ICD-10-CM 2027 diagnosis code
W34.018DAccidental discharge of other gas, air or spring-operated gun, subsequent encounter
W34.018D is a valid, billable ICD-10-CM code for accidental discharge of other gas, air or spring-operated gun, subsequent encounter. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Accidental discharge of gas, air or sprng-op gun, subs
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About W34.018D
W34.018D is the ICD-10-CM diagnosis code for accidental discharge of other gas, air or spring-operated gun, subsequent encounter. It belongs to category W34 (accidental discharge and malfunction from other and unspecified firearms and guns), block W20-W49 (exposure to inanimate mechanical forces) and chapter 20 (external causes of morbidity). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
The 7th character "D" means subsequent encounter: use it for encounters after active treatment, while the patient is healing or recovering.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as E922.8 (accident caused by other specified firearm missile).
7th character
Dsubsequent encounter
Other encounter types for W34.018:
Notes that apply from higher levels
Instructions written at a parent level also apply to W34.018D.
Broader instructions also apply from W20-W49 Exposure to inanimate mechanical forces and Chapter 20: External causes of morbidity.
ICD-9-CM equivalent
Converter →- E922.8Accident caused by other specified firearm missileapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about W34.018D
Is W34.018D billable?
- Yes. W34.018D is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
What does the "D" at the end of W34.018D mean?
- It is the 7th character for subsequent encounter. Per the official guidelines, use it for encounters after active treatment, while the patient is healing or recovering.
Can W34.018D be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict W34.018D as a principal diagnosis.
Is W34.018D a CC or MCC?
- No. W34.018D is neither a CC nor an MCC under MS-DRG v44.0.
What is the ICD-9 code for W34.018D?
- The CMS General Equivalence Mappings map W34.018D to ICD-9-CM E922.8.