Autism/ID panel analysis can be performed on patients who meet the criteria for Autism Spectrum Disorders (ASD) or Intellectual Disability. ASD is a clinically heterogeneous group of disorders that are characterized by impaired social relationships, impaired language and communication, and repetitive behaviors, or a narrow range of interests that appears in the first 3 years of life. Intellectual Disability (also known as developmental delay or formerly, mental retardation) is characterized by significantly sub-average general intellectual functioning associated with impairments in adaptive behavior and manifested during the developmental period (Miller et al. Am J Hum Genet 86:749-764, 2010).