Low Incidence Disabilities

Photo of student with OHD
Photo of student with OHD

Other Health Disabilities (OHD)

Other Health Disabilities (OHD) include a wide range of chronic or acute health conditions that can range from mild to severe. Students with OHD have limited strength, endurance, vitality, or alertness in the educational environment.

Severely Multiply Impaired (SMI)

Students with Severe Multiple Impairments (SMI) meet the criteria for two or more of six categorical areas: deaf or hard of hearing, physically impaired, developmental cognitive disability (severe/profound), visually impaired, emotional or behavioral disorders, and autism spectrum disorders.

Traumatic Brain Injury (TBI)

Students with Traumatic Brain Injury (TBI) have had an injury to the brain caused by an external physical force, resulting in total or partial functional disability and/or psycho-social impairment that may adversely affect a student's performance and result in the need for special education and related services.


Students who require the highest level of services for their low-incidence disability learn in one of our federal setting IV schools. Currently, enrollment in these schools is limited to students from one of our 13 member districts.


We offer many services that support students with low-incidence disabilities, including: