Excludes1 conflict
Not coded here — these two are mutually exclusive.
“fall due to person on foot colliding with another person on foot (W03)”
An Excludes1 note means the two conditions cannot occur together, so the pair should not be reported for the same encounter. The sole exception is when the conditions are documented as unrelated to each other.
Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a