F06.8 is the authoritative medical code for Other specified mental disorders due to known physiological condition. This classification is used in medical billing and clinical recording to specify the clinical criteria for other specified mental disorders due to known physiological condition (ICD-10-CM F06.8), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Other specified mental disorders due to known physiological condition is a billable ICD-10-CM diagnosis code F06.8. 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. Inclusion terms: Epileptic psychosis NOS; Obsessive-compulsive and related disorder due to a known physiological condition; Organic dissociative disorder; Organic emotionally labile asthenic disorder. Excludes1 (not coded here): unspecified dementia F03.-. Excludes2 (not included here): 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.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for F06.8 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under 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
Inclusion Terms
Alternative terms the tabular list files under this code.
- Epileptic psychosis NOS
- Obsessive-compulsive and related disorder due to a known physiological condition
- Organic dissociative disorder
- Organic emotionally labile asthenic disorder
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- unspecified dementia F03.-
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- 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
Underlying conditions that must be sequenced before this code.
- the underlying physiological condition
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with F06.8?
Per Excludes1 instructions, F06.8 must not be reported with: unspecified dementia (F03.-).
Can F06.8 be reported alongside related conditions?
Per Excludes2 instructions, F06.8 and the following may both be reported when both are present: 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).
Does F06.8 need to be sequenced after another code?
Yes. Code first: the underlying physiological condition.
What conditions are included under F06.8?
Other specified mental disorders due to known physiological condition includes: Epileptic psychosis NOS; Obsessive-compulsive and related disorder due to a known physiological condition; Organic dissociative disorder; Organic emotionally labile [asthenic] disorder.
Codes in This Family (14)
Official ICD-10-CM classifications in the same code family as F06.8, with their registry titles.
- F06 — Other mental disorders due to known physiological condition
- 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
- F06.30 — Mood disorder due to known physiological condition, unspecified
- F06.31 — Mood disorder due to known physiological condition with depressive features
- F06.32 — Mood disorder due to known physiological condition with major depressive-like episode
- F06.33 — Mood disorder due to known physiological condition with manic features
- F06.34 — Mood disorder due to known physiological condition with mixed features
- F06.4 — Anxiety disorder due to known physiological condition
- F06.7 — Mild neurocognitive disorder due to known physiological condition
- F06.70 — Mild neurocognitive disorder due to known physiological condition without behavioral disturbance
- F06.71 — Mild neurocognitive disorder due to known physiological condition with behavioral disturbance
Indexed Clinical Terms (30)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Deterioration, epileptic
- Disorder (of), dissociative, due togeneral medical condition (secondary to)
- Disorder (of), dissociative, organic
- Disorder (of), obsessive-compulsive, and related disorder due to a known physiological condition
- Disorder (of), organic, dissociative
- Disorder (of), organic, emotionally labile (asthenic)
- Disturbance (s), memory, mild, following organic brain damage
- Epilepsy, epileptic, epilepsia (attack) (cerebral) (convulsion) (fit) (seizure), deterioration (mental)
- Episode, psychotic, organic
- Lack of, memory, mild, following organic brain damage
- Loss (of), memory, mild, following organic brain damage
- Memory disturbance, lack or loss, mild, following organic brain damage
- Psychosis, psychotic, due to or associated with, epilepsy
- Psychosis, psychotic, due to or associated with, Huntington's chorea
- Psychosis, psychotic, due to or associated with, ischemia, cerebrovascular (generalized)
- Psychosis, psychotic, due to or associated with, multiple sclerosis
- Psychosis, psychotic, due to or associated with, physical disease
- Psychosis, psychotic, epileptic
- Psychosis, psychotic, episode, due to or associated with physical condition
- Psychosis, psychotic, organic, due to or associated with, disease, endocrine or metabolic
- Psychosis, psychotic, organic, due to or associated with, infection, brain (intracranial)
- Psychosis, psychotic, organic, due to or associated with, trauma, brain (birth) (from electric current) (surgical)
- Psychosis, psychotic, organic, infective
- Psychosis, psychotic, organic, post-traumatic
- Psychotic episode due to or associated with physical condition
- State (of), affective and paranoid, mixed, organic psychotic
- State (of), psychotic, organic, mixed paranoid and affective
- State (of), psychotic, organic, transient NEC
- State (of), transient organic psychotic NEC
- Syndrome, brain (nonpsychotic), psychotic
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code F02.8
Dementia in other diseases classified elsewhere, unspecified severity
ICD Code F07.8
Other personality and behavioral disorders due to known physiological condition