Private Autism Assessments (Age 16+) Virtual Nationwide Service | Recognised Clinical Diagnosis | Neuroaffirmative
We offer comprehensive private autism assessments for people aged 16 and over, delivered virtually across the UK.
Your assessment includes:
- A full ICD-11 diagnostic evaluation
- Gold-standard structured clinical interviews
- A validated, recognised autism diagnosis
- A detailed clinical report
- Clear, practical recommendations for e.g.
- Workplace adjustments
- Education
- Healthcare
- Social care
- Daily living
Our goal is to empower every autistic person with understanding, clarity, and access to appropriate support.
Specialist Adult Autism Assessment Clinicians (UK)
Private Autism Assessments for Adults | ICD-11 Diagnostic Criteria | Neurodiversity-Affirming | 40+ Years NHS Experience
At Affirming Autism, we provide specialist private adult autism assessments carried out by highly experienced clinicians with over 40 years of combined NHS autism diagnostic experience. Our team continues to work within specialist NHS autism services, ensuring our private assessments are aligned with the most current clinical standards and best practice.
We deliver comprehensive, evidence-based autism assessments for adults using the ICD-11 diagnostic criteria, ensuring your diagnosis is clinically recognised, accurate, and tailored to your lived experience.
Our approach is neurodiversity-affirming, respectful, and inclusive. We recognise the diversity of autistic identity and aim to make the assessment process supportive, validating, and empowering.
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Natalie Hewitt – Director of Clinical Services
Consultant Speech and Language Therapist | Specialist in Adult Autism Assessments
Natalie is a Consultant-level clinician with advanced expertise in ICD-11 autism diagnostics for adults. She specialises in:
- Complex or late-identified autism
- Women and non-binary autistic profiles
- Autism with overlapping ADHD or mental health needs
As a university lecturer in neurodevelopmental conditions, she brings current research and clinical knowledge into every assessment. Natalie uses gold-standard tools and provides a calm, validating, neuroaffirmative environment throughout the diagnostic process.
Her goal is to support adults seeking clarity, recognition, and understanding after years of feeling misunderstood.
Ruth Guy – Director of Client Care and Compliance
Autism Specialist Practitioner | Clinical Nurse Specialist | Neurodivergent Expert by Experience
Ruth is a neurodivergent clinician with over 20 years’ experience in mental health crisis services and community mental health. Her lived experience within a neurodivergent family provides deep insight into the autistic community.
Ruth specialises in supporting individuals with:
- Trauma histories
- Complex emotional needs
- Previous misdiagnosis (e.g., EUPD)
- Late-identified autism
She ensures all assessments are clinically robust, compassionate, and delivered through a clear neuroaffirmative lens.
Specialist Training in Adult Autism Assessment
Expert Clinicians | Trained in Gold-Standard Autism Diagnostic Tools | Neurodiversity-Affirming Approach
All Affirming Autism clinicians are specially trained in assessing autistic adults using recognised tools, including:
- ADOS-2
- ADI-R
- ACAI
- Royal College of Psychiatrists Clinical Interview for Able Adults
- Mental State Examination
- Structured communication and behavioural observations
Our assessments are evidence-based, thorough, and aligned with ICD-11 criteria, enabling accurate, meaningful diagnoses that reflect diverse autistic presentations.
Not Sure if You Might Be Autistic?
A helpful starting point is the AQ-10 screening tool – a brief, evidence-based questionnaire used to explore autistic traits.
👉 Click here to complete the AQ-10 https://docs.autismresearchcentre.com/tests/AQ10.pdf
A score of 6 or above may indicate that you would benefit from a full autism assessment.
Thinking About an Autism Assessment?
Whether this is your first time exploring autism or you’re seeking a second opinion, we offer both:
✔ Full Adult Autism Diagnostic Assessments
✔ 1-Hour Screening Appointment with a Qualified Clinician
(Screening fee deducted from the full assessment if you proceed)
If you're ready to take the next step, we’re here to guide you with professionalism, compassion, and respect.
👉 Book Your Assessment
👉 Book a Screening Appointment
👉 Contact Us for Advice
To book an assessment:
You can pay and book an Autism Diagnostic Assessment on line here.
Alternately, please email or phone us to discuss arranging an appointment for an assessment.
We can usually offer appointments within a few weeks of your request. We only show limited availability on line, but may be able to offer more flexibility if you contact us to ask.
Screening assessments are available much sooner and there is no need for you to prepare.
Telephone: 01625315003
E-mail: info@affirmingautism.co.uk
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