Y37.33Header code — not billable

Military operations involving flamethrower

Chapter
20. External causes of morbidity
Category
Y37
Effective date
October 1, 2026

Related codes in category Y37

Frequently asked questions

What is ICD-10 code Y37.33?

Y37.33 is an ICD-10-CM diagnosis code for Military operations involving flamethrower.

Is Y37.33 a billable code?

No. Y37.33 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is Y37.33 in?

Y37.33 falls under Chapter 20: External causes of morbidity.

When did Y37.33 become effective?

Y37.33 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to Y37.33?

Y37.33 belongs to category Y37, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.