Reasonable Hypothesis SOP [1] | 37 of 2019 |
Balance of Probabilities SOP [2] | 38 of 2019 |
SOP Bulletin 207 [3]
G47.0
This SOP covers a disorder in which there is a persisting inability to initiate or maintain sleep, despite having adequate opportunity for sleep and suitable circumstances for sleep, and which results in clinically significant distress or impairment in functioning.
The SOP definition has DSM-5 based criteria, including sleep difficulty at least three nights per week and for at least 3 months, which should be met before the SOP is applied. Note also that the SOP covers more than the disorder as described in DSM-5, by including medication-related insomnia.
The relevant medical specialist is a sleep physician or a psychiatrist.
chronic insomnia disorder attributable to the effects of a substance - includes where insomnia is related to alcohol use disorder or substance use disorder, but does not include the temporary stimulating effects of e.g. caffeine consumption.
* not a disease or injury
Clinical onset will be based on when relevant symptoms first became persistent.
The condition can have a variable course and be responsive to treatment, particulalry of an underlying cause. An assessment of worsening would be based on the level of symptoms or degree of distress or functional impairment.
Links
[1] http://www.rma.gov.au/assets/SOP/2019/037.pdf
[2] http://www.rma.gov.au/assets/SOP/2019/038.pdf
[3] https://clik.dva.gov.au/system/files/media/SOP%20Bulletin%20207.pdf