Is Y37.7 a billable ICD-10-CM code?

No. Y37.7 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does Y37.7 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 Y37.7?

Y37.7 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

Y37.7

Y37.7 — Military operations involving chemical weapons and other forms of unconventional warfare

Non-billable headerICD-10-CM

Y37.7 is a non-billable header ICD-10-CM code for military operations involving chemical weapons and other forms of unconventional warfare. 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 incendiary devices (Y36.3-, Y36.5-)

Risk adjustment

Y37.7 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 Y37.7

1 child code. Green means billable.

Y37.7XMilitary operations involving chemical weapons and other forms of unconventional warfare

Related codes at this level

Codes that share Y37. If Y37.7 is not quite right, the correct code is usually one of these.

Questions about Y37.7

Is Y37.7 a billable ICD-10-CM code?: No. Y37.7 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Y37.7 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 Y37.7?: Y37.7 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.