When one workplace accident causes multiple injuries

Describe the accident, then list each diagnosis

Start with one accurate account of the event: for example, a fall from a platform with impact to the head, shoulder and knee. Then use medical evidence to identify the separate diagnoses rather than repeatedly calling them a “fall injury”.

Early emergency records may focus on the most urgent condition. Less obvious injuries can emerge after pain, swelling or concussion symptoms develop.

Direct, later and psychological conditions

A multiple-injury file may include:

• several physical injuries sustained directly in the same accident
• a later diagnosis that was present but not recognised initially
• a physical consequential condition arising from treatment or compensation
• a primary or secondary psychological condition requiring separate analysis

Match each diagnosis to the mechanism and evidence

The medical evidence should explain how each injury fits the forces and sequence of the accident. Imaging alone may not establish that a finding was caused or aggravated by the event; clinical history, examination and prior records may also matter.

For psychological conditions, identify whether the condition was caused directly by the traumatic work event or developed as a consequence of physical injury, pain or disability. That distinction can affect the legal and WPI analysis.

Create one master chronology

Combine the incident report, ambulance or hospital records, first GP review, scans, referrals, operations, certificates, treatment requests and insurer decisions. Note when each body part or condition was first reported and diagnosed.

The chronology should explain genuine delays, such as treatment initially concentrating on a fracture while shoulder or cognitive symptoms were still emerging.

Coordinate treatment without merging the diagnoses

Each specialist should understand the full accident but remain clear about the condition being treated. Competing restrictions can affect rehabilitation: for example, crutches for a leg injury may not be safe with an injured shoulder.

Treatment requests should identify the accepted diagnosis, purpose and functional benefit. A coordinated plan can reduce inconsistent advice and avoid one condition being overlooked.

Acceptance may differ by body part

An insurer may accept a fracture but dispute a disc injury, concussion or psychological condition from the same event. Compare each diagnosis with the wording of every liability notice.

Do not assume payment for one scan or consultation proves the whole condition is accepted. Ask for a clear written decision where the scope is uncertain.

Common multiple-injury disputes

Issues often include:

• a body part was not recorded in the first medical attendance
• imaging shows degeneration or a pre-existing condition
• the accident mechanism is said to be insufficient for one diagnosis
• a psychological condition is classified incorrectly or attributed to non-work factors
• capacity or treatment decisions consider only one accepted injury

How multiple impairments are assessed

The NSW Guidelines provide that impairments resulting from the same injury are assessed together, and more than one injury from the same incident is also assessed together. Valid physical impairments are combined using the Combined Values Chart where permitted, not added arithmetically.

Primary psychiatric impairment is assessed separately and is not combined with physical impairment. Secondary psychological impairment is not assessed for WPI. Overlapping physical methods must not rate the same loss twice.

Capacity and treatment should reflect the whole accepted picture

A certificate should describe the combined effect of accepted injuries on hours, mobility, lifting, concentration, driving and attendance. Suitable duties that accommodate one body part may still be unsafe because of another.

If the insurer relies only on one injury when deciding weekly payments or treatment, identify the other accepted or disputed diagnoses and the evidence showing their practical effect.

Evidence checklist

Organise the file by diagnosis while keeping one event chronology:

• incident, emergency, ambulance and hospital records
• first reports of every affected body part and symptom
• imaging, specialist reports and operative records for each diagnosis
• prior medical records where causation or deduction is disputed
• all acceptance, treatment, capacity and dispute notices
• one schedule linking each diagnosis to treatment, restrictions and current status