Is Y36.3 a billable ICD-10-CM code?

No. Y36.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does Y36.3 sit in the tabular list?

External causes of morbidity (V00-Y99), in the block Legal intervention, operations of war, military operations, and terrorism (Y35-Y38).

What cannot be coded together with Y36.3?

Y36.3 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

Y36.3

Y36.3 — War operations involving fires, conflagrations and hot substances

Non-billable headerICD-10-CM

Y36.3 is a non-billable header ICD-10-CM code for war 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 Y36

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.

war operations involving fires and conflagrations aboard military aircraft (Y36.1-)
war operations involving fires and conflagrations aboard military watercraft (Y36.0-)
war operations involving fires and conflagrations caused indirectly by conventional weapons (Y36.2-)
war 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.

War operations involving smoke, fumes, and heat from fires, conflagrations and hot substances

Other codes that can never be billed with Y36.3

These codes carry an Excludes1 note pointing at Y36.3. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Y36.3 alone.

Y36.43War operations involving other firearms discharge
Y36.7War operations involving chemical weapons and other forms of unconventional warfare
Y37.7Military operations involving chemical weapons and other forms of unconventional warfare

Risk adjustment

Y36.3 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead Y36.3

5 child codes. Green means billable.

Related codes at this level

Codes that share Y36. If Y36.3 is not quite right, the correct code is usually one of these.

Questions about Y36.3

Is Y36.3 a billable ICD-10-CM code?: No. Y36.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Y36.3 sit in the tabular list?: External causes of morbidity (V00-Y99), in the block Legal intervention, operations of war, military operations, and terrorism (Y35-Y38).
What cannot be coded together with Y36.3?: Y36.3 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.