Code
Hierarchy
Notes
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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.
Inclusion Terms
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Mild neurocognitive impairment due to a known physiological condition
Code First
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the underlying physiological condition, such as:
- G30 Alzheimer's disease
- B20 Human immunodeficiency virus [HIV] disease
- G10 Huntington's disease
- G31.83 Neurocognitive disorder with Lewy bodies
- G31.09 Other frontotemporal neurocognitive disorder
- G20 Parkinson's disease
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systemic lupus erythematosus (M32.-)
- M32 Systemic lupus erythematosus (SLE)
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traumatic brain injury (S06.-)
- S06 Intracranial injury
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vitamin B deficiency (E53.-)
- E53 Deficiency of other B group vitamins
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the underlying physiological condition
Includes
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mental disorders due to endocrine disorder
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mental disorders due to exogenous hormone
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mental disorders due to exogenous toxic substance
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mental disorders due to primary cerebral disease
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mental disorders due to somatic illness
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mental disorders due to systemic disease affecting the brain
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disorders of psychological development
Excludes 1
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age related cognitive decline (R41.81)
- R41.81 Age-related cognitive decline
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altered mental status (R41.82)
- R41.82 Altered mental status, unspecified
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cerebral degeneration (G31.9)
- G31.9 Degenerative disease of nervous system, unspecified
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change in mental status (R41.82)
- R41.82 Altered mental status, unspecified
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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.-)
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mild cognitive impairment due to unknown or unspecified etiology (G31.84)
- G31.84 Mild cognitive impairment of uncertain or unknown etiology
- R41.4 Neurologic neglect syndrome
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personality change, nonpsychotic (F68.8)
- F68.8 Other specified disorders of adult personality and behavior
- F03 Unspecified dementia
Excludes 2
- F05 Delirium due to known physiological condition
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dementia as classified in F01-F02
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other mental disorders associated with alcohol and other psychoactive substances (F10-F19)
- F10-F19 Mental and behavioral disorders due to psychoactive substance use (F10-F19)
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symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
- R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)