MCMedicalCodingSoftware
F06

F06: Other mental disorders due to known physiological condition

Non-billable headerICD-10-CM

F06 is a non-billable header ICD-10-CM code for other mental disorders due to known physiological condition. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • unspecified dementia (F03.-)

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • 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 first

The underlying condition must be sequenced before this code.

  • the underlying physiological condition

Includes

Conditions this code covers.

  • 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

Other codes that can never be billed with F06

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • F01.AVascular dementia, mild
  • F02Dementia in other diseases classified elsewhere
  • F02.ADementia in other diseases classified elsewhere, mild
  • F03.AUnspecified dementia, mild
  • F09Unspecified mental disorder due to known physiological condition
  • G31.84Mild cognitive impairment of uncertain or unknown etiology
  • R41.3Other amnesia

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead F06

7 child codes. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.