austlii:nsw/NSWPICMP/2025/586
General information, not legal advice.
NSWPICMP
2025-08-08
Original judgment source is linked above.
Aghbolagh v Insurance Australia Limited t/as NRMA Insurance [2025] NSWPICMP 586
Insurance Australia Limited trading as NRMA Insurance
MOTOR ACCIDENTS - Motor Accident Injuries Act 2017; review of Medical Assessment Certificate (MAC); assessment of threshold injury under section 1.6(3); claimant suffered injury in a motor vehicle accident; Medical Assessor (MA) found the claimant sustained an adjustment disorder with mixed disturbance of mind caused by the accident (a threshold injury); claimant sought review; Held - pre-existing psychological condition had resolved; claimant had sustained persistent depressive disorder caused by the accident; MAC revoked; persistent depressive disorder is a non-threshold injury.
Certificate issued under s 7.23(1) of the Motor Accident Injuries Act 2017
28 March 2024 and certifies that the following injury caused by the accident was a non-threshold injury: * Persistent depressive disorder (dysthymia).
1 April 2023 the MAI Amendment Act provides that a "minor injury" is known as a "threshold injury" and "minor injuries" are known as "threshold injuries". 2. The definition of what constitutes a minor injury has not been amended and continues to apply to a threshold injury. 3. Any reference in these reasons to "minor injury" is a reference to a "threshold injury" and any reference to the word "minor" referring to the injury alleged to have occurred in the accident is a reference to "threshold". 4. A threshold injury is defined in s 1.6 of the MAI Act. Section 1.6(1)(a) of the MAI Act defines a "threshold psychological injury" as:
"A psychological or psychiatric injury that is not a recognised psychiatric illness."
"Each of the following injuries is included as a threshold injury for the purposes of the Act:
(a) acute stress disorder,
(b) adjustment disorder."
"5.3 The assessment will determine whether the injury related to the claim is a soft tissue injury or a threshold psychological or psychiatric injury caused by the motor accident.
5.4 Insurers should not require injured persons to undergo diagnostic imaging for the purpose of the insurer determining whether the injury related to the claim is a threshold injury. Diagnostic imaging is not considered necessary to assess threshold injury.
5.5 A diagnosis for the purpose of a threshold injury decision must be based on a clinical assessment by a medical practitioner or other suitably qualified person independent from the insurer.
5.6 The assessment of whether an injury caused by the accident is a threshold injury for the purposes of the Act should be based on the evidence available and include all relevant findings derived from:
(a) a comprehensive accurate history, including pre-accident history and pre-existing conditions
(b) a review of all relevant records available at the assessment
(c) a comprehensive description of the injured person's current symptoms
(d) a careful and thorough physical and/or psychological examination
(e) diagnostic tests available at the assessment. Imaging findings that are used to support the assessment should correspond with symptoms and findings on examination."
"5.10 In assessing whether an injury is a threshold psychological or psychiatric injury, an assessment of whether a psychiatric illness is present is essential.
5.11 The assessment of whether a psychiatric illness is present must be made using the Diagnostic & Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR), published by the American Psychiatric Association.
5.12 Where the symptoms associated with the injured person's psychological or psychiatric injury do not meet the assessment criteria for a recognised psychiatric illness, with the exception of acute stress disorder and adjustment disorder, the injury will be considered a threshold injury."
"He states that all of a sudden without warning while stationary at a traffic light the vehicle in which he was travelling had been struck from the rear. He states the vehicle was written off. He states "It was such a loud bang I thought I was going to die. That's still the flash that goes through my mind". He states he was in a state of shock initially. He was not taken to hospital."
"I read the complete record, as at 11 June 2022, of the Pacific Medical & Dental Centre in Blacktown. I note the entry, dated 12 November 2020, in which it was noted that his commercial license had been suspended for a year for unclear reasons. It was also documented that he had a previous discectomy, something that had not been disclosed to me at interview. On 5 May 2019, I noted that he had surgery for achalasia and also had a problem with palpitations and heavy breathing, perhaps suggesting anxiety. On 19 July 2018, there was reference to a history of depression and his intention to claim permanent disability to use his superannuation. This was at odds with the history provided to me at interview. It was also noted that he had a previous workers' compensation claim which was also not disclosed to me at interview. I note, on 7 June 2018, the claimant described a reaction of anxiety to Palexia."
Psychosocial history and pre-accident history
History of symptoms and treatment following the accident
Details of any relevant injuries or conditions sustained since the accident
(a) Depressed mood for most of the day for more days than not;
(b) Presence while depressed of the following:
(i) Poor appetite.
(ii) Insomnia.
(iii) Low energy or fatigue.
(iv) Low self-esteem.
(v) Poor concentration or difficulty making decisions.
(vi) Feelings of hopelessness;
(c) During the two-year period, he has never been without symptoms;
(d) Criteria for major depressive disorder has been continuously present;
(e) There has never been a manic or hypomanic episode, and he has never met the criteria for cyclothymic disorder;
(f) The symptoms are not attributable to the physiological effects of a substance or another medical condition;
(g) The symptoms cause clinically significant distress or impairment in social occupational or other areas of functioning, and
(h) The anxious distress specifier captures post-traumatic symptoms.
"The question of causation of injuries was not dealt with in Part 5 of the Guidelines but causation was addressed in Part 6, which related to assessment of permanent impairment. There is no reason to think that different principles were intended to be applied when a medical assessment was being made in relation to causation of minor injuries. Clauses 6.5 to 6.7 provided:
6.5 An assessment of the degree of permanent impairment is a medical assessment matter under clause 2(a) of Schedule 2 of the Act. The assessment must determine the degree of permanent impairment of the injured person as a result of the injury caused by the motor accident. A determination as to whether the injured person's impairment is related to the accident in question is therefore implied in all such assessments. Medical assessors must be aware of the relevant provisions of the AMA4 Guides, as well as the common law principles that would be applied by a court (or claims assessor) in considering such issues.
6.6 Causation is defined in the Glossary at page 316 of the AMA4 Guides as follows:
'Causation means that a physical, chemical or biologic factor contributed to the occurrence of a medical condition. To decide that a factor alleged to have caused or contributed to the occurrence or worsening of a medical condition has, in fact, done so, it is necessary to verify both of the following:
This, therefore, involves a medical decision and a non-medical informed judgement.
6.7 There is no simple common test of causation that is applicable to all cases, but the accepted approach involves determining whether the injury (and the associated impairment) was caused or materially contributed to by the motor accident. The motor accident does not have to be a sole cause as long as it is a contributing cause, which is more than negligible. Considering the question 'Would this injury (or impairment) have occurred if not for the accident?' may be useful in some cases, although this is not a definitive test and may be inapplicable in circumstances where there are multiple contributing causes."
"For the purposes of this Act, a threshold injury is, subject to this section, one or more of the following -
(b) a psychological or psychiatric injury that is not a recognised psychiatric illness."
"(2) Each of the following injuries is included as a threshold psychological or psychiatric injury for the purposes of the Act
(3) In this clause, acute stress disorder and adjustment disorder have the same meanings as in the document entitled Diagnostic and Statistical Manual of Mental Disorders (DSM-5)"
[7] Claimant's documents p 50, 86 and 116
[28] Briggs v IAG Limited Trading as NRMA Insurance [2022] NSWSC 372.
Aghbolagh
Insurance Australia Limited t/as NRMA Insurance [2025] NSWPICMP 586;