Proposed changes to the official autism diagnosis are raising concerns among advocates and families, with many fearing the new criteria will lead to a loss of services and a sense of identity for some high-functioning individuals with special needs. “There’s no question some people (on the autism spectrum) will lose services,” said Dr. Fred Volkmar, an internationally renowned expert on autism and director of the Yale Child Study Center. Volkmar was the lead author of a study that found that only 45 percent of those currently diagnosed with higher functioning forms of autism would meet the new criteria. Sarah Reed, director of advocacy and family services for the Connecticut Autism Spectrum Resource Center in Wallingford, predicted “chaos in the coming months. Families are confused and concerned that their loved ones with autism will not qualify for education and support services under the new criteria.” At issue are proposed criteria for autism spectrum disorders (ASD) in the American Psychiatric Association’s Diagnostic and Statistical Manual fifth edition (DSM-5).