W28 vs W29.3
W28 (Contact with powered lawn mower) compared with W29.3 (Contact with powered garden and outdoor hand tools and 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. W29.3 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 | W29.3Contact with powered garden and outdoor hand tools and 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 powered garden and outdoor hand tools and machinery is a non-billable ICD-10-CM category code (W29.3). |
| 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 W29 |
| Includes | Powered lawn mower (commercial) (residential) | Contact with chainsaw Contact with edger Contact with garden cultivator (tiller) Contact with hedge trimmer |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources