Diabetes falls under the definition of a disability in the Americans with Disabilities Act, according to the U.S. Equal Employment Opportunity Commission. Diabetes is classed as a disability because it substantially limits endocrine function.
The ADA classes diabetes as a disability even if a diabetic is able to control his blood glucose levels with diet or insulin, explains the U.S. Equal Employment Opportunity Commission. The ADA legally prevents an employer from refusing to hire an employee or terminating the employment of an employee because he has diabetes or because the employer believes that the employee has diabetes. Employers cannot legally ask applicants if they have diabetes during job interviews.