Threshold injury vs non-threshold injury (NSW CTP)

At a high level, threshold injury includes soft tissue injury and certain psychological/psychiatric injury that is not a recognised psychiatric illness, as defined in s 1.6 and modified by any applicable regulations/guidelines.

Insurers may classify injuries as threshold injuries to apply benefit duration rules. The correct classification is evidence-driven.

Non-threshold injury is any injury that is not a threshold injury. Depending on the facts and medical evidence, examples may include fractures, nerve injuries, ruptures, and recognised psychiatric illness.

The label is not about severity alone — it is about whether the injury meets the defined threshold injury criteria.

A threshold injury decision is important because it can influence the practical value and direction of the claim before any final damages assessment. It should be checked against the actual diagnoses, the insurer’s reasons, the Motor Accident Guidelines, and the medical material the insurer relied on.

• Weekly payments: if the insurer relies on threshold injury to limit or stop statutory benefits, review the decision against capacity evidence, PAWE assumptions, and the threshold reasoning.
• Treatment expenses: threshold classification can affect how long reasonable and necessary treatment is funded, especially where the insurer says the injury remains soft tissue only.
• Evidence strategy: useful material usually identifies the actual diagnosis, mechanism, clinical signs, imaging correlation, functional restrictions, and whether the condition falls outside the threshold definition.
• Dispute pathway: threshold injury disputes are commonly handled as medical disputes, while related payment or procedural issues may require internal review or a different PIC pathway.

If your weekly payments have been reduced or stopped, see weekly payments stopped. If treatment has been refused, see treatment refused in NSW CTP.

The strongest threshold injury challenge is usually diagnosis-led, not adjective-led. Saying an injury is “serious” is less useful than showing why the diagnosis, objective signs, or psychiatric criteria do not fit the threshold definition.

• Contemporaneous ambulance, emergency department, GP and physiotherapy records showing symptoms from the accident onward.
• Specialist reports that identify the diagnosis and explain why it is or is not only soft tissue injury.
• Imaging, nerve studies, operative notes or injection records where they are clinically relevant, with a doctor explaining their significance.
• Psychiatric or psychological reports that address whether there is a recognised psychiatric illness, not only distress symptoms.
• Functional evidence over time, including work capacity certificates and treatment response, where it helps explain the injury pathway.
• The insurer’s medical examination (IME) report and any factual assumptions that may need correction.

Evidence should be targeted to the legal definition, volume alone rarely helps. For each disputed insurer point, identify the exact record that answers it. Related guides: IME preparation, WPI assessment, and threshold injury guidelines.

Threshold injury disputes are commonly determined through the NSW Personal Injury Commission medical pathways. The issue is usually framed around the statutory definition, the Motor Accident Guidelines, and the medical evidence, not around whether the claimant is generally deserving or still in pain.

Before PIC escalation, check whether an internal review is required or strategically useful, whether the insurer has supplied the documents relied on, and whether any medico-legal report directly answers the disputed classification. A concise chronology can help connect the accident mechanism, early records, later investigations, treatment history and current diagnosis.

Read: Personal Injury Commission (PIC), PIC merit review vs medical assessment, and threshold injury dispute pathway.

The first two weeks usually decide whether your threshold classification challenge is evidence-led or merely argumentative. A short, precise specialist brief often makes the difference between a useful report and a generic one.

• Extract every insurer finding in writing (diagnosis, mechanism, psychiatric characterisation, and guideline references).
• Request and organise the full claim file set: clinical records relied on, surveillance notes (if any), and medico-legal reports.
• Map each disputed finding to targeted evidence gaps before filing internal review.
• When briefing specialists, give them the insurer’s exact disputed sentence so reports answer the real legal issue, not just the diagnosis label.
• Prepare escalation materials early in case the matter proceeds to PIC medical assessment.

Practical next steps: internal review strategy, threshold injury dispute pathway, and PIC merit vs medical stream selection.