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W31 ICD-10-CA code: Contact with other and unspecified machinery

W31 is the ICD-10-CA code for “Contact with other and unspecified machinery” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

W31

Contact with other and unspecified machinery

Short description: Contact w oth and unspecified machinery

ICD-10-CA · Canada

Index terms

Entries in CIHI’s alphabetical index that lead to W31. Searching the index by the condition the note names is how coders reach this code.

  • Collapse, machinery
  • Pinned under machine(ry)
  • Struck (accidentally) by, machine
  • Overturning (accidental), machinery
  • Accident (to), machine, machinery NEC
  • Object, set in motion by, machine(ry)
  • Contact (accidental), with, cotton gin
  • Contact (accidental), with, snowblower
  • Contact (accidental), with, gas turbine
  • Run over (accidentally) (by), machinery
  • Contact (accidental), with, circular saw
  • Contact (accidental), with, under cutter
  • Contact (accidental), with, steam, engine
  • Contact (accidental), with, overhead plane
  • Contact (accidental), with, roller coaster
  • Caught, by, in, machinery (moving parts of)
  • Contact (accidental), with, dairy equipment
  • Contact (accidental), with, weaving machine
  • Thrown (accidentally), from, off, machinery
  • Contact (accidental), with, printing machine
  • Contact (accidental), with, spinning machine
  • Crushed (accidentally), by, in, machinery NEC
  • Contact (accidental), with, sander, industrial
  • Object, falling from, in, on, hitting, machinery
  • Accident (to), caused by, due to, electric, motor
  • Contact (accidental), with, band saw (industrial)
  • Contact (accidental), with, sawing machine, metal
  • Contact (accidental), with, bench saw (industrial)
  • Contact (accidental), with, machine, machinery NEC
  • Contact (accidental), with, saw, band (industrial)
  • Contact (accidental), with, radial saw (industrial)
  • Contact (accidental), with, saw, bench (industrial)
  • Contact (accidental), with, powered, saw (industrial)
  • Drowning (accidental), due to, accident, machinery NEC
  • Fall, falling (accidental), in, on, machine, machinery
  • Accident (to), caused by, due to, machine, machinery NEC
  • Contact (accidental), with, turbine (gas) (water driven)
  • Contact (accidental), with, abrasive wheel (metalworking)
  • Fall, falling (accidental), from, off, machine, machinery
  • Contact (accidental), with, forging (metalworking) machine
  • Contact (accidental), with, machine, machinery NEC, mining
  • Contact (accidental), with, plane (metal) (wood), overhead
  • Fall, falling (accidental), into, moving part of machinery
  • Contact (accidental), with, machine, machinery NEC, molding
  • Contact (accidental), with, machine, machinery NEC, weaving
  • Contact (accidental), with, machine, machinery NEC, printing
  • Contact (accidental), with, machine, machinery NEC, spinning
  • Contact (accidental), with, shovel, steam (in stationary use)
  • Contact (accidental), with, steam, shovel (in stationary use)
  • Contact (accidental), with, lathe (metalworking) (woodworking)
  • Contact (accidental), with, machine, machinery NEC, snowblower
  • Cut, cutting (any part of body) (accidental) (by), machine NEC
  • Contact (accidental), with, machine, machinery NEC, prime mover
  • Contact (accidental), with, meat, slicer (domestic), industrial
  • Contact (accidental), with, shears (hand), powered (industrial)
  • Contact (accidental), with, earth, drilling machine (industrial)
  • Contact (accidental), with, machine, machinery NEC, recreational
  • Contact (accidental), with, meat, grinder (domestic), industrial
  • Contact (accidental), with, machine, machinery NEC, specified NEC
  • Contact (accidental), with, drill (powered), earth (land) (seabed)
  • Contact (accidental), with, excavating machine (in stationary use)
  • Contact (accidental), with, machine, machinery NEC, earth drilling
  • Contact (accidental), with, machine, machinery NEC, milling, metal
  • Contact (accidental), with, machine, machinery NEC, power press, metal
  • Explosion (accidental) (in) (of) (on) (with secondary fire), machinery
  • Contact (accidental), with, earth, scraping machine (in stationary use)
  • Contact (accidental), with, machine, machinery NEC, rolling mill, metal
  • Caught, between, objects (moving) (stationary and moving), and machinery
  • Contact (accidental), with, bore, earth drilling or mining (land) (seabed)
  • Contact (accidental), with, machine, machinery NEC, metalworking (industrial)
  • Contact (accidental), with, machine, machinery NEC, drilling, metal (industrial)
  • Contact (accidental), with, machine, machinery NEC, excavating (in stationary use)
  • Struck (accidentally) by, object NEC, falling, from, in, on, machine (in operation)
  • Contact (accidental), with, machine, machinery NEC, woodworking or forming (industrial)
  • Contact (accidental), with, machine, machinery NEC, earthmoving or scraping (in stationary use)
  • Contact (accidental), with, vehicle, off road use (transport), in stationary use or maintenance
  • Suffocation (accidental) (by external means) (by pressure) (mechanical), due to, by, machine(ry)
  • Contact (accidental), with, vehicle, industrial use (transport), in stationary use or maintenance
  • Contact (accidental), with, vehicle, special construction use (transport), in stationary use or maintenance
  • Exposure (to), fire (accidental) (with exposure to smoke or fumes or causing burns, or secondary explosion), in, of, on, starting in, machinery

Notes for W31

As CIHI prints them, with any note W31 takes from the headings above it.

Includes

  • Machine NOSrecreational machinery

Use additional code

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

Excludes

Conditions classified elsewhere.

  • Contact with machinery in transport under own power or being towed by a vehicle (V01-V99)exposure to electric current (W86.-)
  • Assault (X85-Y09)contact or collision with animals or persons (W50-W64)intentional self-harm (X60-X84)From W20-W49 Exposure to inanimate mechanical forces

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 W31 sits

  1. 1ChapterChapter 20: External causes of morbidity and mortality (V01-Y98)
  2. 2Block V01-X59Accidents
  3. 3Block W00-X59Other external causes of accidental injury
  4. 4Block W20-W49Exposure to inanimate mechanical forces
  5. 5Valid code W31Contact with other and unspecified machinery

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 W31 in the CIHI source

Frequently asked questions

What does ICD-10-CA code W31 mean?

W31 is the ICD-10-CA code for “Contact with other and unspecified machinery” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is W31 in ICD-10-CA?

W31 sits under W20-W49 Exposure to inanimate mechanical forces, within W00-X59 Other external causes of accidental injury, within V01-X59 Accidents, within Chapter 20: External causes of morbidity and mortality (V01-Y98).

What coding notes apply to W31?

ICD-10-CA lists Includes, Excludes, Use additional code, Note notes for W31, 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 W31

W20Struck by thrown, projected or falling object(s)W21Striking against or struck by sports equipmentW22Striking against or struck by other object(s)W23Caught, crushed, jammed or pinched in or between objectsW24Contact with lifting and transmission device(s), not elsewhere classifiedW25Contact with sharp glassW26Contact with other sharp object(s)W27Contact with nonpowered hand toolW28Contact with powered lawnmowerW29Contact with other powered hand tools and household machineryW30Contact with agricultural machineryW32Handgun dischargeW33Rifle, shotgun and larger firearm dischargeW34Discharge from other and unspecified firearmsW35Explosion and rupture of boilerW36Explosion and rupture of gas cylinderW37Explosion and rupture of pressurized tire, pipe or hoseW38Explosion and rupture of other specified pressurized devicesW39Discharge of fireworkW40Explosion of other materialsW41Exposure to high-pressure jetW42Exposure to noiseW43Exposure to vibrationW44Foreign body entering into or through eye or natural orificeW45Foreign body or object entering through skinW46Contact with hypodermic needleW49Exposure to other and unspecified inanimate mechanical forces