As far as I know, the ICD generally tends to follow some of the DSM's changes. However, the ICD already includes diagnoses that the DSM does not and vice versa. More so, some of the diagnostic guidelines, descriptions of disorders and the official terms used for disorders differ as well. It's pretty much a "perhaps, perhaps not" kind of situation.
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Autism + ADHD
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The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it. Terry Pratchett