A communication disorder is an impairment within the ability to receive, send, process, and comprehend concepts or verbal, nonverbal and character systems. A communication disorder could also be evident within the processes of hearing, language, and/or speech. A communication disorder may home in severity from mild to profound. It may be developmental or acquired. Individuals may demonstrate one or any combination of communication disorders. Communication disorders into the following categories: Language Disorder, Speech Sound Disorder, Childhood-Onset Fluency Disorder, Social Communication Disorder and Unspecified Communication Disorder. Disorders and tendencies included and excluded under the category of communication disorders may vary by source. In general, communication disorders commonly ask problems in speech that significantly interfere with an individual’s achievement and/or quality of life. Knowing the operational definition of the agency performing an assessment or giving a diagnosis may help.