Injury categories in Australian personal injury law
Injury types: whiplash, TBI, spinal, psychological, occupational disease
Australian personal injury law treats different injury categories quite differently. The diagnostic threshold, the evidence pathway, the available scheme and the typical settlement range all vary by injury type. This guide summarises the five major categories, with indicative settlement bands drawn from publicly reported outcomes.
★Key takeaways
- ✓Personal injury law in Australia divides injuries into broad categories: musculoskeletal (including whiplash), traumatic brain injury, spinal cord injury, psychological injury, and occupational disease. Each has a different evidence pathway and different scheme rules.
- ✓The settlement bands on this page are indicative ranges drawn from publicly reported settlements and court judgments. Real outcomes depend on the specific facts of your case.
- ✓Catastrophic injuries (severe TBI, paraplegia, tetraplegia) are often administered by Lifetime Care + Support Authorities for treatment and care funding, with a separate common-law claim for economic loss and general damages.
- ✓Time limits are jurisdiction-specific and run from different events depending on the injury – diagnosis date for occupational disease, accident date for trauma. Seek advice on time limits immediately.
- ✓This page is general information, not legal advice. Compensation depends on the specific facts of your case. Speak with an admitted lawyer in your state for advice.
Injury category
Whiplash and cervical spine injury
Whiplash-associated disorder (WAD) is the most common injury in motor vehicle accidents. It ranges from a transient soft-tissue strain that resolves within weeks to a permanent cervical injury with chronic pain, headaches and radiculopathy. Schemes treat minor whiplash quite differently from non-minor cervical injury – the classification drives the value of the claim.
Sub-types
WAD I (minor)
Neck complaint of pain, stiffness or tenderness. No physical signs. Expected to resolve within weeks to months.
WAD II (moderate)
Neck pain plus musculoskeletal signs (decreased range of motion, point tenderness). Resolution variable.
WAD III (serious)
Neck pain plus neurological signs (decreased deep tendon reflexes, weakness, sensory deficits). Often slow recovery; some permanent.
WAD IV (severe)
Neck pain and fracture or dislocation. Surgical management often required. Permanent impairment likely.
Indicative settlement bands
| Severity | Indicative range | Notes |
|---|---|---|
| WAD I – resolves <12 months | $5,000 – $25,000 | NSW MAIA "minor" classification limits damages to medical and lost wages. |
| WAD II – ongoing symptoms | $30,000 – $120,000 | Non-minor classification opens economic loss and general damages. |
| WAD III – neurological deficit | $100,000 – $400,000 | Higher general damages plus future medical care. |
| WAD IV – fracture/dislocation | $250,000 – $1.5M+ | Surgery, possible fusion, permanent impairment; large future economic loss component. |
Indicative only. Real outcomes depend on liability, evidence, scheme caps and the specific facts of your case.
Claim pathway
CTP claim (motor vehicle), workers compensation (workplace), or public liability (slip/fall, recreational). Pathway depends on accident circumstances.
Time limit
CTP: 6 months to lodge in most states (3 months in NSW MAIA for full statutory benefits). Workers compensation: 6 months (most states). Court proceedings: typically 3 years from injury date.
Evidence usually required
- Treating GP and physiotherapist records
- MRI/CT of cervical spine
- Specialist orthopaedic or neurosurgical opinion
- Vocational evidence if work has been affected
- Functional capacity evaluation for non-minor cases
Injury category
Traumatic brain injury (TBI)
Traumatic brain injury is graded by the Glasgow Coma Scale (GCS) at presentation and by the duration of post-traumatic amnesia (PTA). Even "mild" TBI (concussion) can have lasting cognitive and behavioural effects, and grading is one of the most heavily contested aspects of TBI litigation.
Sub-types
Mild TBI (concussion)
GCS 13–15 at presentation, PTA under 24 hours. Most resolve in 3 months; a minority develop persistent post-concussion syndrome.
Moderate TBI
GCS 9–12 at presentation, PTA 1–7 days. Cognitive, behavioural and physical deficits common; return to pre-injury function partial in most cases.
Severe TBI
GCS 3–8 at presentation, PTA >7 days. Significant cognitive impairment, often life-changing. Ongoing rehabilitation, supported accommodation common.
Indicative settlement bands
| Severity | Indicative range | Notes |
|---|---|---|
| Mild TBI – resolves | $25,000 – $120,000 | Typical motor accident concussion that resolves within 3–6 months. |
| Mild TBI – persistent symptoms | $150,000 – $500,000 | Persistent post-concussion syndrome with vocational impact. |
| Moderate TBI | $500,000 – $2.5M | Cognitive, behavioural and vocational deficits; future care component variable. |
| Severe TBI | $2M – $10M+ | Life-care needs dominate; rehabilitation, accommodation, attendant care. |
Indicative only. Real outcomes depend on liability, evidence, scheme caps and the specific facts of your case.
Claim pathway
CTP claim, workers compensation common-law (where access permitted), public liability or assault claim. Lifetime care for catastrophic TBI may be funded by Lifetime Care + Support Authorities (NSW LTCS, VIC TAC, similar in other states) rather than (or in addition to) common-law damages.
Time limit
Court proceedings: 3 years in most states (extended for children and those under legal incapacity). Lifetime Care Scheme registrations have their own deadlines – typically within weeks of accident.
Evidence usually required
- Ambulance + emergency department records (GCS at presentation)
- CT and MRI of brain
- Neuropsychological assessment (cognitive impact)
- Treating neurologist and rehabilitation specialist opinions
- Vocational evidence and pre-injury school/work records
- Family observation evidence on behavioural change
Injury category
Spinal cord injury (paraplegia and tetraplegia)
Spinal cord injury (SCI) involves damage to the spinal cord causing loss of motor and/or sensory function below the level of injury. Outcomes are determined by the level (cervical, thoracic, lumbar) and the completeness (ASIA Impairment Scale A–E). Lifetime-care needs dominate the damages calculation; many catastrophic SCI claims are administered by Lifetime Care + Support Authorities.
Sub-types
Incomplete SCI (ASIA B–D)
Some motor or sensory function preserved below the level of injury. Outcomes variable; functional return possible.
Paraplegia (T1 and below, complete)
Loss of motor and sensory function in the lower body. Upper limbs preserved. Wheelchair-dependent; significant aids and modifications required.
Tetraplegia (C1–C8, complete)
Loss of motor and sensory function in arms and legs. Highest levels require ventilator support and 24/7 attendant care. Among the most expensive injuries to care for over a lifetime.
Indicative settlement bands
| Severity | Indicative range | Notes |
|---|---|---|
| Incomplete SCI with recovery | $500,000 – $3M | Future medical care variable; significant general damages. |
| Paraplegia | $3M – $10M | Lifetime care, accommodation modification, mobility equipment, plus loss of earning capacity. |
| Low tetraplegia (C7–C8) | $6M – $15M+ | Attendant care 16+ hours/day, equipment, modifications. |
| High tetraplegia (C1–C4, ventilator) | $10M – $25M+ | Among the highest-value claims in Australian PI; often Lifetime Care Scheme funded. |
Indicative only. Real outcomes depend on liability, evidence, scheme caps and the specific facts of your case.
Claim pathway
CTP claim, workers compensation common-law (where access permitted), public liability. Catastrophic SCI is commonly registered under the relevant Lifetime Care + Support Authority for treatment and care funding, with common-law damages claim for economic loss and general damages running separately.
Time limit
Common-law proceedings: 3 years in most states (extended for children). Lifetime Care registrations: usually within months of injury – early registration is critical.
Evidence usually required
- Acute hospital and rehabilitation records
- ASIA Impairment Scale classification
- MRI of spine confirming level and completeness
- Treating rehabilitation specialist and physiatrist opinions
- Occupational therapy assessment of care needs
- Architectural report on home modifications
- Vocational economic loss report
Injury category
Psychological injury (PTSD, depression, adjustment disorder)
Psychological injury covers a range of conditions arising from a traumatic event or sustained workplace exposure: post-traumatic stress disorder (PTSD), major depressive disorder, generalised anxiety disorder, and adjustment disorder. Frontline workers, healthcare workers and survivors of serious incidents are particularly affected. The diagnostic threshold and chronicity drive the value.
Sub-types
Adjustment disorder
Emotional or behavioural symptoms in response to an identifiable stressor. Generally resolves within months of the stressor ending. DSM-5 criteria.
Major depressive disorder
Persistent low mood, anhedonia, sleep and appetite disturbance for ≥2 weeks. Significant functional impact.
Post-traumatic stress disorder (PTSD)
Exposure to actual or threatened death/serious injury, plus intrusion, avoidance, negative cognition and hyperarousal symptoms persisting ≥1 month. DSM-5 criteria.
Complex PTSD
Prolonged or repeated trauma exposure with additional disturbance in self-organisation. ICD-11 recognises C-PTSD as a distinct condition.
Indicative settlement bands
| Severity | Indicative range | Notes |
|---|---|---|
| Adjustment disorder, time-limited | $20,000 – $80,000 | Most settle on the basis of medical expenses and short-term wage loss. |
| Major depression, ongoing | $60,000 – $300,000 | Vocational impact, treating psychiatrist evidence on prognosis. |
| PTSD, chronic | $150,000 – $800,000 | Often significant economic loss component; vocational rehabilitation evidence. |
| PTSD, work-disabling | $300,000 – $1.5M+ | Where the worker is permanently unable to return to pre-injury work or any work. |
Indicative only. Real outcomes depend on liability, evidence, scheme caps and the specific facts of your case.
Claim pathway
Workers compensation (most common for occupational stress, bullying and traumatic exposure cases), CTP claim (where psychological injury arose from a motor vehicle accident), or public liability (witness or victim of a traumatic event). Many state schemes require a stricter "mental health/psychological" causation test than for physical injury.
Time limit
Workers compensation: 6 months from when the worker became aware of the connection to work. Court proceedings: 3 years from when the worker first sought treatment, generally. Causation and onset dates are heavily contested in psychological injury matters.
Evidence usually required
- Treating psychiatrist and psychologist records (most important)
- GP records pre- and post-incident
- Workplace incident reports and complaints
- Independent medical examination (IME) reports
- Vocational assessment and employer responses to graduated return-to-work plans
- Witness evidence on observable change
Injury category
Occupational disease (asbestos, RSI, dermatitis)
Occupational disease covers conditions caused by work exposure rather than a discrete accident: asbestos-related disease (mesothelioma, asbestosis, lung cancer), occupational dermatitis, repetitive strain injury (RSI), occupational asthma, noise-induced hearing loss, and silicosis from engineered stone work. Latency periods can be decades; identifying every exposure and every potentially-liable employer is the central challenge.
Sub-types
Mesothelioma
Aggressive malignancy of the pleural or peritoneal lining caused by asbestos exposure. Median survival 8–14 months post-diagnosis. Latency commonly 20–50 years.
Asbestosis
Diffuse interstitial fibrosis of the lung from asbestos exposure. Progressive; non-malignant. Distinct from mesothelioma.
Silicosis
Progressive lung fibrosis from inhaled silica dust. Surging in stone-bench-top industry workers in Australia 2018–2024.
Occupational dermatitis
Skin condition caused by repeated contact with workplace allergens or irritants. Common in healthcare, hairdressing, cleaning.
RSI / overuse injury
Cumulative-trauma injury affecting tendons, nerves or muscles from repetitive task exposure. Includes carpal tunnel syndrome, lateral epicondylitis.
Noise-induced hearing loss
Sensorineural hearing loss from sustained loud-noise exposure. Audiogram-confirmed; statutory hearing-loss schemes operate in most states.
Indicative settlement bands
| Severity | Indicative range | Notes |
|---|---|---|
| Occupational dermatitis, resolving | $15,000 – $80,000 | Medical expenses plus short-term wage loss; vocational change may be needed. |
| RSI / carpal tunnel | $30,000 – $200,000 | Surgical and conservative management; vocational impact often the dominant factor. |
| Noise-induced hearing loss | $10,000 – $100,000 | Statutory schemes in each state; private common-law claim possible. |
| Silicosis | $200,000 – $1.5M+ | Australia-wide compensation pathway via state Dust Diseases Tribunals + workers comp. |
| Asbestosis | $200,000 – $1M+ | Lung function decline drives quantum; expedited Dust Diseases process available. |
| Mesothelioma | $300,000 – $1.5M+ | Expedited proceedings due to short prognosis. NSW Dust Diseases Tribunal is the principal venue. |
Indicative only. Real outcomes depend on liability, evidence, scheme caps and the specific facts of your case.
Claim pathway
Workers compensation (most), Dust Diseases Tribunal (NSW) for asbestos-related disease, public liability for non-employment exposures, and (for asbestos) the James Hardie Asbestos Injuries Compensation Fund and similar producer-funded schemes.
Time limit
Statutory limits typically run from the date of diagnosis or first medical attention, not the date of exposure (acknowledging long latency). For mesothelioma, NSW Dust Diseases Tribunal can fast-track to expedite proceedings while the claimant is alive. Always seek advice immediately on diagnosis.
Evidence usually required
- Complete employment history with all employers and exposure dates
- Industrial-hygiene evidence on exposure intensity and duration
- Medical confirmation of diagnosis (biopsy for mesothelioma)
- Audiogram (for hearing loss)
- GP and specialist records
- Co-worker witness evidence on exposure circumstances
Important
General information, not legal advice
Settlement bands on this page are indicative ranges drawn from publicly reported personal injury settlements and court judgments. They are not estimates of any specific claim. Real outcomes depend on liability, your medical and vocational evidence, contributory negligence, scheme caps and the defendant’s position. Time limits and impairment thresholds are state-specific and amended over time. Speak with an admitted lawyer in your state – preferably an Accredited Specialist in Personal Injury Law – before relying on any figure. See our disclaimer for the full notice.
Common questions
Injury types – common questions
Why are the settlement bands so wide?
Because real outcomes are fact-specific. The same diagnosis can produce dramatically different awards depending on the claimant’s age, pre-injury income, vocational impact, future-care needs, the strength of medical evidence, contributory negligence, scheme caps and the defendant’s position. The bands above reflect publicly reported settlements and judgments across a typical range – your case can sit outside the band either way.
Which injury category covers psychological injury after a car accident?
Psychological injury arising from a transport accident is generally claimed under the relevant CTP / motor accident scheme (NSW MAIA, VIC TAC, etc.) rather than workers compensation, even if a separate workers comp claim is also available. Where a workplace incident is the trigger, workers comp is the primary scheme. Speak with a lawyer admitted in your state – overlapping schemes are a common point of complexity.
How long does an asbestos / mesothelioma claim take?
Mesothelioma claims are routinely fast-tracked given the short prognosis after diagnosis. NSW Dust Diseases Tribunal can hear matters within months of registration; settlement is common. Asbestosis and other non-malignant dust diseases are not fast-tracked and run on standard timelines (12–24 months).
I had a pre-existing condition that the accident made worse. Can I still claim?
Yes. The legal principle is that the defendant takes the claimant as they find them – pre-existing conditions do not defeat a claim. The damages are assessed on the basis of the aggravation or acceleration of the pre-existing condition. The defendant is entitled to medical evidence on the natural history of the pre-existing condition to delineate "but for" the injury.
What evidence is most important for a TBI claim?
For TBI, neuropsychological assessment is usually the single most important piece of evidence – it objectively documents cognitive deficits not visible on imaging. Combined with the GCS recorded at emergency presentation, PTA duration, and rehabilitation specialist opinion on permanent impact, the neuropsychological report drives both the diagnosis and the quantum.