ARTICLE
31 March 2026

Navigating CTE claims: A guide for insurers

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Barry Nilsson

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Barry Nilsson is an award-winning national law firm of more than 550 staff, with offices in all six states. Our Insurance & Health and Family Law, Wills & Estates practices combine extensive industry knowledge with local expertise to deliver trusted, practical advice. We partner with our clients, evolving our services to meet changing needs, while fostering a strong internal culture that supports our people and community. Our Insurance & Health team includes 250+ specialist insurance lawyers advising across all major lines of insurance and a broad range of industries. From policy drafting and claims management to legislative and regulatory advice, we work alongside insurance clients and stakeholders to tailor strategies designed to achieve the best outcomes. Our Family Law, Wills & Estates team provides a full range of family law and estate planning services for local, international, and expatriate clients. We combine expertise with empathy to deliver advice tailored to individual circumstances.
CTE is an emerging neurodegenerative condition linked to repeated head injuries that is creating growing and uncertain liability risks for insurers as medical understanding, litigation & regulatory scrutiny continue to evolve.
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Chronic traumatic encephalopathy (CTE) is a neurodegenerative brain condition increasingly linked to repeated head injuries and concussions, particularly in elite sport.

As awareness of CTE grows, insurers are beginning to face a complex and evolving risk exposure, shaped by emerging medical research, developing case law and heightened regulatory scrutiny. Adding to this complexity, a definitive diagnosis of CTE is currently only possible following post‑mortem examination.

While known claims have to date been largely confined to elite sport, the CTE claims landscape is expected to develop rapidly as medical understanding advances and litigation expands in Australia and internationally. Insurers are therefore closely monitoring how liability, causation and quantum issues may unfold across a broader range of insured risks.

Prepared by Barry Nilsson's national Insurance & Health team, this comprehensive guide provides an in‑depth analysis of CTE from an insurance and claims perspective, including:

  • a medico‑legal overview of CTE and current medical understanding
  • emerging CTE claims in Australia and key overseas developments
  • the evolving legislative and regulatory framework
  • potential exposure pathways and claimant cohorts, and
  • practical implications for insurers across underwriting, claims and risk mitigation.

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The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

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