ADA Coverage of Episodic and Recurring Conditions

The Americans with Disabilities Act covers episodic and recurring conditions, and it evaluates them at their worst rather than their best. Under the ADA Amendments Act of 2008, a condition that comes and goes—or that is currently in remission—qualifies as a disability if it would substantially limit a major life activity when active.¹ You don’t have to be mid-flare to be protected, and your employer cannot argue that your good stretches disqualify you.

The “When Active” Rule

Federal law says a condition that is episodic or in remission is a disability if it would substantially limit a major life activity during an active phase.² Congress added this language specifically because courts had been rejecting claims from people whose symptoms fluctuated, reasoning they weren’t disabled between episodes. That reasoning no longer holds.

Two other pieces of the definition matter for recurring conditions. First, mitigating measures are ignored. If medication, medical equipment, assistive technology, or coping strategies keep your symptoms in check, the legal analysis pretends those tools don’t exist. Ordinary eyeglasses and contact lenses are the only exception. So a well-controlled condition is still a covered condition. Second, “major life activities” is read broadly and includes breathing, walking, sleeping, concentrating, thinking, and communicating, along with the operation of major bodily systems such as the immune system, neurological function, normal cell growth, and reproductive function.² If your flares disrupt any of these, you meet the definition.

One boundary worth naming: the ADA’s employment rules apply only to employers with 15 or more employees for at least 20 calendar weeks in the current or prior year.³ Smaller employers aren’t covered by Title I, though state disability law may reach them. You also need to be a “qualified individual,” meaning you can perform the essential functions of the job with or without a reasonable accommodation. The law doesn’t require an employer to strip out core duties, only to adjust around them.

Conditions That Typically Qualify

Epilepsy is the clearest case. The EEOC has said people with epilepsy “should easily be found to have a disability” because seizures substantially limit neurological function, even when the person functions normally between episodes—and coverage holds even if medication eliminates seizures entirely.⁴

Cancer in remission qualifies on the same reasoning: the underlying condition would substantially limit normal cell growth if it became active again.⁵ Multiple sclerosis fits the same framework, since flares can disrupt movement, vision, or cognition.

Mental health conditions are covered too. The EEOC has stated that major depression, PTSD, bipolar disorder, schizophrenia, and OCD “should easily qualify” as disabilities, with many other conditions qualifying as well.⁶ Depressive or manic episodes can significantly interfere with concentration, thinking, and daily functioning. Diabetes and hypertension are evaluated based on their impact when uncontrolled, since the mitigating-measures rule sets the medication aside.

Accommodations That Fit an Unpredictable Condition

A reasonable accommodation is any change to your work environment, schedule, or duties that lets you do your job despite your condition. The episodic nature of a condition doesn’t reduce the employer’s obligation.⁷ Because flares are unpredictable, the accommodations that work best usually build in flexibility rather than making permanent structural changes.

Flexible or adjusted schedules: shifted start times, longer breaks, or time built in for medical appointments.
Telework during flares, either as needed or on a set schedule, when the job can be done remotely without significant difficulty.
Job restructuring that reassigns minor duties that are hard to perform during a flare, while you keep all essential functions.
Unpaid leave, including intermittent leave taken in blocks during active episodes, even if you’ve exhausted other leave benefits.

The accommodation doesn’t have to be the exact one you asked for. An employer can pick an equally effective alternative. But it does have to actually work. If the chosen accommodation doesn’t solve the problem, the interactive process isn’t finished, and the employer has to keep looking with you.⁸

How to Make the Request

You start the process by telling your employer you need a change at work because of a medical condition. Human resources or a designated ADA coordinator is the right place to raise it. You don’t need to say “reasonable accommodation” or cite the statute. A plain statement that you need a work adjustment because of a health issue is enough to trigger the employer’s duty to engage.

Put the request in writing through an internal portal, email, or certified mail, so you have a record of what you asked for and when. EEOC guidance says employers must respond expeditiously, and unnecessary delay can itself violate the ADA.⁹ Keep a log of every conversation and copies of every document.

Your employer can ask for supporting medical documentation. A useful letter from your provider covers three points: your diagnosis, the specific limitations you experience when the condition is active, and how those limitations relate to the job duties you need help with. For an episodic condition, the letter should describe how often flares happen and how long they typically last, and it should frame limitations in terms of what happens “when active,” which is the exact language of the legal standard. If your condition causes tremors, for instance, the letter should explain how those tremors affect the fine motor tasks your job involves.

When an Employer Can Say No

Two defenses matter here. The first is undue hardship: an accommodation would cause “significant difficulty or expense” given the employer’s actual resources.⁹ It’s evaluated case by case, looking at cost, overall financial resources, workforce size, and impact on operations. Employers can’t rely on coworker or customer prejudice, effects on other employees’ morale, or a comparison of the accommodation’s cost to your salary. And when one accommodation is too costly, the employer still has to consider cheaper alternatives.

The second defense is direct threat: an employer can refuse to place someone in a position if that person poses a significant risk to the health or safety of others that can’t be reduced through reasonable accommodation.³ The assessment must be individualized and based on current medical evidence, weighing four factors: duration of the risk, severity of potential harm, likelihood, and imminence. A blanket policy excluding everyone with a given diagnosis doesn’t meet that standard.

Protection Against Retaliation

Federal law prohibits your employer from punishing you for requesting an accommodation, filing a complaint, or otherwise asserting ADA rights.¹⁰ Retaliation is any action harsh enough that it might discourage a reasonable person from speaking up.

The ADA also prohibits interference with your rights, which reaches further than most anti-discrimination laws. Your employer can’t pressure you to drop an accommodation you’re entitled to, threaten consequences for requesting one, or discipline a coworker who helped you.¹¹ The threat alone violates the law, even if the employer never follows through.

If Your Employer Refuses

If your employer denies a reasonable accommodation, retaliates, or otherwise violates the ADA, you generally have 180 days from the discriminatory act to file a charge with the EEOC. That deadline extends to 300 days in states with their own disability discrimination agency, which most states have.¹² Federal employees have a much shorter window and must contact their agency’s EEO counselor within 45 days.

You cannot file a federal ADA lawsuit without first receiving a Notice of Right to Sue from the EEOC. The agency issues the notice when it closes its investigation. If you want to move faster, you can request the notice once 180 days have passed since you filed the charge, and the EEOC must issue it.¹³ From the date you receive the notice, you have 90 days to file suit. Miss that window and you lose the right to sue on that charge.

If you win, federal law caps combined compensatory and punitive damages for intentional discrimination based on employer size:¹⁴

15 to 100 employees: $50,000
101 to 200 employees: $100,000
201 to 500 employees: $200,000
More than 500 employees: $300,000

These caps cover emotional distress, pain and suffering, and punitive damages combined. They don’t limit back pay, front pay, or attorney’s fees, which are available on top. An employer that refuses to engage in the interactive process at all is especially exposed, because that refusal can itself be treated as a failure to accommodate.

1
U.S. Department of Labor. Frequently Asked Questions – Americans with Disabilities Act Amendments Act
2
Office of the Law Revision Counsel. 42 USC 12102 – Definition of Disability
3
Office of the Law Revision Counsel. 42 USC 12111 – Definitions
4
U.S. Equal Employment Opportunity Commission. Epilepsy in the Workplace and the ADA
5
U.S. Equal Employment Opportunity Commission. Cancer in the Workplace and the ADA
6
U.S. Equal Employment Opportunity Commission. Depression, PTSD, and Other Mental Health Conditions in the Workplace – Your Legal Rights
7
U.S. Equal Employment Opportunity Commission. Disability Discrimination and Reasonable Accommodation – Medical Inquiries, Leave and Telework
8
U.S. Equal Employment Opportunity Commission. Practical Advice for Drafting and Implementing Reasonable Accommodation Procedures Under Executive Order 13164
9
U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Reasonable Accommodation and Undue Hardship Under the ADA
10
Office of the Law Revision Counsel. 42 USC 12203 – Prohibition Against Retaliation and Coercion
11
U.S. Equal Employment Opportunity Commission. Questions and Answers – Enforcement Guidance on Retaliation and Related Issues
12
U.S. Equal Employment Opportunity Commission. Time Limits for Filing a Charge
13
U.S. Equal Employment Opportunity Commission. Filing a Lawsuit
14
Office of the Law Revision Counsel. 42 USC 1981a – Damages in Cases of Intentional Discrimination in Employment