of the disorders in the sleep-wake disorders diagnostic class. The other specified insomnia dis-
order category is used in situations in which the clinician chooses to communicate the specific
reason that the presentation does not meet the criteria for insomnia disorder or any specific
sleep-wake disorder. This is done by recording “other specified insomnia disorder” followed by
the specific reason (e.g., “brief insomnia disorder”).
Examples of presentations that can be specified using the “other specified” designation
include the following:
1.Brief insomnia disorder:  Duration is less than 3 months.
2.Restricted to no nrestorative sleep:  Predominant complaint is nonrestorative sleep
unaccompanied by other sleep symptoms such as difficulty falling asleep or remaining
asleep.
Unspecified Insomnia Disorder
780.52 (G47.00)
This category applies to presentations in which symptoms characteristic of insomnia disor-
der that cause clinically significant distress or impairment in social, occupational, or other
important areas of functioning predominate but do not meet the full criteria for insomnia dis-
order or any of the disorders in the sleep-wake disorders diagnostic class. The unspecified