Typical 10 disorders which might affect language skills:
Intellectual disabilities: A developmental disorder that having limits to a person’s ability to learn at an expected level and function in daily life.
Autism spectrum disorder: A developmental disorder that affects social communication and interaction, and restricted/repetitive behaviors or interests.
ADHD: A developmental disorder that affects behaviors due to attention deficit or hyperactivity.
Phonological awareness problems: A specific difficulty in identifying and manipulating phoneme and units of language.
Development Expressive Language disorder: A developmental disorder that affects speaking, writing, and expression of nonverbal communication like gestures.
Dysarthria: A speech disorder that affects forming and pronouncing words, and controlling the muscles use for speech.
Stuttering: A speech disorder characterized by repetition of sounds, prolongation of sounds, and interruptions in speech, and other symptom.
Dyslexia: A learning disorder that affects reading and related language processing caused by problems of phonological awareness, visual perception, working memory etc.
Dysgraphia: A learning disorder that affects handwriting and related motor skills caused by problems of phonological awareness, visual perception, working memory etc.
Dyscalculia: A learning disorder that affects calculations and understanding mathematics caused by problems of phonological awareness, visual perception, working memory etc.
Relations with the categories of language skills:
Disorder can develop alone or with more than one. For example, approximately 1/5 of those who has stuttering are said to have a developmental disorder, such as Autism spectrum disorder or ADHD, as a complication.