ICD-10-CM 2027 diagnosis code
F06Other mental disorders due to known physiological condition
F06 is a header code, so it can't be reported by itself. Choose one of the 7 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About F06
F06 is the ICD-10-CM diagnosis code for other mental disorders due to known physiological condition. It belongs to block F01-F09 (mental disorders due to known physiological conditions) and chapter 5 (mental, Behavioral and Neurodevelopmental disorders). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: F06.0 (condition), F06.1 (condition), F06.2 (condition), F06.3 (condition), F06.4 (condition), F06.7 (condition) and F06.8 (condition).
Don't report F06 together with the conditions in its Excludes1 note: unspecified dementia (F03.-).
The conditions in its Excludes2 note aren't part of F06, but may be coded alongside it if the patient has both: delirium due to known physiological condition (F05), dementia as classified in F01-F02 and other mental disorders associated with alcohol and other psychoactive substances (F10-F19).
Code first: the underlying physiological condition.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under F06
- F06.0Psychotic disorder with hallucinations due to known physiological conditionBillable
- F06.1Catatonic disorder due to known physiological conditionBillable
- F06.2Psychotic disorder with delusions due to known physiological conditionBillable
- F06.3Mood disorder due to known physiological condition
- F06.30Mood disorder due to known physiological condition, unspecifiedBillable
- F06.31Mood disorder due to known physiological condition with depressive featuresBillable
- F06.32Mood disorder due to known physiological condition with major depressive-like episodeBillable
- F06.33Mood disorder due to known physiological condition with manic featuresBillable
- F06.34Mood disorder due to known physiological condition with mixed featuresBillable
- F06.4Anxiety disorder due to known physiological conditionBillable
- F06.7Mild neurocognitive disorder due to known physiological condition
- F06.8Other specified mental disorders due to known physiological conditionBillable
Coding notes
- 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.-)
- the underlying physiological condition
Notes that apply from higher levels
Instructions written at a parent level also apply to F06.
Broader instructions also apply from F01-F09 Mental disorders due to known physiological conditions and Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about F06
Is F06 billable?
- No. F06 is a header code. Report one of its more specific subcodes instead.