W28 vs W31.82
W28 (Contact with powered lawn mower) compared with W31.82 (Contact with other commercial machinery), 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. W31.82 carries an Excludes1 note covering W28: “contact with powered lawn mower (W28)”
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
| W28Contact with powered lawn mower | W31.82Contact with other commercial machinery | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | V00-Y99 — External Causes of Morbidity (V00-Y99) | V00-Y99 — External Causes of Morbidity (V00-Y99) |
| Definition | Contact with powered lawn mower is a non-billable ICD-10-CM category code (W28). | Contact with other commercial machinery is a non-billable ICD-10-CM category code (W31.82). |
| 7th character | The appropriate 7th character is to be added to code W28 | The appropriate 7th character is to be added to each code from category W31 |
| Includes | Powered lawn mower (commercial) (residential) | Contact with commercial electric fan Contact with commercial kitchen appliances Contact with commercial powered dryer (clothes) (powered) (spin) Contact with commercial washing-machine |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources