The legal test
Section 20 of the Children and Families Act 2014 defines a child or young person as having special educational needs (SEN) if they have a learning difficulty or disability that calls for special educational provision to be made for them. The test is about needs and the support those needs require, not about labels.
Section 36(8) of the same Act sets the threshold for an EHC needs assessment: the council must assess if the child may have SEN and may need provision beyond what mainstream schools can ordinarily make. Again, the test names needs, not diagnoses.
The SEND Code of Practice 2015 (paragraph 9.14) confirms the same: assessment decisions are based on the evidence of need and the inadequacy of current provision, not on whether a diagnostic letter is attached.
What evidence works without a diagnosis
In place of a diagnostic label, gather evidence of how your child is presenting and what the school has already tried:
- School data. Reading and maths assessments below age-expected level; behaviour incident logs; attendance records; the school's own SEN Support records showing what was tried and what didn't work.
- The school's own SENDCO report. The teacher in charge of special needs can write a letter setting out what they've observed and what they've put in place under SEN Support. If the school has done this conscientiously and the gap is still widening, that's strong evidence.
- GP or paediatrician letters. Even a letter saying “this child is on the autism assessment waiting list and is awaiting NHS assessment” is evidence of suspected need.
- Your own parental contribution. Specific, dated examples of what's happening at home and at school. Generalities don't help; a specific Tuesday morning meltdown with what triggered it does.
- Any private clinician reports (Educational Psychologist, Speech and Language Therapist, Occupational Therapist) you've commissioned.
A diagnosis adds weight but doesn't replace any of the above. The council is required to consider all evidence of need.
When a diagnosis helps anyway
There are situations where having a diagnosis on the file genuinely helps:
- It can short-cut the council's internal scepticism, especially in areas with restrictive assessment criteria.
- For specific provision (e.g. an autism-specialist school placement), the diagnosis may be part of the school's own admission criteria.
- It can be useful for DLA, for Disability Discrimination Act claims, and for the wider piece of evidence-gathering.
But it's never the gate. If you're on a long NHS waiting list and the school is failing to meet your child's needs now, the EHCP route is open to you now.
The school's common misdirection
Many schools tell parents some version of “we need to wait until your child has a diagnosis before we can request an EHCP.” This is wrong in two ways. First, the school doesn't “request” the EHCP at all; you can request the EHC needs assessment directly from the council under section 36(1). Second, no diagnosis is legally required. If your child's school is using this line, it's likely either a misunderstanding or a delaying tactic.
If the school says it, send your direct request to the council the same week. Don't wait.
Where the law comes from
Related
This page is general information, not clinical or legal advice.