F06.7 Mild neurocognitive disorder due to known physiological condition

Not billable (header)Chapter 5

Report one of the more specific codes below.

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Codes under this one

F06.70 Mild neurocognitive disorder due to known physiological condition without behavioral disturbance
F06.71 Mild neurocognitive disorder due to known physiological condition with behavioral disturbance

Instructional notes

Chapter 5

Excludes2Not included here: the patient may have both; report both when both are present.

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

Includes

disorders of psychological development

Section F01-F09

Notes

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.

F06

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.

unspecified dementia (F03.-)

Excludes2Not included here: the patient may have both; report both when both are present.

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)

Code firstSequence the underlying condition first.

the underlying physiological condition

Includes

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

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.

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)

Code firstSequence the underlying condition first.

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.-)

Inclusion terms

Mild neurocognitive impairment due to a known physiological condition

Chapter 5: Mental, Behavioral and Neurodevelopmental disorders · F01-F09 Mental disorders due to known physiological conditions (F01-F09)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.