THE SEND LIST GUIDE
Waiting for a Diagnosis
A complete, parent-friendly guide to navigating the SEND assessment process — what to do, who to contact, and how to support your child.
Find a Specialist Near YouEvidence-based • UK-focused • Written for parents • Updated 2026
What is it like waiting for a SEND diagnosis?
Waiting for a formal SEND assessment is one of the most stressful and uncertain experiences a parent can face. With NHS waiting times stretching to two years or more in many parts of England, families are left to navigate school, daily life and mounting concerns without the support a diagnosis can unlock.
This guide brings together everything UK parents need to know — from understanding the diagnostic process to getting school support now, building your evidence and looking after your own wellbeing while you wait.
Common experiences while waiting
- ✓ Being told school support requires a formal diagnosis (it doesn’t)
- ✓ Long NHS waiting lists with no clear timeline or updates
- ✓ Uncertainty about whether to pursue a private assessment
- ✓ Exhaustion from fighting systems while also supporting your child
- ✓ Isolation because friends and family don’t understand the process
Average NHS wait in England
2+ years
for an autism or ADHD assessment in many areas
In this guide
Eight in-depth topics to help you navigate every stage of the diagnostic journey
Understanding the Diagnostic Process
What to expect from referral to assessment — NHS and private routes explained.
Read more →Supporting Your Child While Waiting
Practical strategies for managing behaviour, anxiety and daily life during the wait.
Read more →Getting School Support Without a Diagnosis
How to access SEND support, request an EHCP assessment, and work with the SENCO.
Read more →Building Your Evidence
What to record — school reports, GP letters, diaries — and why it matters.
Read more →NHS vs Private Pathways
Comparing costs, wait times, and how private reports are accepted by schools.
Read more →What Happens After a Diagnosis
Next steps — support plans, school reviews, telling your child.
Read more →Emotional Support for Parents
Support groups, helplines and how to look after yourself during a stressful process.
Read more →When to Push for a Faster Assessment
Red flags, crisis referrals and how to escalate when the wait is causing real harm.
Read more →Finding the right support makes a real difference
The SEND List connects families with educational psychologists, ADHD assessors, speech therapists and occupational therapists across the UK — many of whom work with children before, during and after the diagnostic process.
Browse SpecialistsFrequently asked questions
Do I need a diagnosis to get school support for my child?
No. Schools in England have a legal duty under the SEND Code of Practice to support pupils with special educational needs regardless of whether a formal diagnosis exists. Speak to the SENCO about SEN Support and reasonable adjustments — these should not depend on a diagnosis.
How long does the NHS assessment process take?
NHS waiting times vary significantly by region and condition. In many parts of England, families wait 18 months to 3 years for an autism or ADHD assessment. Waiting times for other assessments (speech therapy, occupational therapy) also vary. Your local SENDIASS service can advise on typical wait times in your area.
Should I get a private assessment?
Private assessments are significantly faster (often within weeks) but can cost between £800 and £3,000. Schools and local authorities must give serious consideration to private reports. If you remain on the NHS waiting list at the same time, a private assessment does not remove your place in the queue. The right choice depends on your child's urgency and your financial situation.
What is an EHCP and does my child need one?
An Education, Health and Care Plan (EHCP) is a legally binding document that specifies the support your child is entitled to in education. It is appropriate for children with significant and complex needs that cannot be met through standard SEN Support. You can request an EHCP needs assessment from your local authority at any time — a formal diagnosis is not required to make this request.
How do I look after myself while waiting?
The wait is genuinely hard on parents. Connecting with other families through local parent carer forums, national charities like Contact, or online communities can help enormously. Your GP can refer you for talking therapies if you are struggling significantly. SENDIASS services can also provide emotional support alongside practical advice.
Your child deserves the right support
The SEND List makes it easier for UK families to find qualified specialists — from educational psychologists to occupational therapists — who can help before, during and after a diagnosis.