At a glance
- NHS autism assessment pathways differ for adults and children
- Referrals are typically made through GPs, paediatricians, or health visitors
- NHS waiting times can range from 6 months to 3+ years depending on region and age
- Right to Choose may allow access to alternative NHS-funded providers
- Private autism assessments are an option but come with cost trade-offs
The NHS autism assessment landscape is in active change. The 2026/27 NHS Payment Scheme introduced ICB-level caps that may affect Right to Choose capacity. NHS England's transition to the Department of Health and Social Care by around 2027 may further reshape commissioning. ICBs are also being reduced from 42 to 26 through 2025-26. Always check local NHS guidance and the eligibility checker for the most current information.
Many adults and parents in the UK are unsure how to begin the process of getting an autism diagnosis. Referral pathways can vary depending on age, location, and the services available locally.
This guide provides an overview of how autism diagnosis works in England, including NHS referral pathways, waiting times, Right to Choose options, and private assessment alternatives.
Find Care Compare provides guidance and tools to help patients understand these pathways and explore available providers.
Understanding autism traits
Some adults begin exploring autism diagnosis after recognising patterns in communication, social interaction, or sensory experiences. For children, parents may notice differences in development, communication, or behaviour.
Autism is a neurodevelopmental condition that affects how a person experiences and interacts with the world. Traits vary widely from person to person, and recognising patterns is often the first step toward considering assessment.
Autism assessments for adults
Adult autism assessments are typically carried out by specialist clinicians with expertise in neurodevelopmental conditions. They usually involve detailed clinical interviews, developmental history, and structured questionnaires.
What to expect from an adult autism assessment in the UK.
Autism assessments for children
Children may be referred for autism assessments through GPs, paediatricians, health visitors, or school health teams. Assessments are typically delivered by paediatric teams or Child and Adolescent Mental Health Services (CAMHS), and often involve input from schools or nurseries.
How child autism assessments work in the UK, including referral pathways and waiting times.
How to get an autism diagnosis
For many people, the first step toward diagnosis is speaking with a GP and requesting referral for an autism assessment. The pathway may differ depending on age, region, and local service availability.
Step-by-step guide to getting an autism diagnosis through NHS or private routes.
NHS autism waiting times
Waiting times for autism assessments vary widely across England due to differences in local service capacity. In many areas, waits range from six months to over three years.
Current NHS autism assessment waiting times across England.
Right to Choose autism assessments
Under the NHS Constitution, patients in England referred for their first outpatient appointment have the legal right to choose their provider. This includes autism assessments. However, your GP must first agree that a referral is clinically appropriate.
Right to Choose assessments are NHS-funded and free to the patient — you do not pay for the assessment itself.
How Right to Choose works for autism assessments in England, who's eligible, and how to request a referral.
Check your Right to Choose eligibility
Our free eligibility checker helps you understand whether you may be able to use Right to Choose for your autism assessment.
Check eligibilityNHS vs private autism diagnosis
Some patients explore private autism assessments if NHS waiting lists are very long. Private providers typically allow patients to book assessments directly without joining an NHS waiting list, though fees commonly range from around £1,500 to £3,000.
Compare private and NHS autism diagnosis options, costs, and timelines.
Compare autism assessment providers
If you are exploring autism diagnosis options, it can be helpful to understand the available referral pathways and providers.
Explore autism assessment providers
Find Care Compare helps patients explore NHS and private autism assessment providers. You can:
- Browse providers accepting Right to Choose referrals
- Compare waiting times and assessment formats
- Understand what each provider offers
Frequently asked questions
Sources
This article summarises publicly available information from:
Sources referenced include:
- NHS England — autism assessment guidance
- NICE — autism diagnosis guidelines
- NHS England — Choice Framework
- National Autistic Society — autism resources
- Department of Health and Social Care — autism strategy
Related guides
Autism Right to Choose explained
How Right to Choose works for autism assessments in England, who's eligible, and how to request a referral.
Read guide GuideAutism diagnosis waiting times
Current NHS autism assessment waiting times across England.
Read guide GuideAdult autism assessment in the UK
What to expect from an adult autism assessment in the UK.
Read guide GuideChild autism assessment in the UK
How child autism assessments work in the UK, including referral pathways and waiting times.
Read guide