Question 1

Is W39 a billable ICD-10 code?

Accepted Answer

Yes, W39 is a valid billable ICD-10-CM code for discharge of firework. It can be used for medical billing and reimbursement purposes.

Question 2

What does ICD-10 code W39 mean?

Accepted Answer

ICD-10-CM code W39 represents Discharge of firework. This code is part of the International Classification of Diseases, 10th Revision, Clinical Modification used for medical coding and billing in the United States.

Question 3

When was ICD-10 code W39 introduced?

Accepted Answer

Code W39 has been part of ICD-10-CM since 2016, when the coding system was mandated for use in the United States. This code was included in the original US implementation.

Question 4

What is the parent category for ICD-10 code W39?

Accepted Answer

The parent category for W39 is section:W20-W49 (Exposure to inanimate mechanical forces (W20-W49)). This hierarchical classification helps organize related diagnoses for more accurate coding.

Question 5

Does W39 require a 7th character extension?

Accepted Answer

Yes, W39 requires a 7th character to specify the encounter type. Available extensions include: A (initial encounter), D (subsequent encounter), S (sequela). Use "X" as a placeholder to fill empty positions before the 7th character (e.g., W39XXA for initial encounter). The extension indicates whether this is an initial visit, follow-up, or treatment for a late effect.

W39.XXXS2026

Excludes14Not coded together

Notes1Additional information

Also Known As3Alternative terms

7th Character Extensions3Encounter type specifiers

Is W39 a billable ICD-10 code?

What does ICD-10 code W39 mean?

When was ICD-10 code W39 introduced?

What is the parent category for ICD-10 code W39?

Does W39 require a 7th character extension?