Definition
ADHD is a neurodevelopmental condition affecting attention regulation, impulse control, and activity levels, diagnosed in the UK against ICD-11 / DSM-5 criteria under NICE guideline NG87. It co-occurs frequently with autism, dyslexia, and anxiety, and presents differently in girls.
In context for parents
Key checkpoints
- ADHD is a neurodevelopmental condition affecting attention regulation, impulse control, and activity (ICD-11 / DSM-5).
- UK pathway follows NICE NG87 (2018); 12-week assessment standard, reality in 2026 is 1–3 year waits.
- DSM-5 presentations: predominantly inattentive, predominantly hyperactive-impulsive, combined.
- Girls are diagnosed later because hyperactivity often presents internally.
- ADHD alone does not automatically meet the EHC needs assessment threshold; co-occurring needs often move the case across the line.
In an English NHS pathway, ADHD is diagnosed by a paediatrician or child psychiatrist after a developmental history, school observations, and rating scales (Conners 3 or SNAP-IV are standard). NICE NG87 says assessment should follow within 12 weeks of referral. In 2026 most areas run between 1 and 3 years on the waiting list, and Right to Choose into independent providers (NHS standard contract, section 6.1.2) has become the route a growing number of families use.
The DSM-5 splits ADHD into three presentations: predominantly inattentive, predominantly hyperactive-impulsive, and combined. The inattentive presentation is the one schools miss most often: a child who is not disruptive but who has not started the worksheet by minute 12. Girls are disproportionately diagnosed late because their hyperactivity tends to be internal (racing thoughts, fidgeting under the desk, social over-talking) rather than the running-around picture in the diagnostic literature.
Medication (methylphenidate or lisdexamfetamine first-line under NICE NG87) is one tool, never the whole answer. School-side adjustments that actually move the needle: movement breaks built into the timetable rather than offered after dysregulation; instructions written down as well as spoken; access arrangements at GCSE (25% extra time, supervised rest breaks; the school's exams officer applies via JCQ).
For the EHCP question: ADHD on its own does not automatically meet the threshold for an EHC needs assessment. The test under s.36(8) Children and Families Act 2014 is whether the child may need provision the school cannot reasonably make from its delegated budget. Co-occurring needs (anxiety, sensory, SLCN, dyslexia) frequently move a child over that line.
Related terms
The terms parents most often see alongside ADHD.
Executive Function
The brain's set of self-management skills: planning, starting and stopping tasks, organising, switching attention, and impulse control. Frequently affected in ADHD, autism, and dyspraxia.
Autism(ASC)
A lifelong neurodevelopmental condition that shapes how a person communicates, processes sensory information, and experiences the social world. Autism is a difference, not an illness.
Working Memory
The ability to hold and manipulate information in mind over short periods, for example following multi-step instructions or doing mental arithmetic. Often a key area of need in SEND.
Spiky Profile
A pattern of unusually uneven strengths and difficulties across cognitive or learning domains. Common in neurodivergent learners and often visible across WISC index scores.
Where parents ask about this
Parents usually find this page after a teacher has used the word "ADHD" at parents' evening, or after a private assessment letter has landed and school is asking what they're meant to do with it. Searches that lead here include "ADHD diagnosis private vs NHS", "Right to Choose ADHD", and "school won't accept private ADHD report". A Beaakon specialist (an EP or a paediatric SaLT, depending on the co-occurring picture) can read the diagnostic letter alongside the school's SEN Support evidence and tell you whether the case for SEN Support, EHC needs assessment, or neither best fits where your child sits today.
References
The primary legislation, statutory guidance, research, and clinical tools this page draws on.