Y37.42 — Military operations involving firearms pellets
Y37.42 is a non-billable header ICD-10-CM code for military operations involving firearms pellets. 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 inherited from the categories above Y37.42
These are not written on Y37.42, but they bind it: a note on a category applies to every code beneath it. Billing Y37.42 with anything listed here is a denial.
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 Y37.42
These codes carry an Excludes1 note pointing at Y37.42. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Y37.42 alone.
Risk adjustment
Y37.42 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 history
Y37.42 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead Y37.42
2 child codes. Green means billable.
Related codes at this level
Codes that share Y37.4. If Y37.42 is not quite right, the correct code is usually one of these.
- Y37.41Military operations involving rubber bullets
- Y37.43Military operations involving other firearms discharge
- Y37.44Military operations involving unarmed hand to hand combat
- Y37.45Military operations involving combat using blunt or piercing object
- Y37.46Military operations involving intentional restriction of air and airway
- Y37.47Military operations involving unintentional restriction of air and airway
- Y37.49Military operations involving other forms of conventional warfare
Questions about Y37.42
- Is Y37.42 a billable ICD-10-CM code?
- No. Y37.42 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does Y37.42 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 Y37.42?
- Y37.42 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above Y37.42 (Y37) and apply to it just the same.