When you are injured and relying on a compensation claim, access to medical treatment is central to your recovery. Yet one of the most common points of conflict in both workers compensation and motor accident claims in NSW is the insurer’s refusal to approve recommended treatment.
Many injured people first encounter this issue through a formal notice stating that surgery, physiotherapy, psychological counselling, or ongoing medication has been declined. The reason given is often that the treatment is “not reasonably necessary” or “not related to the compensable injury.”
Understanding why insurers say no, and how these decisions are assessed under NSW law, is essential to protecting both your health and your entitlements.
The Legal Framework Behind Treatment Decisions
Treatment disputes are not arbitrary. Insurers are bound by laws that define when medical expenses must be paid.
In NSW workers compensation claims, medical and related treatment is governed by the Workers Compensation Act 1987. In motor accident claims, treatment entitlement is assessed under the Motor Accident Injuries Act 2017.
Under both schemes, treatment must generally satisfy three core requirements:
- It must relate to the accepted injury.
- It must be reasonably necessary.
- It must be supported by appropriate medical evidence.
If an insurer believes any of these elements are not met, it may lawfully decline approval.
What Does “Reasonably Necessary” Actually Mean?
“Reasonably necessary” is the most common ground for refusal. This phrase does not mean treatment must guarantee recovery. However, insurers assess whether the proposed treatment is:
- Clinically appropriate
- Supported by evidence-based practice
- Proportionate in frequency and duration
- Likely to provide measurable benefit
For example, ongoing physiotherapy without documented improvement in function may be questioned. Surgery may be declined if independent specialists believe conservative management remains appropriate. Extended psychological treatment may be scrutinised if progress reports are unclear.
Insurers are entitled to rely on independent medical opinions when forming these decisions. However, disputes often arise when treating practitioners disagree with insurer-appointed doctors.
Causation: Is the Treatment Related to the Injury?
Another common reason insurers say no is causation. They may argue that the proposed treatment relates to:
- A pre-existing degenerative condition
- Natural progression of disease
- A new, unrelated injury
- Symptoms not supported by objective findings
In these cases, the dispute is not about whether treatment is helpful, but is about whether the insurer is legally responsible for funding it.
Clear, well-reasoned medical evidence linking the treatment to the compensable injury is critical. Vague or inconsistent reports frequently lead to refusal.
The Role of Independent Medical Examinations
Insurers frequently arrange Independent Medical Examinations (IMEs). These assessments are conducted by specialists engaged by the insurer to provide opinions on diagnosis, causation, and treatment necessity.
While IMEs are a legitimate part of the statutory framework, disputes often arise where:
- The IME opinion conflicts with treating specialists
- Functional limitations are understated
- Long-term symptoms are characterised as resolved
In NSW workers compensation disputes, treatment disagreements may ultimately be referred to the Personal Injury Commission for determination. Medical Assessors may provide binding opinions on issues of causation and reasonable necessity.
Why Insurers Scrutinise Treatment Closely
Compensation schemes are designed to support recovery, but they are also tightly regulated statutory systems. Insurers must ensure that payments align with legislative criteria.
Treatment disputes commonly arise in situations involving:
- High-cost procedures such as spinal or orthopaedic surgery
- Long-term allied health treatment without clear improvement
- Psychological injury claims
- Chronic pain syndromes
- Disputed permanent impairment
The longer a claim continues, the more closely treatment recommendations may be examined. This scrutiny does not mean treatment is unjustified, but it does mean the supporting evidence must directly address statutory tests.
How Treatment Disputes Affect Your Broader Claim
A refusal of treatment can have wider implications.
It may affect:
- Ongoing weekly income payments
- Work capacity assessments
- Permanent impairment evaluations
- Long-term recovery outcomes
Delayed or denied treatment can prolong incapacity, which may later influence arguments about work capacity or impairment thresholds. For this reason, treatment disputes should not be viewed in isolation. They often form part of a broader compensation strategy.
A Refusal Is Not the Final Word
Insurers are entitled to scrutinise treatment proposals, but refusals are not automatically correct.
Compensation legislation provides structured pathways to challenge decisions where treatment is clinically justified and legally connected to the injury.
If your medical treatment has been declined, it is important to understand the reasoning behind the decision and whether it can be challenged effectively.
How Law Advice Assists in Treatment Disputes
At Law Advice, we understand that medical treatment is not simply an expense line in a claim. It is fundamental to your recovery and financial stability.
Our personal injury lawyers regularly assist clients in both workers compensation claims and motor accident claims where treatment has been refused or restricted.
We assist by:
- Reviewing insurer refusal notices for compliance with statutory requirements
- Identifying whether the correct legal test has been applied
- Working with treating doctors to ensure reports address causation and reasonable necessity clearly
- Preparing structured submissions for internal review or Commission proceedings
- Representing clients in disputes before the Personal Injury Commission where required
Because these disputes are evidence-driven, early legal advice can prevent procedural delays and ensure that medical documentation is aligned with the legislative framework.