W39Header code — not billable

Discharge of firework

Chapter
20. External causes of morbidity
Category
W39
Effective date
October 1, 2026

Related codes in category W39

W39.XXXADischarge of firework, initial encounterYesW39.XXXDDischarge of firework, subsequent encounterYesW39.XXXSDischarge of firework, sequelaYes

Frequently asked questions

What is ICD-10 code W39?

W39 is an ICD-10-CM diagnosis code for Discharge of firework.

Is W39 a billable code?

No. W39 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 W39 in?

W39 falls under Chapter 20: External causes of morbidity.

When did W39 become effective?

W39 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to W39?

W39 belongs to category W39, which includes 3 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.