Service : Autism Assessment Service
Service overview
We can assess you to see if you’re autistic.
Not everybody who is autistic needs a formal assessment for autism. However, you might find that a formal assessment may help you understand why you have a pattern of difficulties in areas of your life, such as:
- relationships
- employment
- education
- your mental health
We suggest first talking with your GP or mental health professional. You can talk to them about how autistic features might be having a negative impact in your life, to see if a referral can be made.
We do not accept self-referrals.
We use the DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, 5th Edition) classification of autism for our assessments. The DSM-5 is a guidebook for healthcare professionals to help us make a diagnosis.
The DSM-5 guidebook focuses on difficulties that may come with autism, such as processing and communication differences. However, we know that autism can also come with many strengths.
Our service is for people over the age of 17 years 6 months.
If you’re looking for information about getting an assessment for your child, or if you're a young person under this age, go to the service page for our children and young people's service.
Accessing our service
You must be aged 18 or over and registered with a GP in Berkshire.
We do not accept self-referrals. Speak to your GP or mental health professional about making a referral to our service.
Once we receive your referral, we will send you a some questions for you to answer. You can complete the questions online, or we can send paper copies to you.
Your answers will help us collect information which we will use to decide whether a full assessment might be helpful to you.
You will need to send your answers to our questions within 4 weeks. We won’t move your referral along until you send them back to us.
We’ll review your answers, and email you and your referrer to confirm whether we can offer you a full assessment.
If you need help completing the questions, your GP will let us know by ticking a box. We will then get in touch by calling or emailing you.
Priority assessment
We do offer some priority assessments based on evidence criteria. Your GP or mental health professional can request these.
Priority Criteria Autism
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What to expect from your assessment
Once you receive your appointment time, please confirm your attendance. Due to our extended waiting list, if you do not confirm your attendance within two weeks, then your appointment will be given to someone else.
A full assessment can take up to three hours, and will be carried out by one or two of our specialists.
We’ll ask you about your childhood, education, personal history, mental health, family circumstances, and your interests.
We’ll also ask you about your strengths and the sort of difficulties you’re having and assess your social communication skills.
It can be helpful if you can bring a partner, friend, or family member to the assessment. They can help with questions about you as a child and as an adult, and help you feel calm if you’re nervous about the appointment.
After your assessment
We aim to provide you with an answer at your appointment whether you’re autistic.
In some circumstances we may need to ask further questions, or take advice from other care professionals before we confirm a diagnosis.
We'll create a report which explains why we have, or have not, confirmed an autism diagnosis for you. We’ll also include adjustment recommendations to help you with your daily life.
We may offer you a place in our post diagnostic group, called Being Me. This group explores what it means to be autistic, adjusting to a late diagnosis and strategies that some autistic people may find helpful. Each session lasts up to two hours, and the group runs for 6 weeks.
If you’re not autistic, we may be able to guide you to other appropriate services so you can find the help you need.
Understanding autism
We’ve put together some easy‑to‑read leaflets with helpful information about Autism and the support our service provides.
What Is Autism?
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Autistic Burnout
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Autism Meltdowns And Shutdowns
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My Autism Assessment Appointment (Easy Read)
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Being Me Poster (Autism)
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For healthcare professionals
Information For GPs
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Autism Assessment Pathway
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Your e-Health Passport
Your e-Health Passport lets us know what's important to you - from your preferred name and pronouns to how you'd like us to support you and communicate with you.
Learn moreContact us and FAQs
Adult Autism Assessment Team
Contact number: 0118 904 4600 We’re open from 9am to 5pm, Monday to Friday.
Email: neuropsychology@berkshire.nhs.uk
Postcode: RG1 5LR
Location detailsFrequently Asked Questions
How much longer will I be waiting for an assessment?
Our autism assessment waiting list is currently over 4 years from time of referral.
I have been referred but I have not heard anything?
Our first contact with you will be to request that you complete some questionnaires online to determine suitability for a diagnostic assessment. Please contact us if you haven’t received these within 1 month of your referral.
Can my referral be prioritised?
Please be aware that very few clients can be prioritised. Our current priority criteria can be found here.
See above for priority criteria.
What support can I access while on the waitlist?
We can’t directly offer support for you while you’re on our waitlist.
However, there are charities and local communities you can contact.
You can visit the Autism Berkshire website for more information and advice, and local support.
GEMS provides autism and ADHD support services in East Berkshire. It's available for anyone aged up to 25 years diagnosed with autism and/or ADHD living in Slough, Windsor, Maidenhead and Bracknell Forest.
The Berkshire West Autism & ADHD Support Service provides advice, workshops and courses for people aged up to 25 who are autistic or have ADHD.
Will I be prescribed medication?
There is no medication for autism. If you're autistic your assessment will include recommendations to support you to manage challenges associated with autism.
Do I need to bring anything from my childhood with me to my assessment?
If you have any reports from other professionals, primary school or early secondary school, and/or your red book, please bring them with you, as these may help us understand you better.
Can I see the assessment questions first before my appointment?
The questions that will be asked will differ from person to person. These depend on your age and your current strengths and challenges. If you are worried about being put on the spot, please understand that we can revisit questions once you have had time to think about them. If you would prefer to communicate via writing, rather than speaking, please let us know. If you are highly anxious about visiting somewhere new or meeting new people, please let us know. We can consider an online assessment, but would like to talk to you about the advantages and disadvantages of being assessed online.
We can also help you with
Is there any information for friends, family and carers?
If you’re a family member, carer, or you look after someone, there’s practical, financial, and emotional support available from a range of local communities and national organisations.
How do I request an interpreter?
We can provide language translation and interpretation support.
Tell our staff which language you prefer to use, and we will make sure the right communication support is in place for your assessment and treatment. Please let us know as early as possible so we can ensure the appropriate translation or interpreting support is available.
We offer a range of professional services to ensure everyone can understand and be understood:
- Telephone interpreting
- Video remote interpreting (VRI)
- Face‑to‑face interpreting
- Written translation
- British Sign Language (BSL) interpreting
How can I get information in an accessible format?
Anyone with a disability, impairment, or sensory loss has the right to get information in a format that meets their needs.
The Accessible Information Standard (AIS) is a legal requirement for all health and adult social care providers. This means making sure that people who use our services, including carers and families, can understand our information and communicate with us easily.
We can offer information in a range of accessible formats, including:
- British Sign Language (BSL)
- Large print
- Braille
- Audio
- Easy read
- Text message
- Face‑to‑face support with a carer or advocate present
If you need information in any of these formats, please tell a member of our team and we will make sure your communication needs are met.
Are service dogs allowed to my appointment?
Yes, you are welcome to bring your registered service animal, such as a guide dog, hearing dog, medical alert dog, or other trained assistance dog to your appointment.
These animals are recognised as essential support and are permitted in most areas of our services.
To help us prepare, please let the team know before your appointment if you will be attending with a service animal. This allows us to make sure the environment is safe and comfortable for you, your animal, and other patients.
Please note that service animals may not be able to enter certain restricted clinical areas for safety or infection‑control reasons, but we will always work with you to find an appropriate alternative.
What does it mean to treat our team with respect?
Respect is important.
We will be polite and kind and we expect that you treat our staff in the same way.
Abuse, hate and discrimination against our staff is unacceptable.
We will take strong action against anyone who is verbally, racially, physically, or sexually abusive to them.
This may include contacting the police to prosecute, and stopping future access to our healthcare services.
How do I find my NHS number?
The easiest way to find your NHS number is using the official NHS online service which can be accessed below.
You may also want to read our guidance page for more information about other ways to find your NHS number or what to do if you cannot find yours.

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