Prior to 2013, a person was diagnosed with PDD-NOS if they had some behaviors seen in autism but did not meet the full criteria for having an Autistic Disorder. Today, most children who would have been diagnosed with PDD-NOS would most likely be given a diagnosis of autism.
PDD-NOS Signs & Symptoms Prior to 2013
Often, children with PDD-NOS were thought to have a "milder" form of autism, though this may not be technically true. One symptom may be minor, while another may be debilitating.
Social Signs & Symptoms
Children diagnosed with PDD-NOS usually had social symptoms as well. They may want friends, but don't know how to make them. If they have language delays, this can also hinder their ability to socialize. Often, they have difficulty understanding body language, facial expressions, and tone of voice. Another common symptom is difficulty understanding emotions. The child may not be able to distinguish when someone is happy, sad, or angry.
Communication Signs & Symptoms
Behavioral Signs & Symptoms
Behavioral symptoms can include emotional outbursts and tantrums. These children may become very dependent on routines and need things to stay the same. They can misinterpret situations and become frustrated easily. It is important to remember that when dealing with your child, often these tantrums are a result of fear, anxiety, or misunderstanding a situation.