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X64 ICD-10-CA code: Intentional self-poisoning by and exposure to other and unspecified drugs, medicaments and biological substances

X64 is the ICD-10-CA code for “Intentional self-poisoning by and exposure to other and unspecified drugs, medicaments and biological substances” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

X64

Intentional self-poisoning by and exposure to other and unspecified drugs, medicaments and biological substances

Short description: Intent selfpois oth unsp dr med biol sub

ICD-10-CA · Canada

Notes for X64

As CIHI prints them, with any note X64 takes from the headings above it.

Includes

  • Agents primarily acting on smooth and skeletal muscles and the respiratory systemanaesthetics (general)(local)drugs affecting the:• cardiovascular system• gastrointestinal systemhormones and synthetic substitutessystemic and haematological agentssystemic antibiotics and other anti-infectivestherapeutic gasestopical preparationsvaccineswater-balance agents and drugs affecting mineral and uric acid metabolism
  • Purposely self-inflicted poisoning or injurysuicide (attempted)From X60-X84 Intentional self-harm

Use additional code

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

Note

  • This chapter, which in previous revisions of ICD constituted a supplementary classification, permits the classification of environmental events and circumstances as the cause of injury, poisoning and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used in addition to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter XIX, Injury, poisoning and certain other consequences of external causes (S00-T98). Causes of death should preferably be tabulated according to both Chapter XIX and Chapter XX, but if only one code is tabulated then the code from Chapter XX should be used in preference. Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter XX should be used to provide additional information for multiple-condition analysis only.From Chapter 20: External causes of morbidity and mortality (V01-Y98)

Where X64 sits

  1. 1ChapterChapter 20: External causes of morbidity and mortality (V01-Y98)
  2. 2Block X60-X84Intentional self-harm
  3. 3Valid code X64Intentional self-poisoning by and exposure to other and unspecified drugs, medicaments and biological 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 X64 in the CIHI source

Frequently asked questions

What does ICD-10-CA code X64 mean?

X64 is the ICD-10-CA code for “Intentional self-poisoning by and exposure to other and unspecified drugs, medicaments and biological substances” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is X64 in ICD-10-CA?

X64 sits under X60-X84 Intentional self-harm, within Chapter 20: External causes of morbidity and mortality (V01-Y98).

What coding notes apply to X64?

ICD-10-CA lists Includes, Use additional code, Note notes for X64, 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 X64

X60Intentional self-poisoning by and exposure to nonopioid analgesics, antipyretics and antirheumaticsX61Intentional self-poisoning by and exposure to antiepileptic, sedative-hypnotic, antiparkinsonism and psychotropic drugs, not elsewhere classifiedX62Intentional self-poisoning by and exposure to narcotics and psychodysleptics [hallucinogens], not elsewhere classifiedX63Intentional self-poisoning by and exposure to other drugs acting on the autonomic nervous systemX65Intentional self-poisoning by and exposure to alcoholX66Intentional self-poisoning by and exposure to organic solvents and halogenated hydrocarbons and their vapoursX67Intentional self-poisoning by and exposure to carbon monoxide and other gases and vapoursX68Intentional self-poisoning by and exposure to pesticidesX69Intentional self-poisoning by and exposure to other and unspecified chemicals and noxious substancesX70Intentional self-harm by hanging, strangulation and suffocationX71Intentional self-harm by drowning and submersionX72Intentional self-harm by handgun dischargeX73Intentional self-harm by rifle, shotgun and larger firearm dischargeX74Intentional self-harm by other and unspecified firearm dischargeX75Intentional self-harm by explosive materialX76Intentional self-harm by smoke, fire and flamesX77Intentional self-harm by steam, hot vapours and hot objectsX78Intentional self-harm by sharp objectX79Intentional self-harm by blunt objectX80Intentional self-harm by jumping from a high placeX81Intentional self-harm by jumping or lying before moving objectX82Intentional self-harm by crashing of motor vehicleX83Intentional self-harm by other specified meansX84Intentional self-harm by unspecified means