When school disagrees with your child's diagnosis

What “we don't see it at school” actually means

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 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.

Diagnosis vs SEN support: two different things

The school's opinion of the diagnosis and the school's duty to provide SEN support are governed by different rules.

Diagnosis is a clinical question. It is made by a paediatrician, psychiatrist, EP, clinical psychologist or specialist team, against standardised criteria (DSM-5, ICD-11, NICE guideline criteria). The school is not a diagnostic body. Their view of whether the diagnosis is “right” has no statutory weight.

SEN support is governed by the SEND Code of Practice 2015. The Code (paragraphs 5.4-5.6 and chapter 6) places duties on schools to identify and meet special educational needs through the graduated approach: assess, plan, do, review. The duty is triggered by identified need, not by diagnosis. (SEND Code 2015. See References.)

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 2010 applies regardless

The Equality Act provides a separate route that operates regardless of the school's view of the diagnosis.

Under the Equality Act 2010, 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.

Critically:

• 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.

The three kinds of disagreement

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

What to do at the school level

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.

What to do at the clinical level

Where the school challenges the diagnosis, the answer is clinical, not pedagogical.

What helps:

• 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.

What rarely helps: arguing with the school about the diagnosis itself. They are not the deciding body.

Where the disagreement actually bites

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

• SEN Support provision in school. A skeptical 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.

Escalation routes

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

1. The school complaints procedure. Three stages: class teacher → headteacher → 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 EA experience is the right route.

What to do this week

Three things.

1. Document the home picture. Two weeks of specific observations. Dates, behaviours, impact. Not arguments, evidence.
2. Email the SENDCO and headteacher with a formal request to begin or update the SEN Support plan under SEND Code 2015 6.36-6.56, citing the diagnosis as informing the needs.
3. Call IPSEA or your SENDIASS. Specifically ask about reasonable adjustments and SEND-Code routes where school-side resistance is the problem.