W03 vs W51
W03 (Other fall on same level due to collision with another person) compared with W51 (Accidental striking against or bumped into by another person), 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. W03 carries an Excludes1 note covering W51: “collision with another person without fall (W51)”
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. W51 carries an Excludes1 note covering W03: “fall due to collision with another person (W03)”
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
| W03Other fall on same level due to collision with another person | W51Accidental striking against or bumped into by another person | |
|---|---|---|
| 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 | Other fall on same level due to collision with another person is a non-billable ICD-10-CM category code (W03). | Accidental striking against or bumped into by another person is a non-billable ICD-10-CM category code (W51). |
| 7th character | The appropriate 7th character is to be added to code W03 | The appropriate 7th character is to be added to code W51 |
| Includes | Fall due to non-transport collision with other person | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources