W40.1 Explosion of explosive gases

Non-billable ICD-10-CM code.

Applicable to

• Explosion of acetylene
• Explosion of butane
• Explosion of coal gas
• Explosion in mine NOS
• Explosion of explosive gas
• Explosion of fire damp
• Explosion of gasoline fumes
• Explosion of methane
• Explosion of propane

Applies from W40 Explosion of other materials

Excludes1 (never code together)

• assault by explosive material (X96)
• explosion involving legal intervention (Y35.1-)
• explosion involving military or war operations (Y36.0-, Y36.2-)
• intentional self-harm by explosive material (X75)

7th character note

• The appropriate 7th character is to be added to each code from category W40

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Code annotations containing back-references to W40.1

Back-references to W40

• Type 1 Excludes: W20 Struck by thrown, projected or falling object ("object set in motion by explosion (W35-W40)")
• Code First: W25 Contact with sharp glass ("injury due to flying glass from explosion or firearm discharge (W32-W40)")

Diagnosis Index entries for W40.1

• Explosion (accidental) (of) (with secondary fire) › acetylene
• Explosion (accidental) (of) (with secondary fire) › anesthetic gas in operating room
• Explosion (accidental) (of) (with secondary fire) › butane
• Explosion (accidental) (of) (with secondary fire) › coal gas
• Explosion (accidental) (of) (with secondary fire) › explosive (material) › gas
• Explosion (accidental) (of) (with secondary fire) › fire-damp
• Explosion (accidental) (of) (with secondary fire) › gas (coal) (explosive)
• Explosion (accidental) (of) (with secondary fire) › gasoline (fumes) (tank) not in moving motor vehicle
• Explosion (accidental) (of) (with secondary fire) › in, on › mine (of explosive gases) NEC
• Explosion (accidental) (of) (with secondary fire) › methane
• Explosion (accidental) (of) (with secondary fire) › mine
• Explosion (accidental) (of) (with secondary fire) › propane
• Ignition (accidental) › anesthetic gas in operating room
• Ignition (accidental) › ether › in operating room

Nearby codes

• W40 Explosion of other materials
• W40.0 Explosion of blasting material
• W40.0XXA Explosion of blasting material, initial encounter
• W40.0XXD Explosion of blasting material, subsequent encounter
• W40.0XXS Explosion of blasting material, sequela
• W40.1 Explosion of explosive gases (this code)
• W40.1XXA Explosion of explosive gases, initial encounter
• W40.1XXD Explosion of explosive gases, subsequent encounter
• W40.1XXS Explosion of explosive gases, sequela
• W40.8 Explosion of other specified explosive materials
• W40.8XXA Explosion of other specified explosive materials, initial encounter