Other Health Impairment is a broad classification.
The definition in NYS Part 200 regulations of the commissioner of
education is "having limited strength, vitality, or alertness, including
a heightened alertness to environment stimuli, that results in limited
alertness with respect to the educational environment, that is due to
chronic or acute health problems, including but not limited to a heart
condition, tuberculosis, rheumatic fever, nephritis, asthma, sickle cell
anemia, hemophilia, epilepsy, lead poisoning, leukemia, diabetes,
attention deficit disorder or attention deficit hyperactivity disorder
or tourette syndrome, which adversely affects a student's educational performance.
the attached link for a resource booklet on Identifying and Treating
Individuals with Attention Deficit Hyperactivity Disorder. It is a 43
page resource booklet for teachers and parents. http://www2.ed.gov/teachers/needs/speced/adhd/adhd-resource-pt1.pdf
This is a resource of the Learning Disabilities Association (LDA): http://www.ldparentsconnect.org/index.php/useful-information/368-adhd