V64.4Person boarding or alighting a heavy transport vehicle injured in collision with heavy transport vehicle or bus while boarding or alighting

V64.4 is the ICD-10-CM diagnosis code for person boarding or alighting a heavy transport vehicle injured in collision with heavy transport vehicle or bus while boarding or alighting. It belongs to category V64 (occupant of heavy transport vehicle injured in collision with heavy transport vehicle or bus), block V60-V69 (occupant of heavy transport vehicle injured in transport accident) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within V64 (occupant of heavy transport vehicle injured in collision with heavy transport vehicle or bus), V64.4 is specifically for person boarding or alighting a heavy transport vehicle injured in collision with heavy transport vehicle or bus while boarding or alighting. Related codes cover driver of heavy transport vehicle injured in collision with heavy transport vehicle or bus in nontraffic accident (V64.0), passenger in heavy transport vehicle injured in collision with heavy transport vehicle or bus in nontraffic accident (V64.1), person on outside of heavy transport vehicle injured in collision with heavy transport vehicle or bus in nontraffic accident (V64.2), unspecified occupant of heavy transport vehicle injured in collision with heavy transport vehicle or bus in nontraffic accident (V64.3), driver of heavy transport vehicle injured in collision with heavy transport vehicle or bus in traffic accident (V64.5), passenger in heavy transport vehicle injured in collision with heavy transport vehicle or bus in traffic accident (V64.6), person on outside of heavy transport vehicle injured in collision with heavy transport vehicle or bus in traffic accident (V64.7) and unspecified occupant of heavy transport vehicle injured in collision with heavy transport vehicle or bus in traffic accident (V64.9).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.