W40.8XXA

W40.8XXA: Explosion of other specified explosive materials, initial encounter

Billable / specific codeICD-10-CMPOA exempt

W40.8XXA is a billable, specific ICD-10-CM code for explosion of other specified explosive materials, initial encounter. It is valid for submission on a claim.

Check W40.8XXA with the rest of the claim: free scrubber

7th character "A": initial encounter

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

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

explosion involving legal intervention (Y35.1-)
explosion involving military or war operations (Y36.0-, Y36.2-)

Inclusion terms

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

Explosion in dump NOS
Explosion in factory NOS
Explosion in grain store
Explosion in munitions

Excludes1 inherited from the categories above W40.8XXA

A category’s note binds every code beneath it.

Written on W40.8: Explosion of other specified explosive materials

explosion involving legal intervention (Y35.1-)
explosion involving military or war operations (Y36.0-, Y36.2-)

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.

Code history

Unchanged in every release from FY2024 to FY2027.