Threshold injury dispute (NSW CTP)
Threshold injury disputes are common. Insurers may classify an injury as a threshold injury, and the claimant may dispute that classification. These disputes are evidence-driven and often determined through the NSW Personal Injury Commission (PIC) medical pathways.
If you received an adverse threshold decision, map each insurer reason to targeted medical evidence, check the review rights stated in the decision and identify the correct internal-review or PIC medical pathway.
General information only. The correct pathway depends on the decision type.
What the dispute is really about
A threshold injury dispute is about whether the injury meets the legal definition in the Motor Accident Injuries Act 2017 and the SIRA Motor Accident Guidelines. It is not simply about how painful the injury feels.
Research from official NSW agencies should be read together: SIRA explains the Motor Accident Guidelines and claimant information, while the Personal Injury Commission determines medical disputes when an insurer decision is maintained. For radiculopathy, the Guidelines require clinical signs rather than imaging alone.
Evidence that commonly matters
- early GP/hospital notes documenting symptoms and objective findings
- specialist reports addressing diagnosis and criteria
- imaging where relevant, but only with clinical correlation because an MRI finding alone may not prove non-threshold injury
- radiculopathy evidence addressing at least 2 of the 5 recognised clinical signs, such as reflex loss, sensory loss, muscle weakness, muscle wasting or a positive nerve root tension sign
- function and symptom history over time
Practical measurement matters. For example, Table 6.8 of the Motor Accident Guidelines deals with atrophy measurement, so a useful report should explain where and how muscle wasting was measured rather than using a vague phrase like reduced bulk.
Internal review and PIC medical pathway
Threshold injury disputes are medical disputes, but the procedural sequence depends on the decision. Check whether internal review is available or required and whether the issue should proceed to a PIC medical assessment. Keep the classification evidence separate from PAWE, weekly-payment and treatment-approval arguments.
Use the actual review date in the insurer letter. If reasons or relied-on documents are missing, request them promptly and obtain advice if the date is unclear, close or already passed.
Read: internal review, merit vs medical assessment, and PIC overview.
What to do after an adverse threshold decision
Build the response around the insurer's reasons and the applicable review period, not an invented timetable.
- Identify the decision: break down the insurer reasons line-by-line and identify exactly which diagnosis, IME conclusions, and records were relied on.
- Address the evidence gap: request targeted treating and specialist responses that answer those reasons directly, with objective findings and clear clinical logic.
- Organise the record: build a one-page chronology (treatment, symptoms, function, work impacts, medication changes) and index the supporting documents.
- Use the correct pathway: lodge the applicable internal review or PIC material within the relevant period, with any late or pending evidence explained.
What usually makes a stronger threshold injury dispute bundle
This section explains what usually makes a stronger threshold injury dispute bundle. Strong threshold disputes usually work best when the evidence answers the insurer's actual classification reasons, not just when the claimant repeats that the injury feels serious. The core question is whether the medical material supports a non-threshold pathway under the right legal test.
- Decision-specific medical rebuttal: specialist or treating evidence should deal directly with the diagnosis, mechanism, objective findings, and why the insurer's threshold classification is said to be wrong.
- Contemporaneous chronology: early GP, hospital, physio, and specialist records matter because they can show symptom onset, persistence, and whether the clinical history stayed consistent over time.
- Clear separation from other dispute types: threshold classification should be separated from weekly payments, PAWE, and broader work-capacity arguments so the matter can move through the correct PIC stream.
- Function evidence linked back to diagnosis: daily limitations help most when they are tied to the actual injury findings rather than presented as generic hardship evidence.
- IME response planning: if the insurer relied on an IME, it often helps to address the exact clinical or methodological problems in that report rather than criticising it in general terms. See IME disputes and preparation.
Common problems that weaken threshold injury disputes
- generic treating letters that do not engage with the statutory threshold definition
- arguments focused only on pain severity instead of diagnosis, pathology, and legal classification
- mixed submissions that bundle threshold, capacity, and earnings issues together without identifying the correct pathway
- late evidence that does not explain gaps, changes in diagnosis, or inconsistent clinical history
- failing to preserve the internal review and insurer correspondence chronology before filing at PIC
Frequently asked questions
- What is a threshold injury dispute?
- It is a dispute about whether your injury meets the legal definition of threshold injury. The classification can affect statutory benefits duration and can be determined through the PIC medical pathways.
- Is threshold injury the same as WPI?
- No. Threshold injury classification (s 1.6) and WPI/permanent impairment are different concepts used for different entitlement questions.
- What evidence matters most?
- Contemporaneous medical records, specialist evidence, objective findings, and targeted reports addressing the legal definition are commonly important.
- Do I need internal review first?
- Check the insurer decision and current procedural material. Internal review may be available or required before a PIC application depending on the decision and pathway; do not assume every medical dispute follows the same sequence.
- Can a threshold injury dispute affect weekly payments?
- It can, because classification can affect benefit duration. Weekly payments can also be affected by earning capacity decisions and other rules.
- What if the review date is close and specialist evidence is still pending?
- Use the date and review rights in the insurer decision and obtain advice promptly. The correct step may be an internal review or a PIC medical application. Lodge the required material within the applicable period where possible and explain any evidence that is still being obtained.
Assessment source
Which rules govern a threshold injury dispute?
Assessment source: Motor Accident Injuries Act 2017 (NSW), section 1.6; Motor Accident Injuries Regulation 2017, clause 4; Motor Accident Guidelines Part 5, clauses 5.1-5.12; Part 6, clauses 6.138-6.142 and Table 6.8 where radiculopathy is in issue.
Threshold injury: The dispute is whether the injury falls within the statutory threshold definition. It is separate from WPI and from the greater-than-10% test for non-economic loss.
What the assessor checks
- A complete or partial rupture of a tendon, ligament, meniscus or cartilage is outside the soft-tissue definition.
- Radiculopathy requires two or more qualifying clinical signs; radiating pain and imaging alone are insufficient.
- Neurological symptoms that do not satisfy the radiculopathy criteria remain threshold under clause 5.9.
- Acute stress disorder and adjustment disorder are threshold injuries under Regulation clause 4.
What does not establish the result by itself
- Pain severity or functional difficulty without a diagnosis outside the threshold definition.
- A disc bulge or non-verifiable radiating symptoms without the required clinical signs.
- A WPI estimate used as a substitute for the threshold classification test.