Autism spectrum disorder without disorder of intellectual development and with absence of functional language without loss of previously acquired skills (Q98650)

All definitional requirements for autism spectrum disorder are met, intellectual functioning and adaptive behaviour are found to be at least within the average range (approximately greater than the 2.3rd percentile), and there is complete, or almost complete, absence of ability relative to the individual’s age to use functional language (spoken or signed) for instrumental purposes, such as to express personal needs and desires. The clinical history does not include a loss of previously acquired skills.