Mild neurocognitive disorder due to known physiological condition with behavioral disturbance

• mental disorders due to endocrine disorder
• mental disorders due to exogenous hormone
• mental disorders due to exogenous toxic substance
• mental disorders due to primary cerebral disease
• mental disorders due to somatic illness
• mental disorders due to systemic disease affecting the brain

unspecified dementia (F03.-)

• delirium due to known physiological condition (F05)
• dementia as classified in F01-F02
• other mental disorders associated with alcohol and other psychoactive substances (F10-F19)

the underlying physiological condition

Mild neurocognitive impairment due to a known physiological condition

• age related cognitive decline (R41.81)
• altered mental status (R41.82)
• cerebral degeneration (G31.9)
• change in mental status (R41.82)
• cognitive deficits following (sequelae of) cerebral hemorrhage or infarction (I69.01-I69.11-, I69.21-I69.31-, I69.81- I69.91-)
• dementia (F01.-, F02.-, F03.-)
• mild cognitive impairment due to unknown or unspecified etiology (G31.84)
• neurologic neglect syndrome (R41.4)
• personality change, nonpsychotic (F68.8)

• the underlying physiological condition, such as:
• Alzheimer's disease (G30.-)
• human immunodeficiency virus [HIV] disease (B20)
• Huntington's disease (G10)
• Neurocognitive disorder with Lewy bodies (G31.83)
• other frontotemporal neurocognitive disorder (G31.09)
• Parkinson's disease (G20.-)
• systemic lupus erythematosus (M32.-)
• traumatic brain injury (S06.-)
• vitamin B deficiency (E53.-)

disorders of psychological development

symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

This block comprises a range of mental disorders grouped together on the basis of their having in common a demonstrable etiology in cerebral disease, brain injury, or other insult leading to cerebral dysfunction. The dysfunction may be primary, as in diseases, injuries, and insults that affect the brain directly and selectively; or secondary, as in systemic diseases and disorders that attack the brain only as one of the multiple organs or systems of the body that are involved.