ICD10
ICD-10 Code F06: Other mental disorders due to known physiological condition
Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Mental, Behavioral and Neurodevelopmental disorders (F01-F99).
When is it used?
- May be used when a clinician documents other mental disorders due to known physiological condition in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
5Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
block
F01-F09Mental disorders due to known physiological conditions
currentF01-F09
Official coding notes
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
Applicable to
- the underlying physiological condition
Excludes1 (do not code together)
- unspecified dementia (F03.-)
Excludes2 (may code together if documented)
- 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 physiological condition
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
PsychiatristClinical Psychologist
Related codes
F06.0Psychotic disorder with hallucinations due to known physiological conditioncodeF06.1Catatonic disorder due to known physiological conditioncodeF06.2Psychotic disorder with delusions due to known physiological conditioncodeF06.4Anxiety disorder due to known physiological conditioncodeF06.8Other specified mental disorders due to known physiological conditioncode
Sibling codes
F01Vascular dementiaF02Dementia in other diseases classified elsewhereF03Unspecified dementiaF04Amnestic disorder due to known physiological conditionbillableF05Delirium due to known physiological conditionbillableF07Personality and behavioral disorders due to known physiological conditionF09Unspecified mental disorder due to known physiological conditionbillable
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
F06
Replacement codes
F06.0 — Psychotic disorder with hallucinations due to known physiological conditionF06.1 — Catatonic disorder due to known physiological conditionF06.2 — Psychotic disorder with delusions due to known physiological conditionF06.4 — Anxiety disorder due to known physiological conditionF06.8 — Other specified mental disorders due to known physiological condition
Common synonyms
Other mental disorders due to known physiological condition
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.