What if autism and ADHD both seem relevant when I am looking for assessment in the UK?
Autism and ADHD can be considered alongside one another, but local services may use separate referrals, combined neurodevelopmental pathways or different teams, so one assessment route should not be assumed to cover everything.
Current understanding
Autism and ADHD are different neurodevelopmental conditions and one does not automatically rule out the other. A diagnostic assessment should consider whether the reported difficulties are better explained by another condition and whether co-occurring conditions may also be present. Operationally, local UK services differ: some use broad neurodevelopmental pathways while others require separate autism and ADHD referrals or teams. If both seem relevant, ask the GP/referrer or assessment service whether the local pathway can consider both, whether a second referral is needed, and how information from one assessment will be shared with the other. ND Oracle cannot infer from a person's traits whether they have autism, ADHD, both or neither.
Related things to inspect
Related questions
- Do I have to disclose neurodivergence or disability at work to ask for support?
- Do I need to tell DVLA about ADHD or another neurodevelopmental condition in Great Britain?
- How do I seek an ADHD assessment for a child or young person in England?
- How do I seek an ADHD assessment for a child or young person in Wales?
- How do I seek an autism assessment for a child or young person in England?
What evidence is still needed
- Current nation- and locality-specific combined versus separate autism/ADHD referral arrangements for adults and children.
- Clearer public guidance on transfer of assessment evidence between neurodevelopmental services.
Where people may disagree
- Shared traits can arise for different reasons; recognising possible co-occurrence should not turn overlap into automatic dual diagnosis.
When this answer should be revisited
- National or local services materially change combined neurodevelopmental assessment pathways.
- NICE or equivalent diagnostic guidance materially changes co-occurring-condition assessment requirements.
Question provenance and review state
Cross-UK co-occurring assessment question assembled from governed autism/ADHD Concepts and current assessment guidance. It explains route structure without inferring diagnoses from a person's traits.