Why the UK Needs More Trained ADHD Diagnostic Assessors

The UK's ADHD assessment waiting lists have become a well-documented problem. Referrals to NHS neurodevelopmental services have risen sharply in recent years, and in many areas children, young people, and adults now wait months or years for a diagnostic assessment. Behind that headline figure is a simpler, practical issue: there are not yet enough clinicians trained to carry out thorough, accurate ADHD assessments.

Closing that gap is not only about numbers. A rushed or under-trained assessment carries its own risks - unnecessary medication, missed comorbidities, or a diagnosis that does not hold up to later scrutiny. Building capacity safely means training more clinicians properly, not just training more clinicians quickly.

Why Training Matters as Much as Headcount

A confident ADHD diagnostic assessor needs more than familiarity with the DSM-5 or ICD-11 criteria. They need practical skill in using validated tools such as the DIVA-5, Conners 4, and QbCheck; the judgement to weigh school reports, developmental history, and collateral information; and an understanding of the neurodevelopmental and mental health conditions that commonly overlap with ADHD, from autism to anxiety disorders. None of this comes from reading guidance alone - it is built through structured training, supervised practice, and ongoing mentorship.

Who Can Help Expand Capacity

NICE guidance (NG87) is clear that ADHD should be diagnosed by a specialist psychiatrist, paediatrician, or another appropriately qualified healthcare professional - it does not restrict this to a single job title. In practice, that means GPs with extended roles, nurse specialists, psychologists, and appropriately trained pharmacists all have a part to play, provided they receive proper training and work within a recognised ADHD pathway.

Widening who can be trained, without lowering the standard of training, is one of the more realistic ways to bring waiting times down while keeping assessments safe and accurate.

If you are a healthcare professional considering this path, structured training with real mentorship - not just a single workshop - is what will make the difference in practice.