W40.1

W40.1: Explosion of explosive gases

Non-billable headerICD-10-CM

W40.1 is a non-billable header ICD-10-CM code for explosion of explosive gases. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

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

A: initial encounter
D: subsequent encounter
S: sequela

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

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

Excludes1 inherited from the categories above W40.1

A category’s note binds every code beneath it.

Written on W40: Explosion of other materials

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)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

Explosion›acetylene
Explosion›anesthetic gas in operating room
Explosion›butane
Explosion›coal gas
Explosion›fire-damp
Explosion›gas(coal) (explosive)
Explosion›gasoline not in moving motor vehicle(fumes) (tank)
Explosion›methane
Explosion›mine
Explosion›propane
Ignition›anesthetic gas in operating room
Explosion›explosive›gas