International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2020-09
Delirium is characterised by disturbed attention (i.e., reduced ability to direct, focus, sustain, and shift attention) and awareness (i.e., reduced orientation to the environment) that develops over a short period of time and tends to fluctuate during the course of a day, accompanied by other cognitive impairment such as memory deficit, disorientation, or impairment in language, visuospatial ability, or perception. Disturbance of the sleep-wake cycle (reduced arousal of acute onset or total sleep loss with reversal of the sleep-wake cycle) may also be present. The symptoms are attributable to a disorder or disease not classified under mental and behavioural disorders or to substance intoxication or withdrawal or to a medication.
sections/codes in this section (6D70-6D70)
- Delirium due to disease classified elsewhere (6D70.0)
- Delirium due to psychoactive substances including medications (6D70.1)
- Delirium due to multiple etiological factors (6D70.2)
- Delirium due to unknown or unspecified aetiological factors (6D70.3)
- Delirium, other specified cause (6D70.Y)
- Delirium, unspecified or unknown cause (6D70.Z)
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