The Surgeon General explains the significance of a diagnosis here:
http://www.surgeongeneral.gov/librar...ter2/sec2.html
I have had I would guess about ten different diagnosis. I stopped paying attention to them since the topics in therapy did not change and the medications remained devoted to altering my brain to rid me of depression and anxiety.
I too disliked some of the diagnoses. Adult Adjustment Reaction was one. I told my psychologist it should be Child Adjustment Reaction. After all, the problem was described as being unable to function well as an adult.
Now, when a see a mental health professional I ask if there is a scientific explanation for those times when the placebo effect fails.
Sorry for rambling.