austlii:nsw/NSWPICMP/2025/347
General information, not legal advice.
NSWPICMP
2025-05-20
Original judgment source is linked above.
AAI Limited t/as GIO v Toskoski [2025] NSWPICMP 347
MOTOR ACCIDENTS - Motor Accident Injuries Act 2017; review of Medical Assessment Certificate (MAC); medical assessment of whole person impairment (WPI); claimant injured in motor vehicle accident; Medical Assessor determined the claimant's permanent impairment at 15%; insurer sought a review under ; Review Panel re-examined the claimant; - MAC revoked; new certificate issued; substituted determination of 7% WPI.
Issued under Division 7.5 of the Motor Accident Injuries Act 2017
8 September 2023, and substitutes the determination to certify that the injuries referred to the Panel and caused by the accident, gave rise to a WPI of 7%.
"7.21 Assessment of degree of permanent impairment
(1) The assessment of the degree of permanent impairment of an injured person for the purposes of this Act is to be made in accordance with the Motor Accident Guidelines. The assessed degree of permanent impairment is to be expressed as a percentage.
(2) Impairments that result from more than one injury arising out of the same motor accident are to be assessed together to assess the degree of permanent impairment of the injured person.
(3) In assessing the degree of permanent impairment, regard must not be had to any psychiatric or psychological injury, impairment or symptoms, unless the assessment of the degree of permanent impairment is made solely with respect to the result of a psychiatric or psychological injury.
(4) A medical assessor may decline to make an assessment of the degree of permanent impairment of an injured person until the assessor is satisfied that the impairment caused by the injury has become permanent."
6.31 The evaluation of the permanent impairment may be complicated by the presence of an impairment in the same region that existed before the relevant motor accident. If there is objective evidence of a pre-existing symptomatic permanent impairment in the same region at the time of the accident, then its value must be calculated and subtracted from the current WPI value. If there is no objective evidence of the pre-existing symptomatic permanent impairment, then its possible presence should be ignored.
6.32 The capacity of a medical assessor to determine a change in physical impairment will depend upon the reliability of clinical information on the pre-existing condition. To quote the AMA4 Guides (page 10): 'For example, in apportioning a spine impairment, first the current spine impairment would be estimated, and then impairment from any pre-existing spine problem would be estimated. The estimate for the pre-existing impairment would be subtracted from that for the present impairment to account for the effects of the former. Using this approach to apportionment would require accurate information and data on both impairments.' Refer to clause 6.218 for the approach to a pre-existing psychiatric impairment.
6.33 Pre-existing impairments should not be assessed if they are unrelated or not relevant to the impairment arising from the motor accident."
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 the Personal Injury Commission) 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:
1. The alleged factor could have caused or contributed to worsening of the impairment, which is a medical determination.
2. The alleged factor did cause or contribute to worsening of the impairment, which is a non-medical determination.'
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."
[1.1] - [1.4] The insurer submits the claimant was involved in a motor vehicle accident on 27 September 2019. She lodged an application for assessment of threshold injury on 24 September 2021 for both physical and psychological injuries. On 29 August 2022, she applied for assessment of Whole Person Impairment (WPI) for both injury types. In December 2022, the claimant requested the same Medical Assessor to evaluate both disputes regarding the alleged physical injuries. Medical Assessor Home conducted the assessments, issuing a Certificate on 10 May 2023 determining that the claimant had threshold physical injuries.
[1.5] - [1.7] On 15 June 2023, the claimant's solicitor requested Medical Assessor Nagesh to assess whether the alleged psychological injury was a threshold/non-threshold injury. The claimant was assessed by Medical Assessor Nagesh on 1 August 2023, and a certificate dated
8 September 2023 was issued, though it was not provided to the parties until 11 September 2023.
In the certificate, Medical Assessor Nagesh recorded:
[1.8] - [1.9] The insurer submits that the Certificate of Medical Assessor Nagesh is incorrect in a material respect and requests that the matter be referred to a Review Panel for review. This application is limited to Medical Assessor Nagesh's assessment of Whole Person Impairment.
[2.1] - [2.2] The insurer refers to section 7.26(2) and section 7.26(5) of the MAI Act as grounds for review. The insurer submits that Medical Assessor Nagesh erred in his assessment by:
(a) Failing to sufficiently discharge his duty as a medical assessor.
(b) Failing to make appropriate enquiries of the claimant, leading to incorrect assumptions.
(c) Failing to apply the PIRS correctly.
[3.1] - [3.4] Medical Assessor Nagesh assessed the claimant as Class 2 for Travel, reasoning that she could drive independently up to a radius of five kilometres but could not travel to unfamiliar places without a support person. The insurer submits that previous assessments and the claimant's reports to her GP indicated greater limitations in her ability to drive, suggesting that Medical Assessor Nagesh may have failed to consider the treating medical evidence adequately.
[3.5] - [3.11] Medical Assessor Nagesh assessed the claimant as Class 3 for Adaptation, citing her inability to return to work since the motor vehicle accident and decreased ability to handle stress. The insurer contends that Medical Assessor Nagesh did not adequately inquire about the claimant's work history and circumstances post-accident. The claimant was on maternity leave at the time of the accident and returned to work part-time before ceasing employment due to her employer's requirement for a full-time worker. Had further enquiries been made, the insurer submits that the claimant would have been assessed at most as Class 2 for Adaptation.
[4.1] - [4.4] The insurer acknowledges that the Certificate of Medical Assessor Home dated 10 May 2023 was not before Medical Assessor Nagesh at the time of his assessment. This certificate provides evidence of the claimant's ability to return to employment post-accident. The insurer submits that this material is relevant and should be considered by a Review Panel when assessing the appropriate score under the PIRS category of "Adaptation."
[5.1] - [5.2] The insurer submits that had the claimant been correctly assessed with a Class 2 for Adaptation, the overall WPI would be under 10%, as the median score would become 2, resulting in a 7% WPI.
[6.1] - [ 6.3] The insurer submits that there is reasonable cause to suspect that the medical assessment was incorrect in a material respect, as per the criteria established in Elliott v Insurance Australia t/as NRMA Insurance [2014] NSWCA 1848. The insurer submits the culmination of the above factors warrants referral of the matter to a Review Panel for review to issue a new certificate.
History of symptoms and treatment following the motor accident
8 September 2023. Medical Assessor Nagesh concluded that the presentation was consistent with Persistent Depressive Disorder and calculated the whole person impairment as 15%. This calculation differs in the areas of social and recreational activities and adaptation. Kindly note the PIRS Scale for the differences. 7. Certificate by Medical Assessor Alan Home dated 10 May 2023, which mentioned the injuries caused by motor accident, cervical spine, soft tissue injury, non-verifiable reticular complaints in right upper extremity, lumbar spine soft tissue injury and right shoulder muscular pain secondary to neck complaint, arthritis, shoulder injuries for the purposes of the Act.
(a) Depressed most of the day, nearly every day as indicated by subjective report (e.g. feels sad, empty, hopeless) or observation made by others (e.g., appears tearful)
(b) Markedly diminished interest or pleasure in all, or almost all, activities most of the day, nearly every day (as indicated by subjective account or observation)
(c) Significant weight loss when not dieting or weight gain (e.g., change of more than 5% of body weight in a month), or decrease or increase in appetite nearly every day
(d) Insomnia or hypersomnia nearly every day
(e) Psychomotor agitation or retardation nearly every day (observable by others, not merely subjective feelings of restlessness or being slowed down)
(f) Fatigue or loss of energy nearly every day
(g) Feelings of worthlessness or excessive or inappropriate guilt (which may be delusional) nearly every day (not merely self-reproach or guilt about being sick).
(h) Diminished ability to think or concentrate, or indecisiveness, nearly every day (either by subjective account or as observed by others)
(i) Recurrent thoughts of death (not just fear of dying), recurrent suicidal ideation without a specific plan, or a suicide attempt or a specific plan for committing suicide
"Permanent impairment is impairment that has become static or well stabilised with or without medical treatment and is not likely to remit despite medical treatment.
A permanent impairment is considered to be unlikely to change substantially and by more than 3% in the next year with or without medical treatment."
Degree Of Permanent Impairment Psychiatric Impairment Rating Scale
Yes, received in the past. She is not on any current treatment.
Mild Impairment. Ms Toskoski reported that she brushes her teeth every day and showers at least once every morning. She reported that she has gained weight and currently weighs about 75 kilos. Her pre-accident weight was ranged from 62 to 66 kilos. She is able to do majority of the household chores including cooking; however, including cooking, she is also able to take care of herself and her children.
Mild Impairment. Ms Toskoski earlier enjoyed spending time with her husband, going out with friends, enjoying watching her son playing soccer and her daughter dancing. She also enjoyed cooking and taking care of her house. She said that she is not able to watch her son play soccer as she feels anxious that he might be in danger. She has, however, been able to go out to the restaurants with her husband and prefers to go to the local restaurants. She has her friendship group and is in touch with her best friend and she contacts her once in six months. She reported that her sister has been organising get-together with their cousins and calls her regularly. She has been socialising with her sisters and her cousins. She has also been able to go out for shopping on her own, but does not do "big shopping" and has to do a lot of self-talk about pain**.**
Mild Impairment. Ms Toskoski reported that she leaves her house to visit her mother, who lives in Bonnyrigg, which is a 10-minute drive. She also drives to pick her and drop her son and visits her brother, which is a 10-minute drive. She said that when she drives, she does not like loud noise in the car and seems to get distracted by it. She has been able to drive on M5 and M4 and regularly drives to the shopping mall without any difficulty. She, however, denied driving into far-off and unfamiliar areas.
Mild Impairment. Ms Toskoski reported that her husband has been very supportive and they have a loving, nurturing, caring and respectful relationship. She said that she, however, at times resented him for having a successful life when she was just staying at home and did not feel happy. She feels that at times, she is unable to discipline her son and her daughter has to intervene and that they do not understand her mental health. However, there were no periods of separation or domestic violence or spouse, relatives or community services looking after children.
Moderate Impairment. Ms Toskoski reported that she has difficulties in attention and concentration. She is unable to finish the tasks and gets distracted. She procrastinates doing the household chores. She said that she does not watch TV as she is unable to handle noise. She used to read books for pleasure earlier, but has not been reading as she struggles with that as well. She scored 3/3 on three-word repeat and 2/3 on three-word recall. She was able to state the days in a week both forward and backward manner without any difficulty. Ms Toskoski, however, during the assessment was asking us to repeat the questions and seemed to be distracted.
Mild Impairment. The review panel tried to clarify about the barriers impacting return to work and Ms Toskoski clarified that her inability to work was "mostly driven from physical pain." The review panel believed that she could work full-time, but in a different environment from that of her pre-injury job. The review panel believed that she can work no more than 20 hours each week in the same work role because of her ongoing mental health symptoms.
Psychiatric Impairment Rating Scale - Pre-existing/subsequent impairment
8 September 2023, and substitutes the determination to certify that the injuries referred to the Panel and caused by the accident, gave rise to a WPI of 7%.
AAI Limited t/as GIO
Toskoski [2025] NSWPICMP 347