W18.31XS vs W18.41
W18.31XS (Fall on same level due to stepping on an object, sequela) compared with W18.41 (Slipping, tripping and stumbling without falling due to stepping on object), 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. W18.31XS carries an Excludes1 note covering W18.41: “slipping, tripping and stumbling without fall due to stepping on animal (W18.41)”
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. W18.41 carries an Excludes1 note covering W18.31XS: “slipping, tripping and stumbling with fall due to stepping on animal (W18.31)”
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
| W18.31XSFall on same level due to stepping on an object, sequela | W18.41Slipping, tripping and stumbling without falling due to stepping on object | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | V00-Y99 — External Causes of Morbidity (V00-Y99) | V00-Y99 — External Causes of Morbidity (V00-Y99) |
| Definition | Fall on same level due to stepping on an object, sequela is a billable ICD-10-CM diagnosis code (W18.31S). | Slipping, tripping and stumbling without falling due to stepping on object is a non-billable ICD-10-CM category code (W18.41). |
| 7th character | The appropriate 7th character is to be added to each code from category W18 | The appropriate 7th character is to be added to each code from category W18 |
| Includes | Fall on same level due to stepping on an animal | Slipping, tripping and stumbling without falling due to stepping on animal |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources