I don't know if any tool would report it other than some expensive emissions tester like Ontario garages used to have. I recall a friend getting a fail because their cat was "partially plugged" according to the emission test center. Only way you get that it to measure the degree of failure in the cat.
Without knowing, I'd guess there's one code for a total cat failure as determined by the ECU and another code for a "well, it's kinda baffed"