evidence: NOTE: Data are for the 50 states and the District of Columbia only. Disability type refers to the specific disability for which a child is receiving services under IDEA. Disability types served under IDEA are defined under title 34. If a child has multiple types of disabilities but is receiving services for only one IDEA-defined disability, then the child is categorized under that specific disability. If a child is receiving services for more than one type of IDEA-defined disability, then the child is categorized under "multiple disabilities." Orthopedic impairment, visual impairment, traumatic brain injury, and deaf-blindness are not shown because they each account for less than 0.5 percent of students served under IDEA. Details do not sum to total because of rounding in the data labels and the exclusion of some categories. Figures are plotted based on unrounded data. [...] 5 Disability type refers to the specific disability for which a child is receiving services under IDEA. If a child has multiple types of disabilities but is receiving services under IDEA for only one type of disability, then the child is categorized under that specific disability. If a child is receiving services for more than one type of IDEA-defined disability, then the child is categorized under "multiple disabilities." [...] 8 Other health impairments include having limited strength, vitality, or alertness due to chronic or acute health problems such as a heart condition, tuberculosis, rheumatic fever, nephritis, asthma, sickle cell anemia, hemophilia, epilepsy, lead poisoning, leukemia, or diabetes. Please see title 34 for more information.