Stroke: why "permanent deficit" is the phrase that matters
A stroke diagnosis alone doesn’t always trigger a payment. Most policies require lasting neurological damage — and the wording of "lasting" varies.
Key facts at a glance
- Typical definition style
- Death of brain tissue with permanent neurological deficit and persisting clinical symptoms
- Typically not covered
- Transient ischaemic attacks (TIAs) and migraine-related symptoms
- Timing wording
- Some policies require symptoms to persist for a specified period before assessment
- Why wording varies
- "Permanent deficit" is defined and evidenced differently across policies
Reviewed by the LifeInsuranceForMe advice team · Last updated August 2026 · Definitions vary between policies — your own wording is decisive
What insurers mean by stroke
A typical definition is the death of brain tissue due to inadequate blood supply or haemorrhage within the skull, resulting in permanent neurological deficit with persisting clinical symptoms. Both halves matter: the clinical event, and the lasting damage.
What typically qualifies
A confirmed stroke — ischaemic or haemorrhagic — with neurological symptoms that persist and are expected to be permanent will generally meet the definition, subject to the policy's evidence requirements.
What is typically not covered
Transient ischaemic attacks ("mini-strokes"), where symptoms fully resolve, are almost universally excluded. So are migraine-related symptoms, and traumatic brain injuries under the stroke definition — though injuries may be covered elsewhere in the policy.
Why policies differ
The variation hides in how "permanent neurological deficit" is evidenced. Some wordings ask for symptoms persisting beyond a set number of weeks before assessment. Others rely on a specialist's prognosis. A policy that assesses too early or defines deficit too narrowly is worth less than its premium suggests.
- How does this policy define and evidence "permanent neurological deficit"?
- Is there a minimum period symptoms must persist before a claim is assessed?
- Are TIAs or less severe neurological events covered by any additional payment?
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