Unspecified communication disorder – for those who have symptoms of a communication disorder but who do not meet all criteria, and whose symptoms cause distress or impairment. Examples
Examples of disorders that may include or create challenges in language and communication and/or may co-occur with the above disorders:

autism spectrum disorders - autistic disorder, pervasive developmental disorder not otherwise specified (PDDNOS), and Asperger disorder – developmental disorders that affect the brains normal development of social and communication skills. expressive language disorder – affects speaking and understanding where there is no delay in non-verbal intelligence. mixed receptive-expressive language disorder – affects speaking, understanding, reading and writing where there is no delay in non-verbal intelligence. specific language impairment – a language disorder that delays the mastery of language skills in children who have no hearing loss or other developmental delays. SLI is also called developmental language disorder, language delay, or developmental dysphasia. Sensory impairments
Blindness – A link between communication skills and visual impairment with children who are blind is currently being investigated. Deafness/frequent ear infections – Trouble with hearing during language acquisition may lead to spoken language problems. Children with frequent ear infections may temporarily develop problems pronouncing words correctly. Some of the above communication disorders can occur with people who use sign language. The inability to hear is not in itself a communication disorder. Aphasia
Aphasia is loss of the ability to produce or comprehend language. There are acute aphasias which result from stroke or brain injury, and primary progressive aphasias caused by progressive illnesses such as dementia.
Acute aphasias
Expressive aphasia also known as Brocas aphasia, expressive aphasia is a non-fluent aphasia that is characterized by damage to the frontal lobe region of the brain. A person with expressive aphasia usually speaks in short sentences that make sense but take great effort to produce. Also, a person with expressive aphasia understands another persons speech but has trouble responding quickly. Receptive aphasia also known as Wernickes aphasia, receptive aphasia is a fluent aphasia that is categorized by damage to the temporal lobe region of the brain. A person with receptive aphasia usually speaks in long sentences that have no meaning or content. People with this type of aphasia often have trouble understanding others speech and generally do not realize that they are not making any sense. Conduction aphasia
Anomic aphasia
Global aphasia
Primary progressive aphasias
Progressive nonfluent aphasia
Semantic dementia
Logopenic progressive aphasia

Learning disability
Dyscalculia – an impairment in the systems used in communicating numbers
Dyslexia – an impairment in systems used in reading
Dysgraphia – an impairment in the systems used in writing

Speech disorders
cluttering - a syndrome characterized by a speech delivery rate which is either abnormally fast, irregular, or both. dysarthria - a condition that occurs when problems with the muscles that helps a person to talk make it difficult to pronounce words. esophageal voice - involves the patient injecting or swallowing air into the esophagus. Usually learnt and used by patients who cannot use their larynges to speak. Once the patient has forced the air into their esophagus, the air vibrates a muscle and creates esophageal voice.