W20 vs W23.1XXS
W20 (Struck by thrown, projected or falling object) compared with W23.1XXS (Caught, crushed, jammed, or pinched between stationary objects, sequela), 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. W23.1XXS carries an Excludes1 note covering W20: “injury caused by struck by thrown, projected or falling object (W20.-)”
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
| W20Struck by thrown, projected or falling object | W23.1XXSCaught, crushed, jammed, or pinched between stationary objects, sequela | |
|---|---|---|
| Billing status | Non-billable header Report instead: W20.0XXA, W20.0XXD, W20.0XXS, W20.1XXA, W20.1XXD | Billable |
| Classification | V00-Y99 — External Causes of Morbidity (V00-Y99) | V00-Y99 — External Causes of Morbidity (V00-Y99) |
| Definition | Struck by thrown, projected or falling object is a non-billable ICD-10-CM category code (W20). | Caught, crushed, jammed, or pinched between stationary objects, sequela is a billable ICD-10-CM diagnosis code (W23.1S). |
| 7th character | The appropriate 7th character is to be added to each code from category W20 | The appropriate 7th character is to be added to each code from category W23 |
| Code first | any associated: cataclysm (X34-X39) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources