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Disputing Treatment Funding Decisions in NSW CTP Claims: A Claimant's Guide

Claimants in NSW can dispute treatment funding decisions under the CTP scheme by following SIRA’s guidelines. Evidence such as medical records and insurer correspondence is essential. Time limits apply, and legal advice may be needed if disputes escalate.

Current as at 19 June 2026

How to Challenge Treatment Funding Decisions in NSW CTP Claims

If your insurer denies or limits coverage for treatment costs under the NSW Compulsory Third Party (CTP) scheme, you may need to dispute their decision. The NSW Motor Accident Injuries Act 2017 and SIRA guidelines outline how claimants can challenge funding decisions. This article explains the process, required evidence, and SIRA’s criteria for approving treatment costs.

Understanding SIRA’s Role in Funding Treatment

SIRA (State Insurance Regulatory Authority) oversees the NSW CTP scheme, ensuring insurers comply with the Motor Accident Injuries Act 2017. Under this scheme, insurers must fund necessary medical treatment for eligible injuries. If an insurer refuses to cover treatment, claimants can dispute the decision by referencing SIRA’s guidelines.

The Act specifies that treatment must be 'reasonably necessary' and 'directly related' to the motor accident. SIRA’s What You Can Claim page confirms insurers must cover treatment costs that are 'reasonably necessary' for recovery, including physiotherapy, specialist consultations, and diagnostic tests. If an insurer disputes this, claimants must provide evidence supporting the necessity of the treatment.

Steps to Lodge a SIRA Complaint About Treatment Funding

To dispute an insurer’s decision, claimants should follow these steps:

  • Gather medical evidence: Obtain copies of all medical records, treatment plans, and correspondence with healthcare providers. These documents must show a direct link between the treatment and the motor accident.
  • Review insurer correspondence: Keep records of all communication with the insurer, including denied claims, requests for additional information, and any written decisions.
  • Submit a formal complaint: Use SIRA’s online complaint form or contact them directly. Your complaint should clearly state why you believe the insurer’s decision is incorrect, referencing the relevant sections of the Motor Accident Injuries Act 2017.
  • Request a review: SIRA may refer your case to an independent review if the insurer’s decision is disputed. This process is outlined in SIRA’s Making a Motor Accident Claim guidelines.

Evidence Needed to Support a SIRA Complaint

SIRA requires claimants to provide evidence that the treatment is 'reasonably necessary' for recovery. Key evidence includes:

  • Medical reports: From doctors or specialists confirming the treatment is directly related to the injury.
  • Accident reports: Police or witness statements detailing the incident.
  • Insurer’s denial letter: Showing the insurer’s refusal to fund the treatment.
  • Financial records: Proof of out-of-pocket expenses if the insurer disputes the cost.

If an insurer refuses to cover a treatment, claimants must demonstrate that the treatment meets the 'reasonably necessary' threshold. SIRA’s guidelines state that insurers must fund treatment that is 'directly related' to the injury, even if it’s not immediately obvious.

Time Limits and Dispute Options

The NSW CTP scheme has strict time limits for lodging complaints. Claimants must notify SIRA of a dispute within 28 days of receiving the insurer’s decision, as per SIRA’s Making a Motor Accident Claim page. If the insurer’s decision is not reviewed within this timeframe, claimants may need to escalate the matter through SIRA’s internal review process.

Disputes over treatment funding can also be resolved through SIRA’s mediation service. This option is available if the claimant and insurer cannot agree on the necessity of the treatment. SIRA’s guidelines outline the steps for mediation, including submitting a written request and attending a scheduled review.

When to Seek Legal Advice

While SIRA provides a formal process for disputing treatment funding decisions, claimants may need legal assistance if the insurer’s refusal is based on incorrect interpretations of the law. A solicitor can help draft formal complaints, challenge the insurer’s reasoning, or represent the claimant in a dispute resolution process.

If your insurer denies coverage for treatment costs, it’s important to act quickly. SIRA’s guidelines and the Motor Accident Injuries Act 2017 provide a clear pathway for challenging decisions, but the process requires careful documentation and adherence to time limits.

Example Scenario: Disputing a Denied Physiotherapy Claim

Consider a claimant who sustained a soft-tissue injury in a car accident. Their insurer refuses to fund physiotherapy, arguing that the treatment is 'not directly related' to the injury. The claimant can dispute this by providing a medical report from a physiotherapist confirming that the treatment is 'reasonably necessary' for recovery. SIRA’s guidelines state that such treatment must be 'directly related' to the injury, so the claimant’s evidence would need to demonstrate this link.

Next Steps for Claimants

If you’re facing a dispute over treatment funding, start by reviewing the insurer’s decision and gathering all relevant evidence. Use SIRA’s online complaint form to formally challenge the decision, and consider seeking legal advice if the dispute escalates. Acting promptly and following the correct procedures will increase the chances of a successful outcome.

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

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