Accessibility
Fiducia Together logoFiducia Together

Neurodevelopmental assessment

The NHS pathway to an autism or ADHD diagnosis. Long, and not a precondition for support.

Please note: This page explains a word or a process in education. It is general information about the system, the law and the guidance in England — not advice about your child, your school or your exam. If a decision is going against you, get advice from one of the free services we link to before you agree to anything or miss a deadline. If you are revising, check your own exam board's specification: boards word things differently and yours is the one that marks you.

What it is

A neurodevelopmental assessment is the multi-disciplinary process leading to a diagnosis of autism, ADHD or a related condition. It typically involves questionnaires, school observation, developmental history and a clinical assessment.

Where it applies

Children and young people referred through a GP, paediatrician or school.

How it works

NICE guidance sets out what an assessment should involve and expects it to begin within a defined period of referral. In practice waits of two years or more are common in many areas.

The Right to Choose route allows referral to an alternative provider in some circumstances, which some families use to shorten waits.

What you can ask for

Ask the school to put support in NOW. A diagnosis is not required for SEN support, for reasonable adjustments or for an EHC needs assessment, and waiting for one costs years.

Ask where you are on the waiting list and what the current wait is, in writing.

Ask about Right to Choose if the local wait is very long.

Where to get help

Your GP, and the National Autistic Society and ADHD UK for what to expect. SENDIASS on getting support without a diagnosis.

Where to read more

Last reviewed 2026-08-28 by Fiducia Together · Next review due 2027-08-28

Please note: This page explains a word or a process in education. It is general information about the system, the law and the guidance in England — not advice about your child, your school or your exam. If a decision is going against you, get advice from one of the free services we link to before you agree to anything or miss a deadline. If you are revising, check your own exam board's specification: boards word things differently and yours is the one that marks you.

Accessibility toolkit

Done

Profiles


Text

Text size100%
Off
100%

Colour & contrast


Reading & focus

Saved to this browser for 6 months. Signed in to a Fiducia app? Set it up there instead and it follows you onto any device.

Cookies on this site

We use one cookie to remember your reading and accessibility settings, and one to remember this choice. Neither is used to track you. This site sets no advertising or analytics cookies of its own, and visits are counted on our own server, so nothing follows you off this page. Read our privacy policy.