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Pre-existing Injury Aggravation in NSW CTP Claims: How SIRA Assesses Daily Activity Recovery

NSW CTP laws assess whether a motor accident aggravates a pre-existing injury by comparing medical evidence before and after the incident. SIRA evaluates how the aggravation affects daily activities like cooking, shopping, and mobility. Compensation focuses on new limitations caused by the accident, not the pre-existing condition itself. Evidence such as medical records and specialist reports is crucial. Claims must be filed within 3 years, and legal advice is recommended for complex cases.

Current as at 19 June 2026

If a motor accident worsens a pre-existing injury, NSW CTP laws determine whether you're entitled to compensation for daily activity limitations. SIRA assesses whether the accident aggravated your condition and how this affects your ability to perform everyday tasks. This article explains how SIRA evaluates claims, what evidence matters, and when to seek legal advice.

How SIRA Determines if an Injury Was Aggravated

SIRA evaluates whether a motor accident worsened a pre-existing condition by comparing medical evidence before and after the accident. Doctors must confirm that the accident caused a new or increased limitation that would not have occurred without the incident. For example, if a pre-existing back injury led to chronic pain, but the accident caused additional nerve damage requiring surgery, this would be considered aggravation.

Key factors include:

  • Medical records showing the pre-existing condition and its impact before the accident
  • Evidence of worsening symptoms after the accident
  • Specialist reports linking the accident to new or increased limitations

Daily Activities Considered in Compensation Claims

SIRA assesses how the aggravated injury affects your ability to perform routine tasks like:

  • Cooking or cleaning
  • Shopping or managing finances
  • Traveling or socializing
  • Working or caring for dependents

Compensation is based on how the injury limits your daily life, not just the severity of the aggravation. For instance, if the injury prevents you from walking for 30 minutes without pain, this would impact your ability to run errands or attend events.

Distinguishing New Injuries from Aggravated Pre-existing Conditions

NSW CTP laws treat new injuries and aggravated pre-existing conditions differently. A new injury from the accident is typically compensated under the Motor Accident Injuries Act 2017. However, if the accident worsens a pre-existing condition, compensation focuses on the additional limitations caused by the aggravation. For example, a person with pre-existing knee arthritis who develops a meniscus tear in the accident would receive compensation for the meniscus tear, not the arthritis itself.

Evidence Required to Prove Daily Activity Limitations

To support a claim, you must provide:

  • Detailed medical records from before and after the accident
  • Specialist reports confirming the aggravation
  • Evidence of how the injury affects daily tasks (e.g., doctor notes about mobility restrictions)
  • Witness statements or accident reports showing the incident's impact

Time Limits and Dispute Options

You have 3 years from the accident date to file a claim under the Motor Accident Injuries Act 2017. If your claim is disputed, SIRA may request further medical assessments or refer the matter to the NSW Civil and Administrative Tribunal (NCAT). It's crucial to act quickly, as delays can reduce compensation or lead to claim dismissal.

When to Seek Legal Advice

If your claim involves complex medical evidence, disputes over aggravation, or overlapping with workers' compensation, consult a solicitor. Legal professionals can help navigate SIRA's assessment process and ensure all evidence supports your case.

Every claim depends on its own facts. To request contact about your circumstances, complete the quick, no obligation enquiry form.

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