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F04 ICD-10-CA code: Organic amnesic syndrome, not induced by alcohol and other psychoactive substances

F04 is the ICD-10-CA code for “Organic amnesic syndrome, not induced by alcohol and other psychoactive substances” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

F04

Organic amnesic syndrome, not induced by alcohol and other psychoactive substances

Short description: Orgnc amnesic syndr not dt alco & psyact

ICD-10-CA · Canada

Index terms

Entries in CIHI’s alphabetical index that lead to F04. Searching the index by the condition the note names is how coders reach this code.

  • Syndrome, organic amnesic (not alcohol or drug induced)
  • Korsakov's disease, psychosis or syndrome (alcoholic), nonalcoholic
  • Disorder (of), amnesic, amnestic, due to (secondary to) general medical condition

Notes for F04

As CIHI prints them, with any note F04 takes from the headings above it.

Includes

  • Korsakov's psychosis or syndrome, nonalcoholic
  • Disorders of psychological developmentFrom Chapter 5: Mental and behavioural disorders (F00-F99)

Use additional code

Add a code for this detail when the note documents it.

Excludes

Conditions classified elsewhere.

  • Amnesia:• NOS (R41.3)• anterograde (R41.1)• dissociative (F44.0)• retrograde (R41.2)Korsakov's syndrome:• alcohol-induced or unspecified (F10.6)• induced by other psychoactive substances (F11-F19 with common fourth character .6)
  • Symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)From Chapter 5: Mental and behavioural disorders (F00-F99)

Note

  • A syndrome of prominent impairment of recent and remote memory while immediate recall is preserved, with reduced ability to learn new material and disorientation in time. Confabulation may be a marked feature, but perception and other cognitive functions, including the intellect, are usually intact. The prognosis depends on the course of the underlying lesion.
  • 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.Dementia (F00-F03) is a syndrome due to disease of the brain, usually of a chronic or progressive nature, in which there is disturbance of multiple higher cortical functions, including memory, thinking, orientation, comprehension, calculation, learning capacity, language, and judgement. Consciousness is not clouded. The impairments of cognitive function are commonly accompanied, and occasionally preceded, by deterioration in emotional control, social behaviour, or motivation. This syndrome occurs in Alzheimer's disease, in cerebrovascular disease, and in other conditions primarily or secondarily affecting the brain.From F00-F09 Organic, including symptomatic, mental disorders

Where F04 sits

  1. 1ChapterChapter 5: Mental and behavioural disorders (F00-F99)
  2. 2Block F00-F09Organic, including symptomatic, mental disorders
  3. 3Valid code F04Organic amnesic syndrome, not induced by alcohol and other psychoactive substances

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See F04 in the CIHI source

Frequently asked questions

What does ICD-10-CA code F04 mean?

F04 is the ICD-10-CA code for “Organic amnesic syndrome, not induced by alcohol and other psychoactive substances” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is F04 in ICD-10-CA?

F04 sits under F00-F09 Organic, including symptomatic, mental disorders, within Chapter 5: Mental and behavioural disorders (F00-F99).

What coding notes apply to F04?

ICD-10-CA lists Note, Includes, Excludes, Use additional code notes for F04, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside F04

F00Dementia in Alzheimer's diseaseF01Vascular dementiaF02Dementia in other diseases classified elsewhereF03Unspecified dementiaF05Delirium, not induced by alcohol and other psychoactive substancesF06Other mental disorders due to brain damage and dysfunction and to physical diseaseF07Personality and behavioural disorders due to brain disease, damage and dysfunctionF09Unspecified organic or symptomatic mental disorder