My DS was diagnosed w/ PDD-NOS and ASD on the same day...team diagnoses. I always say he is autistic. It always amazes me when people say "my child isn't autistic, he is PDD". It is the SAME thing, different name, and depends on the person making the diagnoses. I've seen kids much lower functioning than my DS, and the parents are staying safe w/ the PDD label. Look at the deficits, and work on fixing them...don't worry about the label. This isn't a Diabetes type I or II, where you can do a blood test....this is subjective, and some of the professionals don't know what they are talking about, or they're afraid to be honest, or don't think the parent can cope w/ the autism label. I really wish they would get rid of the PDD label...just say the kid is ASD...and I wish there were definitive markers for high vs. low functioning...age of potty-training, receptive and expressive vocab, etc...