W20.1 vs X02.2
W20.1 (Struck by object due to collapse of building) compared with X02.2 (Injury due to collapse of burning building or structure in controlled fire), 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. W20.1 carries an Excludes1 note covering X02.2: “struck by object due to collapse of burning building (X00.2, X02.2)”
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. X02.2 carries an Excludes1 note covering W20.1: “injury due to collapse of building not on fire (W20.1)”
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
| W20.1Struck by object due to collapse of building | X02.2Injury due to collapse of burning building or structure in controlled fire | |
|---|---|---|
| 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 | Struck by object due to collapse of building is a non-billable ICD-10-CM category code (W20.1). | Injury due to collapse of burning building or structure in controlled fire is a non-billable ICD-10-CM category code (X02.2). |
| 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 X02 |
| Includes | — | exposure to fire in fireplace exposure to fire in stove |
| 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