W27 vs W29
W27 (Contact with nonpowered hand tool) compared with W29 (Contact with other powered hand tools and household 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 carries an Excludes1 note covering W27: “contact with nonpowered hand tool (W27.-)”
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
| W27Contact with nonpowered hand tool | W29Contact with other powered hand tools and household machinery | |
|---|---|---|
| Billing status | Non-billable header Report instead: W27.0XXA, W27.0XXD, W27.0XXS, W27.1XXA, W27.1XXD | Non-billable header Report instead: W29.0XXA, W29.0XXD, W29.0XXS, W29.1XXA, W29.1XXD |
| Classification | V00-Y99 — External Causes of Morbidity (V00-Y99) | V00-Y99 — External Causes of Morbidity (V00-Y99) |
| Definition | Contact with nonpowered hand tool is a non-billable ICD-10-CM category code (W27). | Contact with other powered hand tools and household machinery is a non-billable ICD-10-CM category code (W29). |
| 7th character | The appropriate 7th character is to be added to each code from category W27 | The appropriate 7th character is to be added to each code from category W29 |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources