Strictly speaking, when the DSM-V comes out, no one will have Asperger's _per se_ since they've removed it (under the assumption that people will either be classified under the revised definition of Autism, or not at all).
Under the DSM-IV, one of the criteria reads: "(III) The disturbance causes clinically significant impairments in social, occupational, or other important areas of functioning." -- generally, it's up to a psychiatrist's professional judgement to determine this. Sometimes it will be obvious; sometimes it won't. Don't self-diagnose.
Under the DSM-IV, one of the criteria reads: "(III) The disturbance causes clinically significant impairments in social, occupational, or other important areas of functioning." -- generally, it's up to a psychiatrist's professional judgement to determine this. Sometimes it will be obvious; sometimes it won't. Don't self-diagnose.