ADHD Adult Assessment in Business: Who, How Much, and How It Is Covered
An employee you suspect has undiagnosed ADHD. A worker wondering if their professional difficulties have a neurological origin. This guide answers all practical questions about the ADHD adult assessment — and what the employer can do to support the process.
In France, it is estimated that 2.5 to 5% of the adult population has ADHD (Attention Deficit Hyperactivity Disorder) — that is between 1.5 and 3 million people. The vast majority have never been diagnosed: either because the disorder went unnoticed in school (especially among women and inattentive profiles), or because the adult diagnosis did not yet exist in French clinical practices when these individuals were children, or because they developed sufficient compensatory strategies to "manage" until professional demands exceeded their coping abilities. In your company, undiagnosed ADHD employees may be working in a state of chronic cognitive fatigue, misunderstood by their manager and frustrated with themselves. This guide explains how the ADHD adult diagnostic assessment works, who can carry it out, what it costs, and what the employer can do to facilitate the process — without ever crossing the boundaries of respect for privacy.
1. ADHD Adult in Business: Recognizing the Signals
1.1 ADHD in Adults: A Disorder Often Invisible and Misunderstood
Adult ADHD does not always resemble the stereotypical clinical picture of the hyperactive child running around. In adults, motor hyperactivity often fades with age — it transforms into inner restlessness, a tendency to interrupt, and an inability to sit still during a long meeting. Inattention, on the other hand, persists and manifests in the professional context in very specific ways: chronic forgetfulness, difficulty completing tasks, massive procrastination, persistent disorganization, hypersensitivity to noise and interruptions in open spaces.
What makes adult ADHD particularly difficult to identify in the workplace is that many of these individuals have developed very effective compensatory strategies over the years — compensatory hyper-organization, over-investment in work to catch up on delays, hyperfocus on exciting topics that masks deficits on tedious tasks. These strategies work up to a point: a promotion, a job change, a period of intense stress, or the arrival of a child can cause the compensatory structure to collapse — and it is often at this moment that ADHD reveals itself.
of adults have ADHD — that is 1.5 to 3 million people in France
of adults with ADHD were not diagnosed in childhood (INSERM 2022)
average delay between the first symptoms in adults and the diagnosis in France
estimated decrease in productivity for an unsupported ADHD worker (OECD study 2021)
1.2 Observable signals in a professional context
A manager cannot diagnose a colleague — and they neither have the legitimacy nor the skills to do so. But they can observe recurring behaviors that deserve a caring conversation about available resources. These signals are never proof of ADHD — they are indicators of functioning that can have many causes. What matters is the persistence, repetition, and contrast with the person's abilities in other areas.
🔵 Organization & Time Management
- Deadlines regularly missed despite efforts
- Difficulty prioritizing, everything seems urgent
- Massive procrastination on complex tasks
- Office and digital files in chronic disarray
- Frequent forgetfulness of meetings or commitments
- Tendency to start 5 projects and finish none
🟡 Attention & Concentration
- Very distracted in open space, difficulties working
- Loses track in meetings, often asks for repetition
- Intense hyperfocus on stimulating topics
- Recurring careless mistakes on mastered tasks
- Very difficult long reading, skips passages
- Forgets what they wanted to say mid-sentence
🔴 Emotions & Impulsivity
- Intense and rapid emotional reactivity
- Often interrupts in meetings
- Difficulty tolerating frustration and waiting
- Makes impulsive decisions they regret
- Easily offended by criticism
- Alternates between excessive enthusiasm and demotivation
⚠️ Essential reminder: These signals do not allow for a diagnosis of ADHD — many other causes can explain them (anxiety, depression, burnout, lack of sleep, value conflicts). The manager's role is never to diagnose but to open a caring conversation about available resources, particularly the occupational physician. Never mention "ADHD" to a colleague without them having brought it up themselves.
2. The adult ADHD diagnostic pathway: by whom and how
2.1 The neuropsychological assessment: the diagnostic reference
The diagnosis of ADHD in adults is based on a neuropsychological assessment conducted by a neuropsychologist or a specialized physician (psychiatrist, neurologist, child psychiatrist in adult consultation). This assessment evaluates the cognitive functions involved in ADHD: sustained and divided attention, working memory, information processing speed, inhibition, cognitive flexibility, planning. It includes standardized questionnaires on daily functioning (DIVA, Conners, WURS), in-depth clinical interviews, and standardized cognitive tests.
The duration of a complete assessment varies between 4 and 8 hours, often spread over several sessions. The resulting written report is a detailed medical document that describes the cognitive profile of the person, establishes or rules out the diagnosis of ADHD, and makes recommendations for adjustments in the relevant areas of life — including work. This document can be sent to the occupational physician to structure job accommodations.
2.2 Professionals authorized to diagnose adult ADHD
Neuropsychologist
Specialist in cognitive assessments. Conducts a complete evaluation of executive functions. Does not prescribe medication but makes recommendations for adjustments.
Direct access or by prescription · Private practice or hospitalAverage wait: 3 to 12 months in private practice
Psychiatrist
Medical specialist in mental disorders. Can make the clinical diagnosis of ADHD and prescribe medication (Ritalin, Concerta, Strattera in ATU) if necessary.
By prescription from the treating physicianAverage wait: 6 to 18 months in the public sector
Neurologist
Can conduct an assessment for adult ADHD, especially in cases of neurological comorbidities. Less common practice than psychiatry for pure ADHD.
By prescription · Hospital or private practiceVariable wait depending on specialization
General practitioner trained in ADHD
Can initiate the diagnosis through standardized questionnaires and refer to a specialist. Some general practitioners are specifically trained in adult ADHD — list available via HAS-ADHD.
First point of contact accessible · No waitFor referral — not for the complete assessment
Expert centers for adult ADHD
Specialized hospital consultations offering complete assessments and multidisciplinary follow-up. Bordeaux, Paris (Sainte-Anne, Lariboisière), Lyon, Montpellier, Strasbourg…
By prescription · Public sectorWait: 6 to 24 months depending on the centers
Specialized telemedicine ADHD
Since 2022, platforms like Psyvia, Medadom, or Livi offer initial ADHD consultations remotely. They allow for a quick first evaluation and a referral to a specialist.
Immediate access · Video consultationDoes not replace the complete assessment
ADHD at work: recognize and support
This online training, 100% remote and at your own pace, provides your managers, HR directors, and disability mission leaders with the keys to recognize the signs of ADHD in the workplace, support diagnostic processes without stigmatizing, and implement adjustments that unlock the potential of ADHD employees. Qualiopi certified, fundable by OPCO, deployable in multi-employee licenses.
Discover the training →3. The cost of the adult ADHD assessment: what it really costs
3.1 The different components of the cost
The cost of an adult ADHD diagnostic assessment varies significantly depending on the type of professional consulted, the sector (public or private), and the completeness of the assessment. It is important to distinguish the cost of the initial evaluation, the complete neuropsychological assessment, and the post-diagnostic follow-up.
Consultation with primary care physician
Initial orientation, screening questionnaires. Social security reimbursement base.
70% reimbursed by SSConsultation with psychiatrist sector 1
Clinical diagnostic interview, possibly medication prescription.
70% reimbursed by SSConsultation with psychiatrist sector 2-3
Frequent excess fees in private practice. Partial coverage depending on insurance.
Depending on insuranceComplete neuropsychological assessment
4 to 8 hours of testing + written report. Private neuropsychologist. Not reimbursed by SS without medical prescription.
Insurance depending on contractExpert hospital center
Complete assessment covered by social security as part of hospitalization or outpatient consultation. Long waiting time.
100% reimbursed by SSTelemedicine platform
Initial remote consultation. Quick but does not replace the complete assessment. Variable depending on the platform.
Partially reimbursed3.2 Available support options
The reimbursement for the adult ADHD assessment depends on several factors: the type of professional consulted, the practice sector, and the coverage of the complementary health insurance. Here are the rules in effect in 2026.
| Type of assessment / consultation | Social security | Complementary health insurance | Other schemes |
|---|---|---|---|
| Consultation with the general practitioner (screening) | 70 % base SS | 30 % according to contract | — |
| Psychiatrist sector 1 | 70 % base SS | Supplement according to contract | — |
| Psychiatrist sector 2/3 | 70 % base SS only | Variable — check the contract | — |
| Private neuropsychologist | Not reimbursed (except with prescription) | Some mutuals: 200–400 €/year | AGEFIPH if RQTH (workplace adaptation) |
| Hospital assessment (expert center) | 100 % reimbursed | Co-payment according to mutual | — |
| Medication treatment (MPH) | 65 % base SS | Supplement according to contract | Renewal by general practitioner possible |
💡 Practical advice: To avoid the costs of the private assessment (400–900 €), the best route is to request a referral to a hospital ADHD adult expert center through the general practitioner. The wait is longer (6 to 18 months depending on the centers) but the assessment is covered 100 % by social security. For individuals in distress who cannot wait, the private assessment remains the quickest solution — to be checked with their mutual for partial reimbursement.
4. The post-diagnostic pathway: what to do after the assessment
4.1 From the assessment conclusion to professional adjustments
An assessment that concludes with ADHD is only useful if it is followed by concrete actions. For the employee, the neuropsychological report is the foundational document that can initiate several parallel processes: transmission to the occupational physician to structure workplace adjustments, RQTH application with the MDPH, and implementation of appropriate therapeutic follow-up (ADHD coaching, cognitive and behavioral therapy, possibly medication treatment).
Receipt of the neuropsychological report
Document provided by the neuropsychologist or psychiatrist. Describes the complete cognitive profile, confirms or excludes ADHD, and formulates recommendations. This document is strictly confidential — it belongs to the employee who decides alone to share it.
Consultation with the occupational physician
The employee can voluntarily and confidentially share the report with the occupational physician. The physician can then prescribe specific workplace adjustments (calm environment, telework, adapted organization) that are binding on the employer without revealing the diagnosis.
RQTH Process (optional)
The employee can submit a RQTH file to the MDPH (Departmental House for Disabled People) based on the neuropsychological report. The RQTH grants access to AGEFIPH funding for accommodations, the OETH quota for the employer, and certain additional protections in employment.
Implementation of Workplace Accommodations
Based on the recommendations of the occupational physician, the employer implements accommodations: quiet office or remote work, visual timer, adapted task structure, more frequent feedback, reduction of interruptions. These accommodations are independent of the RQTH — they can be implemented as soon as the first medical recommendations are made.
Therapeutic Follow-up and ADHD Coaching
Alongside workplace accommodations, appropriate therapeutic support significantly improves professional functioning: CBT (cognitive and behavioral therapy) specialized in ADHD, executive function coaching, ADHD peer groups. These supports may be partially funded through the MDPH or certain mutual insurance companies.
5. The Role of the Employer: What They Can Do, What They Cannot Do
5.1 What the Employer CANNOT Do
The boundary between managerial benevolence and interference in private life is clear from a legal standpoint. The employer cannot: ask an employee if they have ADHD or any other health issue, require the communication of a medical diagnosis, mention a presumed disorder in an annual review or HR document, directly refer to a specialist by suggesting a diagnosis, or condition a promotion or accommodation on the completion of an assessment.
These behaviors, even if well-intentioned, can constitute discrimination based on health status — a serious offense under the law of February 11, 2005, and the Labor Code. The rule is simple: you support observed behaviors and needs — you never diagnose.
5.2 What the Employer CAN Do
Refer to the Occupational Physician
Suggest a spontaneous visit to the occupational physician when persistent professional difficulties are observed. "If you are going through a difficult time, the occupational physician can help you" — without naming a disorder.
Inform About Available Resources
Communicate to all employees (not targeted) the existence of the Disability Mission referent, AGEFIPH aids, and the possibility of RQTH process — in a general and non-personalized manner.
Implement Preventive Accommodations
Establish neuro-inclusive team practices that benefit everyone: visual structures, regular feedback, short and structured meetings, accessible quiet space. No diagnosis is needed for this.
Responding to accommodation requests
When an employee requests an accommodation (with or without RQTH), handle it seriously and promptly. The obligation for reasonable accommodation applies as soon as a need is expressed — not just after RQTH.
Training managers
Deploy training on ADHD and neurodiversity for operational managers. A trained management team recognizes the signals, adapts its communication, and avoids costly misunderstandings.
Facilitate the RQTH process
If an employee mentions an RQTH process, support them administratively through the Disability Mission referent. Never initiate the process on behalf of the employee without their express consent.
6. Workplace adjustments for a diagnosed ADHD employee
6.1 Priority organizational adjustments
The ADHD diagnosis paves the way for structured workplace adjustments that can radically transform the professional performance of an employee who has been struggling. These adjustments are not "gifts" — they are legitimate compensations for a documented neurological deficit. They are funded by AGEFIPH for RQTH employees and fall under the obligation of reasonable accommodation for all.
| Adjustment | ADHD Benefit | Cost | AGEFIPH Funding |
|---|---|---|---|
| Remote work 2-3 days/week | Eliminates sensory overload from the open space, reduces interruptions | Free | — |
| Fixed workstation in a quiet or peripheral space | Reduces visual and auditory distractions | Free | — |
| Noise-canceling headphones | Filters sound interruptions, aids concentration | 150–300 € | Yes |
| Visual timer (Time Timer) | Materializes time, reduces time anxiety and procrastination | 20–40 € | Partial |
| Visual task management software (Trello, Asana) | Externalizes planning, reduces the load on working memory | Free/10 €/month | — |
| Short weekly feedback sessions (15 min) | Replaces annual feedback with regular anchoring, reduces anxiety | Free | — |
| Systematic written instructions | Compensates for failing working memory (keeping only oral) | Free | — |
| Professional ADHD coaching | Develops organizational strategies and executive function management | 100–200 €/session | Yes (partial) |
6.2 What medication changes — and does not change
Some diagnosed ADHD employees are prescribed medication based on methylphenidate (Ritalin, Concerta, Quasym) or atomoxetine (Strattera). These treatments, when appropriate and well-dosed, can significantly improve concentration, reduce impulsivity, and enhance emotional regulation. They do not "cure" ADHD — they reduce the most troublesome symptoms during their action time.
It is essential that neither the employer nor the manager suggest, comment on, or condition anything to the employee's medication treatment. The treatment is a strictly personal medical decision. The employer may observe an improvement in professional behaviors without knowing or commenting on the medical cause.
🎓 Train your managers to recognize and support ADHD at work
The training ADHD at work: recognize and support from DYNSEO provides your managers with the keys to identify signals, support without stigmatizing, direct to the right resources, and implement effective adjustments. Qualiopi certified, fundable by OPCO, deployable in multi-employee licenses.
7. ADHD in adults, RQTH and OETH: implications for the employer
7.1 ADHD as a recognized disability
ADHD is recognized as a disability under the law of February 11, 2005, when it has a significant impact on professional capabilities. The RQTH can therefore be granted for documented adult ADHD through a neuropsychological assessment — and an RQTH collaborator for ADHD counts towards the company's OETH quota. This reality is still unknown to many HR managers who associate disability with its visible forms (motor, sensory) and ignore that ADHD and other neuroatypical disorders represent a significant part of the RQTHs granted each year.
According to AGEFIPH data, RQTH recognitions for mental disorders (in which ADHD is classified) now represent more than 20% of new RQTHs granted annually — a proportion that has been growing significantly since 2018. This trend reflects both the increasing recognition of adult ADHD diagnoses and a better understanding of rights by the individuals concerned.
7.2 ROI of ADHD support in the workplace
The cost of inaction regarding an unsupported ADHD collaborator is documented and measurable. OECD studies (2021) estimate the productivity loss associated with untreated ADHD to be between 20 and 30% depending on the positions. On a team of 10 people, with one or two unsupported ADHD profiles, this represents a significant amount of uncreated value. Add to this the more frequent sick leaves (adults with ADHD have a sick leave rate 35% higher than average), accelerated turnover (an ADHD collaborator who feels misunderstood will leave sooner), and the recruitment cost of a replacement — and the business case for support becomes undeniable.
Conversely, a well-supported and properly accommodated ADHD collaborator can be an exceptional asset to their team: hyperfocus on stimulating projects, associative creativity, responsiveness in crisis situations, contagious enthusiasm, unconventional thinking. These strengths are real — they simply require the right context to express themselves.
8. Practical DYNSEO tools for managers and HR
🎯 Attention refocusing cards
Visual aids to help an ADHD collaborator refocus on their current task after an interruption.
Download →⚡ Impulsivity management sheet
Practical tool to identify triggers of impulsivity and develop regulation strategies at the office.
Download →⏱️ Visual timer
Time visualization tool — essential for ADHD collaborators with poor time perception.
Download →📊 ADHD prioritization matrix
Visual tool to help prioritize tasks and combat the feeling that "everything is urgent".
Download →✅ ADHD workstation adjustment checklist
Comprehensive guide to adjustments to be made for an ADHD collaborator — in order of priority.
Download →🗂️ Complete tools catalog
More than 50 practical tools for inclusive and neuro-inclusive management on a daily basis.
See all tools →9. DYNSEO applications for your ADHD collaborators
🟦 CLINT — Adults
Cognitive stimulation for adults — memory, attention, executive functions. Particularly recommended for employees with ADHD looking to enhance their attention and executive functions in a playful way.
Discover CLINT →🟨 SCARLETT — Seniors
Cognitive support for seniors. Suitable for senior employees with ADHD in a process of maintaining attentional capacities and cognitive well-being.
Discover SCARLETT →🟩 COCO — Children
Application for ages 5-10. Useful for employee parents of children with ADHD seeking cognitive stimulation tools to offer at home in addition to therapeutic follow-up.
Discover COCO →🟥 MY DICTIONARY — Communication
Alternative and augmented communication. Can support employees with ADHD who have difficulties with structured verbal or written expression.
Discover MY DICTIONARY →10. Going further: the DYNSEO B2B training catalog
DYS disorders in the workplace: identifying, adapting, and valuing
→ View the complete DYNSEO training catalog
→ Access DYNSEO cognitive tests
❓ FAQ — Adult ADHD Assessment and Workplace Support
1. Can a general practitioner diagnose adult ADHD?
A general practitioner can initiate the diagnostic process through standardized screening questionnaires (ASRS, Conners) and refer to a specialist — but the formal diagnosis of adult ADHD requires a complete neuropsychological assessment or an in-depth psychiatric consultation. In practice, some general practitioners specially trained in adult ADHD can make the clinical diagnosis and initiate medication treatment, but this case remains rare. Referral to an expert center or a neuropsychologist is still the recommended path by the HAS.
2. My colleague refuses to undergo an assessment. How can I help without forcing?
You cannot force a colleague to undergo an assessment — and you do not have to. Your role is to create the conditions for them to feel authorized: share information about available resources in general (for the whole team), mention that the occupational doctor can be consulted confidentially for any professional issue, and adapt your management to the observed needs without waiting for a diagnosis. Many colleagues take the step once they see that the company is supportive and not punitive towards requests for help.
3. Is the adult ADHD assessment reimbursed by Health Insurance?
It depends on the chosen path. An assessment conducted in a hospital expert center (on a waiting list) is covered 100% by Social Security. An assessment with a private neuropsychologist is not directly reimbursed by Social Security — but may be partially reimbursed by complementary health insurance (check the contract: some mutuals reimburse €200 to €400 for neuropsychological assessments per year). Psychiatric consultations in sector 1 are reimbursed at 70% of the SS base.
4. How long does the adult ADHD diagnostic process take from start to finish?
The average time between the decision to consult and receiving the neuropsychological report is 3 to 18 months depending on the chosen path: a few weeks with a quickly available private neuropsychologist, several months to a year and a half in a public expert center. In practice, many people start with a consultation with a general practitioner or a private psychiatrist (faster) and then complete it with a neuropsychological assessment. The realistic average time is 6 to 12 months.
5. After an ADHD diagnosis, is the colleague obliged to inform their employer?
No. The medical diagnosis is strictly personal and confidential information. The colleague has no legal obligation to inform their employer. They can choose to do so to obtain accommodations, but it is never an obligation. They can also request accommodations through the occupational doctor without revealing their diagnosis — the doctor prescribes adaptations without disclosing the medical cause to the employer.
6. Does adult ADHD always entitle one to RQTH?
Not automatically. RQTH is granted by the MDPH if the disorder has a "significant impact" on professional life. A well-compensated mild ADHD may not justify RQTH, while severe ADHD with comorbidities (anxiety, depression, sleep disorders) will clearly qualify. The MDPH file must include a recent neuropsychological assessment and a medical certificate from the psychiatrist or treating physician describing the functional impact on professional life.
7. Does the DYNSEO ADHD training at work cover the assessment and diagnostic process?
Yes. The DYNSEO training "ADHD at work: recognize and support" includes a complete module on the diagnostic process, available resources, the role of the occupational doctor, and RQTH procedures. It is designed for managers, HR directors, and Disability Mission referents — not for doctors. It is Qualiopi certified (N° 11757351875) and fundable via OPCO in the skills development plan.
8. Are there online tests to get a preliminary idea before consulting a specialist?
Yes. Validated screening questionnaires like the ASRS v1.1 (Adult ADHD Self-Report Scale) are available online and allow for indicative self-assessment. These tools do not replace a clinical diagnosis but can help a person understand if their difficulties warrant specialized consultation. DYNSEO also offers online cognitive tests at dynseo.com/nos-tests — non-diagnostic, but useful for exploring certain attentional and executive dimensions.
🚀 Train your managers to recognize and support ADHD
The training ADHD at work: recognize and support from DYNSEO provides your managerial and HR teams with all the keys to identify signals, support without stigmatizing, and implement the right adjustments. Qualiopi certified, fundable by OPCO, deployable in multi-employee licenses.
