Four NHS integrated care boards in England are forcing patients seeking attention deficit hyperactivity disorder and autism assessments to wait at least two years, according to disclosures revealing widespread rationing across the health service. The measures, adopted by 15 integrated care boards covering 19 million people, aim to manage surging demand and budget shortfalls by capping annual assessments and implementing strict clinical prioritisation criteria.
Why NHS Integrated Care Boards Are Imposing Minimum Waits
Surging requests for neurodiversity diagnoses have overwhelmed NHS capacity, leaving local health leaders struggling to balance their books against rising care costs. According to the West Yorkshire NHS integrated care board, its bill for independent provider assessments soared from £7m in 2023-24 to £21m last year, prompting the introduction of a mandatory two-year waiting time.
Fifteen integrated care boards across England have implemented various rationing tactics to curb spending. While West Yorkshire enforces a two-year minimum wait for independent provider assessments affecting 2.4 million people across Leeds, Bradford, Kirklees, Calderdale, and Wakefield, other regions report differing thresholds. The North East and North Cumbria integrated care board works to an approximately 78-week minimum waiting time, Somerset enforces a 52-week wait, and Devon maintains a 14-week minimum.
These restrictions arrive as 960,000 people in England wait for an ADHD assessment, alongside 295,000 awaiting evaluations for autism.
Did you know? Private clinics currently conduct half of all NHS-funded ADHD assessments and a third of autism evaluations as patients exercise their legal right to non-NHS care. However, new minimum wait policies often block patients from seeking those private sector alternatives immediately following a GP referral.
The Impact on Children, Adults, and Education
Patient advocacy groups warn that delayed diagnoses threaten educational attainment and mental health stability. Mel Merritt, head of policy and influencing at the National Autistic Society, stated that restricting access denies necessary support because diagnoses are often required to unlock vital school adjustments and care plans.
“For children, this can mean years of wasted school while they wait for an assessment and further waits to get a plan for support and adjustments to be put into place,” Merritt said.
Charity leaders argue that artificial delays push vulnerable individuals toward crisis services. Henry Shelford, chief executive of ADHD UK, denounced the policies as institutionalised cruelty that slams the door on people needing symptom evaluations to maintain employment and education.
Families unable to wait face mounting pressure to self-fund private evaluations costing several thousand pounds, widening health inequalities between those who can pay and those who cannot.
Upcoming Government Review and Surging Diagnosis Rates
The disclosures precede the publication of a 700-page government-commissioned review examining rapid increases in mental health, ADHD, and autism diagnoses. Wes Streeting, the then health secretary, ordered the review last year to address strains on NHS resources. Led by Professor Peter Fonagy, the report was unexpectedly postponed to early next month.
Draft findings indicate that fast-rising demand has driven patients toward private providers, raising concerns over assessment quality, consistency, and financial incentives linked to diagnostic activity. Data from the Clinical Practice Research Datalink highlights dramatic long-term increases in neurodiversity prevalence, showing that autism diagnoses among boys aged seven to 18 rose from 0.2% in 2000 to 4.7% in 2025.
Frequently Asked Questions
Why are NHS boards introducing minimum waits for ADHD and autism?
Integrated care boards cite severe budget constraints and soaring costs driven by unprecedented demand for neurodiversity assessments.
Can patients still use their legal right to choose private providers?
In regions with active minimum wait policies after a GP referral, patients are often restricted from accessing independent sector providers through NHS funding until the mandatory waiting period passes.
How many people are currently waiting for assessments in England?
Official figures show 960,000 people waiting for an ADHD assessment and 295,000 waiting for an autism evaluation.
What does the upcoming Fonagy review examine?
The review investigates the sharp rise in mental health, ADHD, and autism diagnoses, evaluating the consistency, quality, and financial drivers behind private and NHS assessment services.
Join the Conversation
Have you or a family member been affected by NHS assessment delays or minimum wait policies? Share your experiences in the comments below or subscribe to our newsletter for ongoing updates on healthcare policy.