Pre-existing Injury Aggravation, What Changed After 2017 Reforms
If you were injured before a motor accident and your condition worsened as a result, the 2017 reforms to NSW’s Compulsory Third Party (CTP) scheme changed how claims are assessed. This guide explains the key legal changes, how SIRA guidelines apply, and what evidence you need to support your claim in the Blue Mountains and Nepean.
Key Changes to Pre-existing Injury Claims After 2017
Before 2017, claims involving pre-existing injuries were evaluated under common law principles, which often allowed for broader interpretations of aggravation. The 2017 reforms introduced stricter criteria to determine whether an accident worsened a pre-existing condition. Under the Motor Accident Injuries Act 2017, claims now require clear medical evidence showing:
- The pre-existing injury was not fully resolved before the accident.
- The accident directly aggravated the injury, leading to new or worsened symptoms.
- The aggravation caused additional harm beyond the original condition.
The reforms also clarified that threshold injuries (minor injuries meeting specific medical criteria) are not automatically excluded from claims. However, if the only injuries are threshold injuries, benefits like weekly payments are generally limited to 52 weeks under the Act.
How SIRA Guidelines Apply to Pre-existing Injury Claims
SIRA (State Insurance Regulatory Authority) provides authoritative guidance on assessing pre-existing injury claims. Key points from SIRA’s guidelines include:
- Medical evidence is essential. You must provide documentation from a medical practitioner confirming the pre-existing injury and its aggravation. This includes medical records, imaging reports, and a detailed explanation of how the accident worsened your condition.
- No-fault claims are available under CTP, but the 2017 reforms mean claims must demonstrate a direct link between the accident and the aggravation. Fault is not a primary factor, but the injury must have been exacerbated by the incident.
- SIRA’s Motor Accident Guidelines define threshold injuries and outline how to assess whether an aggravation meets the threshold. For example, a pre-existing back injury that worsens after a car accident may qualify if it results in new neurological signs or functional limitations.
Practical Steps and Evidence for Your Claim
To support a pre-existing injury aggravation claim, gather the following:
- Medical records from before and after the accident, including consultations, diagnoses, and treatment plans.
- Accident details, such as police reports, witness statements, and photographs of the scene.
- Income records to show how the aggravation affected your ability to work.
- Correspondence with insurers or SIRA, including any claims forms or assessments.
If your claim is denied, you may need to request a review or seek independent medical advice to challenge the decision. SIRA allows for disputes to be resolved through its internal review process or by applying to the NSW Civil and Administrative Tribunal (NCAT).
Time Limits and When to Seek Advice
Under the CTP scheme, you generally have three years from the date of the accident to make a claim. However, time limits for specific benefits (like weekly payments) may be shorter. For example, the 52-week limit for benefits applies only if the injuries are threshold injuries.
If you’re unsure whether your claim meets the new criteria, seek legal advice early. Claims involving pre-existing injuries can be complex, and the 2017 reforms have narrowed the scope of what qualifies as aggravation. A solicitor can help you:
- Interpret SIRA guidelines.
- Challenge a denied claim.
- Navigate the review process.
Example: How a Claim Might Be Assessed
Imagine a cyclist in the Blue Mountains who had a pre-existing knee injury from a 2020 fall. In 2026, they’re involved in a motor vehicle accident where their knee worsens, leading to chronic pain and reduced mobility. Under the 2017 reforms, SIRA would assess:
- Whether the 2020 injury was fully resolved (likely not, as it’s a chronic condition).
- Whether the 2026 accident directly aggravated the knee injury.
- Whether the aggravation caused additional harm beyond the original injury.
If the medical evidence supports all three points, the claim could qualify for treatment benefits, weekly payments, or compensation for ongoing impairment.
Next Steps
The 2017 reforms have made it harder to claim for pre-existing injury aggravation, but it’s not impossible. If you’re in the Blue Mountains or Nepean and need help understanding how these changes apply to your case, contact a legal professional. Every claim depends on its own facts, and the rules can vary based on the date of the accident and the nature of the injuries.
Every claim depends on its own facts. To request contact about your circumstances, complete the quick, no obligation enquiry form.
