Y37.3: Military operations involving fires, conflagrations and hot substances
Y37.3 is a non-billable header ICD-10-CM code for military operations involving fires, conflagrations and hot substances. 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 Y37
- 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.
- military operations involving fires and conflagrations aboard military aircraft (Y37.1-)
- military operations involving fires and conflagrations aboard military watercraft (Y37.0-)
- military operations involving fires and conflagrations caused indirectly by conventional weapons (Y37.2-)
- military operations involving fires and thermal effects of nuclear weapons (Y36.53-)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Military operations involving smoke, fumes, and heat from fires, conflagrations and hot substances
Excludes1 inherited from the categories above Y37.3
A category’s note binds every code beneath it.
Written on Y37: Military operations
- military aircraft involved in aircraft accident with civilian aircraft (V97.81-)
- military vehicles involved in transport accident with civilian vehicle (V09.01, V09.21, V19.81, V29.818, V39.81, V49.81, V59.81, V69.81, V79.81)
- military watercraft involved in water transport accident with civilian watercraft (V94.81-)
- war operations (Y36.-)
Other codes that can never be billed with Y37.3
Their own Excludes1 notes name this code, so the conflict is not listed above.
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.
Code to one of these instead Y37.3
5 child codes. Green means billable.
- Y37.30Military operations involving unspecified fire, conflagration and hot substance
- Y37.31Military operations involving gasoline bomb
- Y37.32Military operations involving incendiary bullet
- Y37.33Military operations involving flamethrower
- Y37.39Military operations involving other fires, conflagrations and hot substances
Other codes under Y37
- Y37.0Military operations involving explosion of marine weapons
- Y37.1Military operations involving destruction of aircraft
- Y37.2Military operations involving other explosions and fragments
- Y37.4Military operations involving firearm discharge and other forms of conventional warfare
- Y37.5Military operations involving nuclear weapons
- Y37.6Military operations involving biological weapons
- Y37.7Military operations involving chemical weapons and other forms of unconventional warfare
- Y37.9Other and unspecified military operations
- Y37.ABlast overpressure in military operations