NSW Supreme Court case note
GIO v Mohammed: the scope of a PIC medical dispute
The Supreme Court dismissed GIO’s judicial review challenge to a PIC Review Panel decision that treated a later-documented partial supraspinatus tear as a non-threshold injury. The judgment explains why the scope of a medical dispute is determined from the whole procedural history, not only a short description on the original application, and why procedural fairness still requires notice of a crucial new issue.
Reviewed by Herman Chan of Stephen Young Lawyers.
Decision in brief
What did GIO v Mohammed decide?
The Court dismissed GIO’s summons, with costs. It held that the PIC Review Panel was entitled to consider whether a partial-thickness tear of the claimant’s left supraspinatus tendon was a non-threshold injury because the shoulder had been referred for assessment, GIO had itself addressed the question of a tear in its submissions, and later evidence and directions kept the issue within the medical dispute. The Court also rejected GIO’s procedural-fairness complaint because the Panel gave GIO notice of the tear and an opportunity to make submissions before deciding the issue. The case does not mean every later diagnosis automatically expands a PIC dispute.

Case at a glance
- Full case name
- AAI Ltd t/as GIO v Mohammed
- Neutral citation
- [2026] NSWSC 991
- Court or division
- Supreme Court of New South Wales, Common Law Division
- Decision date
- 25 August 2026
- Decision-maker
- Griffiths AJ
- Authoritative judgment
- AAI Ltd t/as GIO v Mohammed [2026] NSWSC 991
The shoulder evidence changed over time
Mr Mohammed was injured in a motor vehicle accident on 2 May 2022. GIO initially described his neck, upper-back, shoulder and other injuries as threshold injuries and stopped statutory benefits after the relevant period. He sought an internal review and then applied to the PIC for medical assessment of several injuries, including left supraspinatus tendinosis and subacromial bursitis.
An early shoulder ultrasound, performed shortly after the accident, was reported as showing mild supraspinatus tendinosis without a tear and mild bursitis. The first Medical Assessor treated the shoulder injury as soft tissue and threshold. A later further assessment did the same.
During the later Review Panel process, GP records included a further ultrasound report identifying a partial-thickness supraspinatus tear. The Panel directed GIO to address whether that tear was caused by the accident. The Panel ultimately revoked the earlier certificate and certified that the left shoulder injury was not a threshold injury.
The scope of the medical dispute is a question of fact
GIO argued that the original injury description was limited to tendinosis and bursitis, so the Review Panel had decided an entirely different injury when it considered the tear. The Court rejected that narrow approach. The statutory question is what matters the medical assessment was concerned with, assessed from the application, the insurer’s response, the medical evidence, the certificates, later referrals and the parties’ submissions.
The left shoulder was identified from the start as one of the body regions to be assessed for threshold status. GIO’s own submissions referred to the earlier report saying there was no tear and argued that the evidence did not show a qualifying tendon rupture. That submission made the existence and significance of a tear part of the live dispute, even though the short injury description used the words tendinosis and bursitis.
The Court also considered that the further assessment and referral history continued to include the shoulder. Later medical records supplied during the Review Panel process did not automatically create a new dispute, but they were capable of informing the existing question whether the accident-related shoulder injury was threshold or non-threshold.
Procedural fairness still required a real opportunity to respond
The Court accepted the general principle that a Review Panel cannot decide a crucial issue on a basis that neither party had a fair opportunity to address. Procedural fairness is practical: a party must know the important issue and have a meaningful opportunity to provide evidence or submissions about it.
On the facts, the Panel issued a direction identifying the later report and asked GIO to make submissions about whether the tear was caused by the accident. GIO responded with detailed submissions relying on the early ultrasound, the absence of a tear in that report, the time gap and the absence of a clear causal statement in later certificates. The Court considered that response sufficient to reject the procedural-fairness ground.
The Court did not require the Panel to tell GIO in advance that it would find the early ultrasound wrong. The Panel was entitled to use its medical expertise to explain that a negative ultrasound did not conclusively exclude pathology, while also relying on other evidence such as immediate symptoms, continuing problems, examination findings and the absence of another incident.
What the decision does not establish
Mohammed does not make an MRI or ultrasound finding decisive. The Court’s reasoning depended on the full evidence and the way the issue was contested. A later scan may be relevant to causation, but it must be tested against the timing, symptoms, examination findings, earlier imaging, intervening events and competing medical opinions.
It also does not allow a Review Panel to determine an issue that is genuinely outside the referred medical dispute without notice. The Court distinguished decisions such as *Cahill*, where a Review Panel determined a lumbar-spine issue on a basis not put to the parties and procedural fairness was denied. The scope of each dispute must be identified from its own record.
The judgment was judicial review, not a replacement medical opinion. It did not itself decide that Mr Mohammed had a particular WPI percentage or that every shoulder tear is non-threshold. It decided that the Review Panel’s process and legal approach were not shown to contain reviewable error.
Practical lessons for a threshold injury dispute
A claimant should describe the injury accurately and completely in the claim and PIC material, including the body part, symptoms, clinical findings, imaging and any suspected tendon, ligament, cartilage or nerve injury. An insurer should identify the exact pathology it says is absent or unrelated, rather than relying only on a broad label such as “soft tissue”.
Keep the complete imaging reports and, where possible, the actual images. A report that says “no tear” may be important, but it is not the end of a causation analysis. The chronology should show when symptoms began, what examination found, whether treatment helped, whether there was another incident and when later imaging was obtained.
If a Review Panel raises a new medical issue, respond to the issue rather than only objecting to its existence. If the issue truly falls outside the dispute, identify the missing notice, the evidence or submission that would have been provided and the practical disadvantage caused. That is more useful than a bare procedural objection.
Evidence checklist for a shoulder threshold dispute
A focused medical-dispute bundle should usually include:
- the original insurer decision, internal-review decision and PIC application or referral
- all early GP, ambulance, hospital and physiotherapy records recording symptoms and mechanism
- the first and later ultrasound, MRI or other imaging reports and the underlying images where available
- clinical findings about active movement, weakness, impingement, tenderness and functional limitation
- certificates of capacity and specialist reports addressing diagnosis, causation and the statutory threshold definition
- the insurer’s submissions, PIC directions, response deadlines and any new material relied upon
- a chronology identifying any prior shoulder problem, later incident, treatment course and change in symptoms
Case analysis
Key takeaways
- 1.The scope of a medical dispute is determined from the whole factual and procedural record.
- 2.A short injury description is important but is not always the only evidence defining the dispute.
- 3.A later tear finding can be considered where the body region and the tear issue were already part of the contested threshold assessment.
- 4.A Review Panel must give a party a practical opportunity to answer a crucial new issue.
- 5.Imaging must be considered with symptoms, examination, timing, causation and competing records.
- 6.Judicial review addresses legal or procedural error, not simply disagreement with the medical result.
Frequently asked questions
- Does a later shoulder tear automatically make an injury non-threshold?
- No. Mohammed concerned the scope of the dispute and the process used. Whether a tear is accident-related and meets the statutory definition still depends on the evidence and medical assessment.
- Can a PIC Review Panel consider evidence not in the original application?
- It may be able to where the evidence relates to a matter already referred and the parties’ submissions and procedure show that issue is live. The party affected must still receive procedural fairness.
- Is an ultrasound saying “no tear” conclusive?
- Not necessarily. Its weight depends on the scan, timing, interpreter, symptoms, later evidence and the medical reasoning. Mohammed did not create a rule that early or later imaging always prevails.
- What if the insurer says my injury description did not include the real diagnosis?
- Compare the description with the insurer’s reply, medical reports, certificate and later directions. If the issue was actually contested, it may form part of the medical dispute; if it is genuinely new, notice and a new pathway may be required.
- What is the difference between threshold injury and WPI?
- Threshold status asks whether the injury falls within the statutory threshold definition. WPI is a separate impairment assessment relevant to some damages questions. One does not automatically answer the other.
- Did Mohammed decide the claimant’s damages entitlement?
- No. It was a judicial-review decision about a Review Panel certificate and procedural legality. It did not decide fault, damages, WPI percentage or the value of the claim.
Related NSW CTP guides
Official sources
Case-specific CTP review
Do you need advice about a threshold injury or Review Panel decision?
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General information: This case note is not legal advice. A case does not determine the result of another claim. The applicable legislation, procedural history, evidence and time limits must be checked for the individual matter.