Yep, you and I could change countries mate and we would be assessed on the exact same criteria... and both end up with the same diagnosis, even being in different countries. I think that is amazing that the psychiatric community came together worldwide to agree in a "majority" viewpoint on specific aspects to provide a global balance to mental health. Someone said something similar to me face to face about the DSM, and when I said something similar to them in return, they thought about it and changed their mind on the DSM. They thought it was the end all of diagnosis, when in fact it has nothing really to do with that, it was about a minimum standard to meet a global standardization, so regardless where you go in the world for mental health treatment you will be assessed based on the same minimum standards.

Obviously the physicians individual knowledge, experience and personality then comes into play on any actual diagnosis. To me, not even physicians are created equal... as they often specialise in certain streams just as therapists do. Finding the right one for trauma is often just as much a case as is finding a trauma therapist.