V99 vs W10
V99 (Unspecified transport accident) compared with W10 (Fall on and from stairs and steps), 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. W10 carries an Excludes1 note covering V99: “fall (in) (from) transport vehicle (V01-V99)”
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
| V99Unspecified transport accident | W10Fall on and from stairs and steps | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header Report instead: W10.0XXA, W10.0XXD, W10.0XXS, W10.1XXA, W10.1XXD |
| Classification | V00-Y99 — External Causes of Morbidity (V00-Y99) | V00-Y99 — External Causes of Morbidity (V00-Y99) |
| Definition | Unspecified transport accident is a non-billable ICD-10-CM category code (V99). | Fall on and from stairs and steps is a non-billable ICD-10-CM category code (W10). |
| 7th character | The appropriate 7th character is to be added to code V99 | The appropriate 7th character is to be added to each code from category W10 |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources