The ADHD diagnosis boom: what U.S. employers actually need to verify

Health authorities disagree on what this means. A U.S. government health commission has explicitly labelled the current situation a “crisis of overdiagnosis and overtreatment.” Other clinicians argue this mostly reflects correcting decades of under-recognition, particularly in women and adults never assessed as children. A recent clinical review summed it up: both overdiagnosis and under-recognition appear to be happening at once, in different populations.

What’s genuinely new is where people are forming their first impression they have ADHD: social media, not a clinician’s office. Research analysing popular ADHD content on TikTok found more than half of the videos reviewed were misleading by clinical standards, and exposure correlates with viewers over-identifying with symptoms they don’t actually meet criteria for. A separate PLOS One study reached a similar conclusion.

What U.S. law actually requires

This is the part that matters most for compliance, and it’s more permissive of employees than many employers assume. Under the Americans with Disabilities Act (ADA), enforced by the Equal Employment Opportunity Commission, employees are not required to disclose a specific diagnosis to request an accommodation – only to describe the functional limitation a condition creates at work, such as difficulty concentrating, organising tasks or managing time. An employer can ask for documentation sufficient to confirm a disability and connect it to the accommodation requested, but is not entitled to a full medical record, and the EEOC’s own guidance to providers focuses on functional limitations rather than diagnostic codes.

Practically, that means a self-diagnosed employee citing ADHD-like symptoms without a formal assessment sits in a genuine grey zone: the ADA protects people with a “record of” or who are “regarded as” having a disability, not only those with a confirmed diagnosis, but an employer can still reasonably request documentation before granting an ongoing accommodation.

The safest position is to engage the ADA’s “interactive process” regardless of how confident the employee’s self-assessment sounds – explore what limitation is actually being described, and let documentation requirements flow from that conversation rather than from the label the employee has already put on it themselves.