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Primary Disability Definitions

Code Disability Definition
AU Autism Developmental disability significantly affecting verbal and nonverbal communication and social interaction, generally evident before age three (3) that adversely affects a child's educational performance. Other characteristics often associated with autism are engagement in repetitive activities and stereotyped movements, resistance to environmental change or change in daily routines, and unusual responses to sensory experiences.
BI Traumatic Brain Injury An acquired injury to the brain caused by an external physical force, resulting in total or partial functional disability or psychosocial impairment, or both, that adversely affects a child's educational performance. TBI applies to open or closed head injuries resulting in impairments in one or more areas, such as cognition; language; memory; attention; reasoning; abstract thinking; judgement; problem solving; sensory; perceptual and motor abilities; psychosocial behavior; physical functions; information processing; and speech. TBI does not apply to brain injuries that are congenital or degenerative, or brain injuries induced by birth trauma.
CD Cognitive Disability Significantly sub-average general intellectual functioning, existing concurrently with deficits in adaptive behavior and manifested during the developmental period that adversely affects a child's educational performance.
DB Deaf-Blindness Concomitant hearing and visual impairments, the combination of which causes such severe communication and other developmental and educational needs that they cannot be accommodated in special education programs solely for children with deafness or children with blindness.
DD Developmental Delay A child with a disability ages three (3) through nine (9) who is determined, through appropriate diagnostic instruments and procedures, to be experiencing delays in the following areas: physical development, cognitive development, communication development, social or emotional development, or adaptive development and who, by reason thereof, needs special education and related services.
ED Emotional Disability A condition exhibiting one or more of the following characteristics over a long period of time and to a marked degree that adversely affects a child's educational performance.
HI Hearing Impairment (including Deafness) An impairment in hearing, whether permanent or fluctuating, that adversely affects a child's educational performance but that is not included under the definition of deafness in this subsection. "Deafness" means a hearing impairment that is so severe that the child is impaired in processing linguistic information through hearing, with or without amplification that adversely affects a child's educational performance.
HL Other Health Impairment A condition exhibiting limited strength, vitality, or alertness including a heightened alertness to environmental stimuli, that results in limited alertness with respect to the educational environment, that is due to chronic or acute health problems, such as asthma, attention deficit disorder or attention deficit hyperactivity disorder, diabetes, epilepsy, a heart condition, hemophilia, lead poisoning, leukemia, nephritis, rheumatic fever, sickle cell anemia, and Tourette syndrome; and adversely affects a child's educational performance.
LD Specific Learning Disability A disorder in one or more of the basic psychological processes involved in understanding or using language, spoken or written, that may manifest itself in the imperfect ability to listen, think, speak, read, write, spell, or to do mathematical calculations, including conditions such as perceptual disabilities, brain injury, minimal brain dysfunction, dyslexia, and developmental aphasia. SLD does not include learning problems that are primarily the result of visual, hearing, or motor disabilities; of cognitive disabilities; of emotional disability; or of environmental, cultural or economic disadvantage.
MU Multiple Disabilities Concomitant impairments (such as cognitive disability- blindness, cognitive disability- orthopedic impairment, and cognitive disability- deafness, etc.), the combination of which causes such severe educational needs that they cannot be accommodated in special education programs solely for one of the impairments, except the term does not include deaf-blindness.
OI Orthopedic Impairment Impairment A severe orthopedic impairment that adversely affects a child's educational performance. The term includes impairments caused by a congenital anomaly, impairments caused by disease (e.g., poliomyelitis, bone tuberculosis, etc.), and impairments from other causes (e.g., cerebral palsy, amputations, and fractures or burns that cause contractors).
SL Speech/Language Impairment

A communication disorder, such as stuttering, impaired articulation, a language impairment, or a voice impairment that adversely affects a child's educational performance.

VI Visual Impairment (including blindness) Impairment in vision that, even with correction, adversely affects a child's educational performance. The term includes partial sight and blindness.