Current threshold rule
Adjustment disorder after a motor accident
Adjustment disorder may be diagnosed where emotional or behavioural symptoms arise in response to an identifiable stressor and cause clinically significant distress or impairment. In NSW CTP, the current Regulation expressly treats adjustment disorder as a threshold injury. That classification is separate from treatment entitlement and any later permanent impairment assessment.
Motor accident mechanism
What can happen in a motor accident?
Rear-end crash
A person may struggle to adjust to pain, vehicle damage, time off work and loss of confidence after a rear impact.
Side-impact crash
Unexpected side impact may lead to worry, low mood and reduced travel while the claimant adapts to injury and claim stress.
Motorcycle fall
A rider may develop symptoms in response to physical limitations, loss of independence or inability to return to riding or work.
Pedestrian impact
A pedestrian may experience distress linked to rehabilitation, mobility restriction and disruption to family or employment roles.
Injuries and diagnoses that may follow
- adjustment disorder with anxiety
- adjustment disorder with depressed mood
- adjustment disorder with mixed anxiety and depressed mood
- another adjustment presentation identified under DSM-5-TR
- a different recognised condition such as PTSD or major depression requiring differential diagnosis
Symptoms to record accurately
- worry, tearfulness, low mood or irritability
- sleep and concentration difficulty
- reduced confidence, travel avoidance or withdrawal
- difficulty adapting to pain, disability, work loss or claim stress
- functional decline that is disproportionate to an ordinary short-lived response
Urgent health warning
Suicidal thoughts, inability to remain safe or severe deterioration requires urgent mental health support.
Clinical evidence
What objective findings and records matter?
The clinician should identify the stressor, timing, DSM-5-TR criteria, functional impairment and whether another psychiatric disorder better explains the presentation. Accident causation may include the injury and its consequences, but the report should explain that link.
| Record or test | What it can establish | What it cannot establish alone |
|---|---|---|
| Diagnostic interview | Assesses symptoms, identifiable stressor, timing, functional impairment and alternative diagnoses. | The phrase “difficulty coping” is not a complete diagnosis. |
| GP and psychology records | Show onset, progression, treatment, work capacity and response to changing stressors. | Treatment alone does not change the Regulation’s threshold classification. |
| Work and role evidence | May show the practical effect of pain, job loss, caring demands and reduced independence. | Economic stress does not by itself prove accident-caused psychiatric impairment. |
| Psychiatric review | Can confirm diagnosis, causation, differential diagnosis, prognosis and any permanent PIRS assessment. | A later different diagnosis should be explained rather than simply substituted. |
Part 5 classification
Is the injury threshold or non-threshold?
Regulation clause 4(2) expressly includes adjustment disorder as a threshold injury. It remains threshold even though it is a recognised diagnostic label. If the diagnosis later changes to another recognised psychiatric illness, the current diagnosis, criteria and causation must be evaluated rather than assuming the classification changes automatically.
Evidence consistent with a threshold classification
- a supported diagnosis of adjustment disorder
- symptoms not amounting to another recognised psychiatric illness
- distress linked to accident consequences without a different established disorder
- a provisional or unclear diagnosis requiring further assessment
Evidence that may support a non-threshold injury
- a different recognised psychiatric illness supported by its criteria and causation
- for example, properly established PTSD or major depressive disorder rather than adjustment disorder
- a reasoned diagnostic revision supported by longitudinal evidence
- objective neurological injury causing organic behavioural change, assessed separately
Separate questions: threshold injury classification does not set WPI, and receiving statutory benefits does not automatically create a common law damages entitlement.
Part 6 permanent impairment
How is WPI assessed for this injury?
Threshold classification and WPI are separate. If a permanent psychiatric impairment is properly assessed, a psychiatrist uses PIRS under clauses 6.201-6.228. Adjustment disorder does not carry a fixed percentage, and an acute or improving condition may not yet be permanent or stable.
| Assessment question | Applicable method | Important limit |
|---|---|---|
| Current diagnosis | Clause 6.213 requires a recognised DSM or ICD diagnosis with criteria identified. | The assessment should address whether adjustment disorder remains the best diagnosis. |
| Functional impairment | PIRS Tables 6.11-6.16 assess six areas of current function. | Temporary work absence or distress does not dictate all six classes. |
| Permanence and calculation | When stable, clauses 6.225-6.228 use median class, aggregate score and Table 6.17. | A threshold injury classification does not automatically mean 0% WPI, and WPI does not change the statutory classification by itself. |
- Confirm the diagnosis remains adjustment disorder at the assessment date.
- Assess sustainable function rather than the most distressed acute period.
- Address pre-existing psychiatric impairment using the same PIRS method where supported.
- Keep physical and psychiatric WPI separate.
- Do not rate pain or somatoform symptoms through PIRS.
The six PIRS tables
Psychiatric WPI is assessed across six areas of function. A psychiatrist assigns a class from the evidence in each area; the classes are not percentages and are not simply added or averaged.
| Guidelines table | Function assessed | Examples of useful evidence |
|---|---|---|
| Table 6.11 | Self-care and personal hygiene | washing, dressing, meals, medication and ordinary personal routines |
| Table 6.12 | Social and recreational activities | participation, initiation, frequency, support and withdrawal from usual activities |
| Table 6.13 | Travel | independent travel, public transport, driving, unfamiliar routes and support needed |
| Table 6.14 | Social functioning and relationships | family, friends, communication, conflict, isolation and capacity to maintain relationships |
| Table 6.15 | Concentration, persistence and pace | task completion, errors, supervision, breaks, reliability and sustained mental effort |
| Table 6.16 | Adaptation | response to work-like demands, stress, change, attendance and pre-injury roles where relevant |
Verified calculation example from the Guidelines
If the six supported class ratings are 2, 2, 3, 3, 4 and 4, the median class is 3 and the aggregate score is 18. Table 6.17 gives 22% WPI before any valid treatment adjustment. This demonstrates the calculation only. It is not a way to estimate WPI from symptoms without a psychiatrist’s assessment.
What does not establish the result by itself?
- the diagnosis name as a percentage
- distress about the claim alone
- a provisional diagnosis never reviewed
- time off work alone
- adding physical WPI
Accident-specific examples
Adjustment disorder during early rehabilitation
The condition is expressly threshold. Treatment evidence may still support statutory treatment or weekly-payment issues depending on the claim.
Later diagnosis of major depression
The clinician must explain the changed criteria, timing and accident causation. The page label “adjustment disorder” does not control the current classification.
Persistent symptoms near WPI assessment
A psychiatrist considers stability, diagnosis and six PIRS functions. There is no automatic percentage based on duration.
Claim file preparation
Evidence checklist
Assessment source
Adjustment disorder threshold and WPI source
Assessment source: Motor Accident Injuries Regulation 2017 clause 4(2)-(3); Motor Accident Guidelines v10.1 clauses 5.10-5.12 and 6.201-6.228; PIRS Tables 6.11-6.17.
Threshold injury: Adjustment disorder is expressly a threshold injury under the current Regulation. Treatment, causation and any permanent impairment remain separate evidence questions.
What the assessor checks
- express threshold classification
- DSM-5-TR approach
- PIRS method if permanent impairment is assessed
- separate physical and psychiatric streams
What does not establish the result by itself
- diagnosis as a percentage
- distress
- work absence
- combined WPI
Official sources
Related NSW CTP guides
Free claim check
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Frequently asked questions
- Is adjustment disorder a threshold injury in NSW CTP?
- Yes. Regulation clause 4(2) expressly includes adjustment disorder as a threshold injury.
- Does threshold mean treatment is never available?
- No. Threshold classification and entitlement to reasonable treatment are different questions under the scheme.
- What if my diagnosis later becomes PTSD or major depression?
- The current diagnosis, criteria and accident causation should be reviewed. A diagnostic change is not accepted merely because a different label appears.
- Can adjustment disorder have WPI?
- A psychiatrist may assess permanent psychiatric impairment using PIRS where appropriate, but no fixed percentage follows from the diagnosis and stability must be established.
- Can its WPI be added to physical WPI?
- No. Psychiatric and physical impairment remain separate for the greater-than-10% test.