ADHD in Children & Teenagers – A Parent's Guide
If you are concerned your child or teenager might have ADHD, this guide explains the assessment routes in the UK, what to expect, and how to get the right support at school and home.
ADHD in children — what to look for
In children, ADHD often presents as difficulty sitting still, acting before thinking, trouble following instructions, problems focusing on tasks that require sustained effort, and difficulty in peer relationships. In teenagers, symptoms can look more like disorganisation, forgetfulness, emotional sensitivity, and underachievement despite apparent ability.
Assessment routes for children
The main route for child ADHD assessment is via CAMHS (Child and Adolescent Mental Health Services), a free NHS service. However, CAMHS waiting times of 2–4 years are common. Private child ADHD assessments with paediatric psychiatrists or psychologists are available at most private ADHD clinics, typically costing £500–£1,500.
Right to Choose for children
The NHS Right to Choose scheme primarily applies to adult mental health assessments, but some Integrated Care Boards (ICBs) have extended it to paediatric neurodevelopmental referrals. Ask your child's GP whether your local ICB allows Right to Choose for paediatric ADHD assessments.
School support and Education, Health and Care Plans
An ADHD diagnosis can support a request for an Education, Health and Care (EHC) Plan assessment, which can lead to additional support in school. Even without an EHC Plan, a diagnosis can trigger SEN support including extra time in exams, access arrangements, and a tailored classroom approach. Speak to your child's school SENCO (Special Educational Needs Coordinator).
Frequently asked questions
Can children be diagnosed with ADHD privately in the UK?
Yes. Private paediatric psychiatrists and psychologists can diagnose ADHD in children. The diagnosis carries the same validity as an NHS diagnosis and should be accepted by schools and local authorities when requesting SEN support.
At what age can ADHD be diagnosed?
ADHD can be formally diagnosed from age 5 onwards, though some clinicians prefer to wait until a child is in school to assess functional impairment in a structured setting. There is no upper age limit for diagnosis.
Does my child need medication for ADHD?
Not necessarily. NICE guidelines recommend that medication should not be the first-line treatment for children under 5, and for older children, parent training and psychoeducation should be offered alongside or before medication. For school-age children with moderate-to-severe ADHD, medication combined with behavioural approaches is typically most effective.