DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

W39 Discharge of firework

  • Header · not billable
  • Codes take a 7th character

W39 is not billable. The category heads 3 billable codes in FY2027. Its codes take a 7th character, so none is complete with fewer than 7 characters.

Where it sits

  1. Chapter 20 External causes of morbidity (V00-Y99)
  2. W20-W49 Exposure to inanimate mechanical forces (W20-W49)
  3. W39 Discharge of firework
Billable codes
3
Subdivisions
0
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
0

Codes in W39

  1. W39.XXXA
    Discharge of firework, initial encounter
    BillableExempt
  2. W39.XXXD
    Discharge of firework, subsequent encounter
    BillableExempt
  3. W39.XXXS
    Discharge of firework, sequela
    BillableExempt

Sources of each column. Rows marked +7th need a 7th character: pick one to build the full code; its code card has its own flags.

Instructions

Notes that also apply

Block W20-W49 instructions (Excludes1 4): printed on the block page.

Chapter 20 instructions (Notes 1): printed on the chapter 20 page.

7th characters

7th characters for W39 defined here

The appropriate 7th character is to be added to code W39

7th characters for W39
7thMeaning (NCHS)
Ainitial encounter
Dsubsequent encounter
Ssequela

A code that takes a 7th character is invalid without it; the placeholder X fills a code shorter than 6 characters (Official Guidelines I.A.5). How 7th characters work.

Hierarchy