It is illegal for an employer to discriminate against you simply because you have a mental health condition. Employees who feel they have been discriminated against should call the Office of Diversity and.Employers must provide the requesting employee with a final written determination identifying any accommodation that has been granted or denied. It is illegal for an employer to take adverse actions against a worker based on a mental or psychological condition that meets the definition of "disability." The New York City Human Rights Law prohibits employers from engaging in employment discrimination based on mental illness. Pursuant to the ADA, employers with 15 or more employees may not discriminate against "qualified individuals" because of a disability. Pursuant to the ADA, employers with 15 or more employees may not discriminate against "qualified individuals" because of a disability. How can we effectively address mental health issues in the workplace, particularly for high-stress jobs? A mental health condition can impact various aspects of an individual's life, including the ability to achieve maximum productivity in the workplace. • Most employers have at least 1 employee with a mental illness.