F06

Other mental disorders due to known physiological condition

FY2027Chapter 5: Mental, Behavioral and Neurodevelopmental disorders/F01–F09 Mental disorders due to known physiological conditions

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

Code first
Excludes1
Excludes2

F06 is a non-billable ICD-10-CM code category for other mental disorders due to known physiological condition. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are F06.0 Psychotic disorder with hallucinations due to known physiological condition, F06.1 Catatonic disorder due to known physiological condition, F06.2 Psychotic disorder with delusions due to known physiological condition, F06.3 Mood disorder due to known physiological condition and 3 more. Its coding notes include a Code first instruction, 1 Excludes1 entry and 4 Excludes2 entries.

Code first

If the underlying condition listed here is present and known, sequence it first.

This code

the underlying physiological condition

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code

unspecified dementia (F03.-)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

This code

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)

Also from chapter/block level (1 note)

Inherited from Chapter 5 Mental, Behavioral and Neurodevelopmental disorders

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

Includes

Further defines or gives examples of the content of the category.

This code

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

Also from chapter/block level (1 note)

Inherited from Chapter 5 Mental, Behavioral and Neurodevelopmental disorders

disorders of psychological development

Notes

Also from chapter/block level (1 note)

Inherited from F01–F09 Mental disorders due to known physiological conditions

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.

More specific codes under F06 7