When school disagrees with your child's diagnosis

The diagnostic letter arrived. Autism. Your child is seven. You took it in to school and the SENDCO read it and said, carefully, that they were “a bit surprised, to be honest” and that they don't see any of it in class.

The class teacher said she was “a lovely girl,” very settled, friends with everyone. The deputy head implied, without quite saying, that you might be projecting. You went home and read the letter twice. You have not stopped questioning yourself since. Here is what is probably actually happening, and what to do.

From the school's side of the gate, they are usually telling the truth. The contradiction is real. The school is not lying. You are not exaggerating. Several things can be simultaneously true:

• Your child masks at school. Holds the social face all day, follows the rules, doesn't disrupt. Teachers see compliant, quiet, working-through-her-book.
• The cost is paid at home. The afternoon meltdowns, the sleep collapse, the Sunday-night dread. See our piece on restraint collapse.
• School observation criteria miss the picture. Standard SENCO assessments are tuned for externalising behaviour. Quiet autistic girls and masked ADHD-inattentive children pass through without being flagged.
• The setting is buffering. Routine, peers the child has known for years, a familiar teacher. Different setting (a school trip, a supply teacher, an assembly) and the picture shifts.

The hallway, 3.40pmHome, the same school day

The reframe most experienced SEND specialists use: the school's observation is one data point. The diagnostic clinician's formal assessment is another. Your observation at home, sustained over years, is a third. All three are evidence. The diagnosis is built across all three.

The school's opinion of the diagnosis and the school's duty to provide SEN support are governed by different rules. Confusing the two is what lets a sceptical school sound as though it has a veto.

IPSEA puts this directly: a child does not need a diagnosis to qualify for SEN support, and a diagnosis on its own does not entitle a child to specific provision. The school's job is to identify and meet need. They cannot, lawfully, use “we don't agree with the diagnosis” as a reason to withhold support that the child's observed needs warrant. (IPSEA, myth of diagnosis. See References.)

The Equality Act provides a separate route that operates regardless of the school's view of the diagnosis. Under the Act, a person is disabled if they have a physical or mental impairment that has a substantial and long-term adverse effect on their ability to carry out normal day-to-day activities. Autism, ADHD, and many co-occurring conditions readily meet this test.

Three things follow from that:

• A formal diagnosis is not required. A child without a diagnosis but with the underlying impairment is still disabled under the Act.
• The school's opinion of severity is not the legal test. “Substantial” means more than “minor or trivial.” That is a low bar.
• The duty to make reasonable adjustments is triggered by the impairment, not by the diagnosis. A school cannot refuse adjustments because they disagree with a clinician's view.

Where you suspect the school is failing reasonable adjustments because they don't buy the diagnosis, the frame is disability discrimination, not SEN dispute.

School pushback on a diagnosis comes in three flavours. The right response is different for each.

Several routes, depending on the disagreement.

1. Bring documentation, not arguments. The diagnostic report, the home diary, the GP letter. School staff respond to written evidence more reliably than to verbal accounts.
2. Request a SEN Support plan. The graduated approach (assess, plan, do, review) under SEND Code 6.36–6.56 is the formal route. Ask for it in writing.
3. Frame in Equality Act terms. “Under the Equality Act 2010, [child] has a disability. I am asking for these specific reasonable adjustments: [list]. Please confirm in writing.” The frame changes the register of the conversation.
4. Bring an ally. SENDIASS (your local SEND advice and information service) is statutory, free, and often attends meetings. The dynamic in a meeting with two adults on your side is meaningfully different.
5. If the school is closed to it, request a governors' complaint hearing. The next step up before LA-level routes.

Where the school challenges the diagnosis, the answer is clinical, not pedagogical. What rarely helps is arguing with the school about the diagnosis itself. They are not the deciding body.

What helps is clinical evidence in writing:

• A short clinician letter from the diagnosing paediatrician or psychologist, confirming the diagnosis and key support needs. Most clinicians will write a one-page letter on request.
• An independent Educational Psychologist (EP) report. Costs £600–£1,200. Often settles school-side disagreement decisively, because the EP observes in class.
• A short SaLT, OT or paediatric report on the specific need (sensory, communication, regulation).
• The clinical report's recommendations in written form. Many diagnostic reports include school-side recommendations that mainstream schools can implement.

The disagreement matters in specific places. Knowing them lets you focus.

• SEN Support provision in school. A sceptical school provides the minimum. A supportive school does more.
• EHCNA evidence base. The LA is informed by school evidence. A school that says “needs not evident in class” weakens the case.
• Reasonable adjustments at school. Equality Act adjustments depend on someone in the school taking the duty seriously.
• The relationship over years. If the disagreement is unresolved, the relationship can sour, and many things become harder.

The hard truth from experienced SEND parents: the Equality Act and the Code of Practice give routes to push, but the lived experience of a child in a setting that doesn't believe in them is often the limiting factor.

When local conversations are not working, several formal routes exist.

1. The school complaints procedure. Three stages: class teacher, then headteacher, then governors. Mandatory in maintained schools.
2. Local Authority complaint. For systemic failure to meet SEN needs.
3. EHC needs assessment request. Triggers a formal LA-led assessment that bypasses the school's view. Strong route where school-level support is inadequate.
4. SEND Tribunal disability discrimination claim. Under section 51 of the Children and Families Act 2014, the SEND First-tier Tribunal hears disability discrimination claims against schools. Time limit: 6 months from the act complained of.
5. Ombudsman. The Local Government & Social Care Ombudsman for LA-level maladministration; the Education Ombudsman for academy failures.

IPSEA and SOSSEN advise on all of these. For disability discrimination claims, a SEN solicitor with Equality Act experience is the right route.

Three things.

If you want someone in your corner before the meeting, a Remarkable Minds SEND specialist will help you frame the picture, draft the email and rehearse the conversation with the SENDCO. For formal legal advice, IPSEA and SEN solicitors remain the lead routes. Find a specialist (£60 for a 45-minute video call).

The sources behind every claim in this article.

• SEND Code of Practice. SEND Code of Practice 2015, chapters 5 and 6. The graduated approach to identifying and meeting need is in 6.36–6.56.
• Diagnosis and SEN support. IPSEA, The myth of needing a diagnosis before getting support. A child does not need a diagnosis to qualify for SEN support.
• Equality Act 2010. Section 6 (definition of disability); section 20 (reasonable adjustments); Didlaw, Autism and ADHD as disabilities under the Equality Act.
• Disability discrimination in education. Coram Child Law Advice, Disability discrimination in education; NAS, Disability discrimination.
• Free SEND advice. IPSEA 0300 030 0080; SOSSEN; your local SENDIASS.

This article is general information about the SEND statutory framework, not legal advice. It has been reviewed by a UK SEND specialist but does not replace input from IPSEA, SOSSEN, your local SENDIASS, or a SEN solicitor for specific disagreements with a school.