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F12.6 ICD-10-CA subcategory: Mental and behavioural disorders due to use of cannabinoids, amnesic syndrome

F12.6 isn’t a code on its own. Choose one of the 2 codes beneath it, the one the documentation supports.

Official description

F12.6

Mental and behavioural disorders due to use of cannabinoids, amnesic syndrome

ICD-10-CA · Canada · Also written F126

Codes in F12.6

F12.6 isn’t a code on its own. Open the code that matches what the note documents.

F12.60Mental and behavioural disorders due to use of cannabinoids, amnesic syndromeF12.61Mental and behavioural disorders due to use of synthetic cannabinoids, amnesic syndrome

Notes for F12.6

As CIHI prints them, with any note F12.6 takes from the headings above it.

Includes

  • Amnestic disorder, alcohol- or drug-inducedKorsakov's psychosis or syndrome, alcohol- or other psychoactive substance-induced or unspecified
  • 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.

  • Use additional code, (E51.2 † G32.8*) when associated with Wernicke's disease or syndrome.

Excludes

Conditions classified elsewhere.

Note

  • A syndrome associated with chronic prominent impairment of recent and remote memory. Immediate recall is usually preserved and recent memory is characteristically more disturbed than remote memory. Disturbances of time sense and ordering of events are usually evident, as are difficulties in learning new material. Confabulation may be marked but is not invariably present. Other cognitive functions are usually relatively well preserved and amnesic defects are out of proportion to other disturbances.
  • This block contains a wide variety of disorders that differ in severity and clinical form but that are all attributable to the use of one or more psychoactive substances, which may or may not have been medically prescribed. The third character of the code identifies the substance involved, and the fourth character specifies the clinical state. The codes should be used, as required, for each substance specified, but it should be noted that not all fourth-character codes are applicable to all substances.Identification of the psychoactive substance should be based on as many sources of information as possible. These include self-report data, analysis of blood and other body fluids, characteristic physical and psychological symptoms, clinical signs and behaviour, and other evidence such as a drug being in the patient's possession or reports from informed third parties. Many drug users take more than one type of psychoactive substance. The main diagnosis should be classified, whenever possible, according to the substance or class of substances that has caused or contributed most to the presenting clinical syndrome. Other diagnoses should be coded when other psychoactive substances have been taken in intoxicating amounts (common fourth character .0) or to the extent of causing harm (common fourth character .1), dependence (common fourth character .2) or other disorders (common fourth character .3-.9).Only in cases in which patterns of psychoactive substance-taking are chaotic and indiscriminate, or in which the contributions of different psychoactive substances are inextricably mixed, should the diagnosis of disorders resulting from multiple drug use (F19.-) be used.From F10-F19 Mental and behavioural disorders due to psychoactive substance use

Where F12.6 sits

  1. 1ChapterChapter 5: Mental and behavioural disorders (F00-F99)
  2. 2Block F10-F19Mental and behavioural disorders due to psychoactive substance use
  3. 3Category F12Mental and behavioural disorders due to use of cannabinoids
  4. 4Subcategory F12.6Mental and behavioural disorders due to use of cannabinoids, amnesic syndrome

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 F12.6 in the CIHI source

Frequently asked questions

Is F12.6 a valid ICD-10-CA code?

No. F12.6 (Mental and behavioural disorders due to use of cannabinoids, amnesic syndrome) is a subcategory heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 2 codes; record the one the documentation supports.

Where is F12.6 in ICD-10-CA?

F12.6 sits under F12 Mental and behavioural disorders due to use of cannabinoids, within F10-F19 Mental and behavioural disorders due to psychoactive substance use, within Chapter 5: Mental and behavioural disorders (F00-F99).

What coding notes apply to F12.6?

ICD-10-CA lists Note, Includes, Use additional code, Excludes notes for F12.6, 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 F12.6

F12.0Mental and behavioural disorders due to use of cannabinoids, acute intoxicationF12.1Mental and behavioural disorders due to use of cannabinoids, harmful useF12.2Mental and behavioural disorders due to use of cannabinoids, dependence syndromeF12.3Mental and behavioural disorders due to use of cannabinoids, withdrawal stateF12.4Mental and behavioural disorders due to use of cannabinoids, withdrawal state with deliriumF12.5Mental and behavioural disorders due to use of cannabinoids, psychotic disorderF12.7Mental and behavioural disorders due to use of cannabinoids, residual and late-onset psychotic disorderF12.8Mental and behavioural disorders due to use of cannabinoids, other mental and behavioural disordersF12.9Mental and behavioural disorders due to use of cannabinoids, unspecified mental and behavioural disorder