I can see where 53 might apply. Have I ever billed procedures like that, no, I am just saying Karen may have a valid point depending on the procedures.
Just my 2 cents,
Laura, CPC, CEMC