W32 vs W34.110
W32 (Accidental handgun discharge and malfunction) compared with W34.110 (Accidental malfunction of airgun), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. W32 carries an Excludes1 note covering W34.110: “accidental airgun discharge and malfunction (W34.010, W34.110)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. W32 carries an Excludes1 note covering W34.110: “accidental BB gun discharge and malfunction (W34.010, W34.110)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. W32 carries an Excludes1 note covering W34.110: “accidental pellet gun discharge and malfunction (W34.010, W34.110)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| W32Accidental handgun discharge and malfunction | W34.110Accidental malfunction of airgun | |
|---|---|---|
| Billing status | Non-billable header Report instead: W32.0XXA, W32.0XXD, W32.0XXS, W32.1XXA, W32.1XXD | Non-billable header |
| Classification | V00-Y99 — External Causes of Morbidity (V00-Y99) | V00-Y99 — External Causes of Morbidity (V00-Y99) |
| Definition | Accidental handgun discharge and malfunction is a non-billable ICD-10-CM category code (W32). | Accidental malfunction of airgun is a non-billable ICD-10-CM category code (W34.110). |
| 7th character | The appropriate 7th character is to be added to each code from category W32 | The appropriate 7th character is to be added to each code from category W34 |
| Includes | accidental discharge and malfunction of gun for single hand use accidental discharge and malfunction of pistol accidental discharge and malfunction of revolver Handgun discharge and malfunction NOS | Accidental malfunction of BB gun Accidental malfunction of pellet gun |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources