2027 ICD-10-CM Diagnosis Code F06Other mental disorders due to known physiological condition

ICD-10-CM Codes›F01–F99›F01-F09›F06

ICD-10-CM F06
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

F06 is a non-billable ICD-10-CM category code for other mental disorders due to known physiological condition, so it cannot be submitted on claims. Use a more specific code from this category instead, such as F06.0, F06.1, F06.2, and F06.30.

Code Identity

ICD-10-CM Code
F06
Billable Status
No — Non-Billable Category
Code Describes
Other mental disorders due to known physiological condition
Short Description
Other mental disorders due to known physiological condition
Same as the full description in the CMS dataset.
Chapter
F01-F09
Mental disorders due to known physiological conditions

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF01-F09Mental disorders due to known physiological conditions
CategoryF06Other mental disorders due to known physiological condition
This CodeF06Other mental disorders due to known physiological condition

Specific Coding for Other mental disorders due to known physiological conditionOverview

Non-specific codes like F06 require more characters. Use one of these billable codes instead:

  • Use F06.0 for Psychotic disorder with hallucinations due to known physiological condition

  • Use F06.1 for Catatonic disorder due to known physiological condition

  • Use F06.2 for Psychotic disorder with delusions due to known physiological condition

  • F06.3 for Mood disorder due to known physiological condition

  • Use F06.30 for Mood disorder due to known physiological condition, unspecified

  • Use F06.31 for Mood disorder due to known physiological condition with depressive features

  • Use F06.32 for Mood disorder due to known physiological condition with major depressive-like episode

  • Use F06.33 for Mood disorder due to known physiological condition with manic features

  • Use F06.34 for Mood disorder due to known physiological condition with mixed features

  • Use F06.4 for Anxiety disorder due to known physiological condition

  • F06.7 for Mild neurocognitive disorder due to known physiological condition

  • Use F06.70 for Mild neurocognitive disorder due to known physiological condition without behavioral disturbance

  • Use F06.71 for Mild neurocognitive disorder due to known physiological condition with behavioral disturbance

  • Use F06.8 for Other specified mental disorders due to known physiological condition

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to F06: its own notes plus those printed at block F01-F09 and Chapter 5. A note printed at a category, block or chapter applies to every code under it.

Includes

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

On F06 itself
  • 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
From Chapter 5 (F01-F99) Mental and behavioural disorders applies to 872 codes
  • disorders of psychological development

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

  • unspecified dementia (F03.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

On F06 itself
  • 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)
From Chapter 5 (F01-F99) Mental and behavioural disorders applies to 872 codes
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Code First

The underlying condition named in the note is sequenced before this code.

  • the underlying physiological condition

Notes

General instructions on how these codes are used.

From Block F01-F09 Mental disorders due to known physiological conditions applies to 91 codes
  • 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.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name F06, its category, or a range that includes it.

Applicable To 1

These notes mention F06.

  • O99.34 Other mental disorders complicating pregnancy, childbirth, and the puerperium
    Conditions in F01-F09, F20-F52 and F54-F99 names F01-F09, which includes this code

Excludes2 2

These codes carry an Excludes2 note naming F06: its condition is not part of those codes, and both may be reported when the patient has both.

  • F63.1 Pyromania
    mental disorders due to known physiological condition (F01-F09) names F01-F09, which includes this code
  • F63.2 Kleptomania
    stealing in mental disorders due to known physiological condition (F01-F09) names F01-F09, which includes this code

Patient EducationClinical

Mental Disorders

Mental disorders (or mental illnesses) are conditions that affect your thinking, feeling, mood, and behavior. They may happen over a short period of time or come and go. Some can be chronic (long-lasting). They can affect your ability to relate to others and function each day..

The full article covers:

  • What are mental disorders?
  • What are some types of mental disorders?
  • What causes mental disorders?
  • Who is at risk for mental disorders?
  • How are mental disorders diagnosed?
  • What are the treatments for mental disorders?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About F06Overview

What is the ICD-10 code for other mental disorders due to known physiological condition?

F06 is the ICD-10-CM category for other mental disorders due to known physiological condition, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is F06 (Other mental disorders due to known physiological condition) a billable code?

No. This is a category header that groups the codes for other mental disorders due to known physiological condition, and headers cannot be submitted on claims. Claims for other mental disorders due to known physiological condition need a more specific code from this category, such as F06.0, F06.1, and F06.2.

Can F06 be reported with a code from F03?

Not as a rule. The Excludes1 note on F06 lists "unspecified dementia (F03.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

What is coded first with F06?

The Code First note reads: the underlying physiological condition. When one of these applies, it is sequenced before F06.