Understanding Pre-existing Injury Aggravation in NSW CTP Claims
If you were involved in a motor accident in Greater Sydney and your injury is worsened by a pre-existing medical condition, you may be entitled to compensation under the NSW Compulsory Third Party (CTP) insurance scheme. This situation, where a new accident aggravates a prior injury, is governed by the Motor Accident Injuries Act 2017 (MAIA) and administered by the State Insurance Regulatory Authority (SIRA). You are not required to have been injured in a previous accident to claim, but you must demonstrate that the new accident caused a significant worsening of your pre-existing condition. This distinction is critical: compensation is not for the original condition, but for the additional harm caused by the accident.
What Must Be Proven to Claim for Aggravated Pre-existing Injury
To claim under CTP for a pre-existing injury aggravated by a motor accident, you must establish that the accident caused a material increase in your injury or disability. This means your condition must be worse than it was immediately before the accident. SIRA assesses these claims by comparing your medical status before and after the accident, using medical evidence and clinical findings. The burden of proof lies with you to show that the accident was a significant contributing factor to the deterioration.
You must also meet the threshold for claiming damages under MAIA. This means you must have a permanent impairment of at least 10% of the whole person, or you must have suffered a threshold injury (such as a soft tissue injury with specific neurological signs) that results in a loss of function. If your only injuries are threshold injuries, you may not be eligible for damages, but you may still receive treatment and care benefits and weekly income payments under the statutory scheme.
Critical Early Steps to Preserve Your Claim
The most important actions after a motor accident involving a pre-existing condition are immediate and practical. First, seek medical attention as soon as possible. Delaying treatment may undermine your claim, as SIRA will assess whether the injury was caused by the accident and whether it was properly managed. Your medical practitioner must document your condition before and after the accident, including any changes in symptoms, function, or diagnostic findings.
Second, report the accident to your insurer within a reasonable time. While there is no fixed deadline in the MAIA for reporting, delays may affect the insurer’s ability to investigate and may result in a claim being denied. You should notify the CTP insurer of the vehicle involved, including the green slip details, and provide a written statement outlining how the accident worsened your pre-existing condition.
Third, preserve all evidence. This includes photographs of the accident scene, vehicle damage, and any visible injuries. Keep records of all medical appointments, treatment notes, and correspondence with your doctor, insurer, or legal advisor. If you were a pedestrian, cyclist, or passenger, witness statements or CCTV footage may help establish the circumstances of the accident and its impact on your condition.
Evidence That Matters in Aggravation Claims
SIRA relies on objective medical evidence to assess whether a pre-existing injury was aggravated. Key evidence includes:
- A medical report from a treating practitioner that details your condition prior to the accident and any changes since.
- Imaging results (X-rays, MRI, CT scans) showing new or worsened structural damage.
- Neurological assessments if the pre-existing injury involves the spine or nervous system.
- A formal assessment of whole person impairment (WPI) by an accredited medical assessor, which must be conducted after the accident and include a comparison to your pre-accident status.
If you had a prior diagnosis or treatment for the condition, such as chronic back pain, arthritis, or a previous spinal injury, you must provide records from that time. These help establish baseline function and demonstrate the extent of the deterioration.
Time Limits and Procedural Requirements
There is no fixed time limit to make a CTP claim in NSW, but delays may affect the strength of your case. It is best to begin the process as soon as possible. If you are claiming damages, you must file your claim within three years of the accident date. For statutory benefits such as treatment and care, weekly payments, or rehabilitation, there is no strict time limit, but prompt action is essential to avoid gaps in support.
If your claim is denied, you may apply for a review through SIRA or seek a formal determination from the NSW Civil and Administrative Tribunal (NCAT). You must act within 28 days of receiving a decision to request a review. If you believe your claim was not fairly assessed, you may also seek independent legal advice.
When to Seek Advice
A pre-existing injury aggravation claim can be complex, particularly where the original condition was managed or treated before the accident. SIRA’s assessment process considers whether the injury was caused by the accident, and whether any pre-existing factors contributed to the outcome. You may benefit from legal advice to ensure your medical evidence is properly presented and your claim is not overlooked due to procedural or evidentiary gaps.
A hypothetical example: A 52-year-old driver in Sydney had a history of degenerative disc disease treated with physiotherapy. After a rear-end collision, he experienced a sudden increase in back pain, sciatica, and reduced mobility. His MRI showed new disc herniation not present before the accident. His treating doctor confirmed the accident caused a significant worsening of his condition. He was assessed with a 15% WPI. He was able to claim treatment and care benefits, weekly income payments, and damages for pain and suffering under the CTP scheme.
Next Steps
Every claim depends on its own facts. To request contact about your circumstances, complete the quick, no obligation enquiry form.