To help make an informed decision, RTN can use pre-assessment screening tools to identify symptoms you might experience. Note that this is not a diagnosis, but instead an indication of which traits are currently present which can help to inform your decision. Remember, to avail of the same discounted prices presented on the NTI website, you need to apply discount code NTI100 at the RTN checkout.
Neurodiversity Diagnostic Assessments UK
Do you need an Autism and/or ADHD Diagnosis?
If you are based in the United Kingdom or Ireland and are unfortunately experiencing sleepless nights, constant worry, and have a pressing need for reliable support, you're not alone. We understand the challenges of living with undiagnosed Autism and ADHD, and we're here to help you find clarity and peace of mind.
Our compassionate and affordable assessment service offerings are designed to empower you. Say goodbye to long wait times and high fees—our diagnostic offers starts from just over £800.
Each assessment is conducted online by a dedicated, multi-disciplinary clinical team, fully accredited and recognised by the NHS (and the HSE in Ireland), and aligned with NICE guidelines. The team at NTI is also committed to providing you with the support you need on your journey to understanding and managing your challenges.
Get Your Diagnosis Started Today
Here’s what an Autism and/or ADHD diagnostic assessment service includesÂ
Full ADHD and/or Autism Diagnostic - Our trusted partner's experienced multi-disciplinary clinical teams will conduct a thorough assessment, leaving no stone unturned. They will evaluate behaviours, experiences, and challenges, providing a comprehensive diagnosis that forms the foundation for tailored support.
Detailed Report for Enhanced Support – Gain access to a comprehensive report that goes beyond the diagnosis itself. The completed report is extremely thorough and detailed. Perfect for schools, GP's, and workplace's (whichever is relevant). Their dedicated team will guide you through a post-diagnosis online session, providing invaluable support and answering your questions.
Post-Diagnosis Online Session – We believe that ongoing support is vital after an autism diagnosis. That’s why our partners all offer a dedicated online session with a member of their team. This session allows you to ask questions, seek guidance, and gain a deeper understanding of the next steps on your journey.
Flexibility with Payment Options – Finances should never be a barrier to understanding, hence flexibility is offered with the payment options, including the ability to pay in convenient instalments. Our mission is to make high-quality autism assessments accessible to all individuals and families, regardless of their financial circumstances.
Let's get you Booked Up!
Our Trusted Partner in the UK & ROI
RTN works with communities and corporates to ensure individuals can achieve better mental health outcomes, without spending thousands or languishing on waiting lists.
Across both the UK and Ireland, waiting times for diagnoses can be as long as two years. Private assessments are often financially inaccessible and can have complex pricing structures. RTN provides an affordable and speedy assessment process to ensure Neurodivergent people and their networks can receive the right support.
Meet some of the RTNÂ team
Dr Ann Steele
Clinical Psychologist, BSc Hons (First Class)Â
MSc Oxon, DPhil Oxon, DClinPsy
Ann is a Clinical Psychologist with over 10 years of experience working in the NHS and in independent practice. Ann also provides teaching and supervision to other mental health professionals training within the NHS.
Dr Charmain Round
Clinical Psychologist, DClinPsy
A Chartered Clinical Psychologist with over 25 years’ experience working in the NHS providing assessment, therapy, training, support and consultation to neurodiverse adults and children, their families, support networks and other professionals.Â
Dr Renata Fialho
Clinical Psychologist, Masters, PhD
Dr Renata Fialho works in an NHS specialist service at the general hospital, having developed extensive experience with Post covid syndrome, depression, anxiety, emotional difficulties associated with chronic illness, physical persistent symptoms, and Functional Neurological Disorders.
 The RTN Promise
- A full diagnostic assessment will be conducted by their expert multi-disciplinary team.
- Commence your assessment within 2 weeks of booking.
- A comprehensive screening, triage and mental health assessment to consider comorbid conditions & differential diagnoses.
ADHD Diagnosis forÂ
Children**
ÂŁ89.50 Booking DepositÂ
The list price is ÂŁ895 and once you have paid the deposit at checkout, the remaining balance will be ÂŁ805.50. This balance is payable to RTN and can be paid in 3 x instalments.
 ** A child is defined as someone under the age of 18
Book NowADHD Diagnosis for Adults*
ÂŁ89.50 Booking DepositÂ
The list price is ÂŁ895 and once you have paid the deposit at checkout, the remaining balance will be ÂŁ805.50. This balance is payable to RTN and can be paid in 3 x instalments.
 * An adult is defined as someone over the age of 18
Book NowAutism Diagnosis for Adults*
ÂŁ115.00 Booking DepositÂ
The list price is ÂŁ995 and once you have paid the deposit at checkout, the remaining balance due will be ÂŁ880. This remaining balance is payable to RTN and can be paid in 3 x instalments.
 * An adult is defined as someone over the age of 18
Book NowAutism Diagnosis forÂ
Children**
 £125 Booking Deposit  Â
The list price is £1,250 and once you have paid the deposit at checkout, the remaining outstanding balance will be £1,125. This balance is payable to RTN and can be paid in 3 x instalments.
 **A child is defined as someone under the age of 18
Book NowCombined ADHD & Autism Diagnosis for Adults*
ÂŁ215 Booking DepositÂ
The list price is ÂŁ1,590 and once you have paid the deposit at checkout, the remaining balance will be ÂŁ1,375. This balance is payable to RTN and can be paid in 5 x instalments.
 * An adult is defined as someone over the age of 18
Book NowCombined ADHD & Autism Diagnosis for Children**
ÂŁ215 Booking DepositÂ
The list price is ÂŁ1,995 and once you have paid the deposit at checkout, the remaining balance will be ÂŁ1,780. This balance is payable to RTN and can be paid in 5 x instalments.
 ** A child is defined as someone under the age of 18
Book NowEndorsed and supported by NTI
"Every day, I hear from parents, families, and adults searching for fast, affordable autism diagnoses. RTN is finally offering what has been desperately needed: quick assessments at an accessible price, delivered with the highest standards of care. RTN’s compassionate and professional team is making a real difference in the lives of so many. This heart-led firm comes highly recommended."
Jude Morrow, CEO and Founder of NTI
Need Help Before Deciding On The Right Diagnostic Option For You?
Click HERE to book a free 15 minute screening call with NTI. Telephone and video call options available.
Frequently Asked Questions
Is it possible to speak to someone to help me make a more informed decision?
Can I also book directly with RTN?
Can anyone get an assessment?
Will my diagnosis with RTN meet the NICE guidelines?
What if I’m still unsure as to what assessment to take?
Can I change from a single assessment to a combined one?
Will my RTN diagnosis be recognised by the NHS?
Is it possible to spread the cost of the assessment?
Why do I need to complete a consent form?
Do you triage customers before proceeding with assessments?
How do I book an assessment?
How do I complete the questionnaires?
Do I need to provide any supporting information?
What happens at the diagnostic Interview?
What can I expect in the diagnostic Report?
Can I provide RTN with feedback?
Can you prescribe medication?
