Parents of 26 children with diagnoses of Asperger's disorder completed a symptom checklist to determine whether the children met "Diagnostic and Statistical Manual of Mental Disorders-Fourth Edition, Text Revision" ("DSM-IV-TR"; American Psychiatric Association, 2000) criteria for Asperger's disorder, autism, or pervasive developmental disorder not otherwise specified. Results showed that almost all (20) met criteria for autism, and a "DSM-IV-TR" diagnosis of Asperger's disorder could not be confirmed in any child. Further, 95% of the parents whose children did not have a "DSM-IV-TR" diagnosis of Asperger's disorder agreed with their child's diagnosis of Asperger's disorder. Our findings suggest that the hierarchical "DSM-IV-TR" criteria are not applied by clinicians to diagnose Asperger's disorder because most children with diagnoses of Asperger's disorder actually met "DSM-IV-TR" criteria for autism, which precludes a diagnosis of Asperger's disorder. These findings are consistent with previous studies. Most experts now agree that autism is a spectrum disorder and Asperger's disorder is actually high-functioning autism. Implications for the next revision of the "DSM" are discussed.