V66.4 – Person boarding or alighting a heavy transport vehicle injured in collision with other nonmotor vehicle
ICD-10-CM 2027 diagnosis code · Occupant of heavy transport vehicle injured in transport accident
- Code
V66.4(claims format:V664)- Description
- Person boarding or alighting a heavy transport vehicle injured in collision with other nonmotor vehicle
- Short description
- Prsn brd/alit hv veh injured in collision w nonmtr vehicle
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 20. External causes of morbidity (V00-Y99)
- Block
- V60-V69 Occupant of heavy transport vehicle injured in transport accident
- Parent codes
- V66
Billable codes under V66.4
V66.4 is a header code and cannot be used on claims. Choose the most specific code:
- V66.4XXA – Person boarding or alighting a heavy transport vehicle injured in collision with other nonmotor vehicle, initial encounterBillable
- V66.4XXD – Person boarding or alighting a heavy transport vehicle injured in collision with other nonmotor vehicle, subsequent encounterBillable
- V66.4XXS – Person boarding or alighting a heavy transport vehicle injured in collision with other nonmotor vehicle, sequelaBillable
7th character values
Codes in this category need a 7th character to describe the encounter or episode of care (use placeholder X for empty positions).
| Character | Meaning |
|---|---|
A | initial encounter |
D | subsequent encounter |
S | sequela |
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
V66 – Occupant of heavy transport vehicle injured in collision with other nonmotor vehicle
- collision with animal-drawn vehicle, animal being ridden, streetcar
- The appropriate 7th character is to be added to each code from category V66
Block V60-V69
- 18 wheeler
- armored car
- panel truck
- bus
- motorcoach
Related codes in V66
- V66.0 – Driver of heavy transport vehicle injured in collision with other nonmotor vehicle in nontraffic accidentHeader
- V66.1 – Passenger in heavy transport vehicle injured in collision with other nonmotor vehicle in nontraffic accidentHeader
- V66.2 – Person on outside of heavy transport vehicle injured in collision with other nonmotor vehicle in nontraffic accidentHeader
- V66.3 – Unspecified occupant of heavy transport vehicle injured in collision with other nonmotor vehicle in nontraffic accidentHeader
- V66.5 – Driver of heavy transport vehicle injured in collision with other nonmotor vehicle in traffic accidentHeader
- V66.6 – Passenger in heavy transport vehicle injured in collision with other nonmotor vehicle in traffic accidentHeader
- V66.7 – Person on outside of heavy transport vehicle injured in collision with other nonmotor vehicle in traffic accidentHeader
- V66.9 – Unspecified occupant of heavy transport vehicle injured in collision with other nonmotor vehicle in traffic accidentHeader
Frequently asked questions
What is ICD-10 code V66.4?
V66.4 is the ICD-10-CM code for person boarding or alighting a heavy transport vehicle injured in collision with other nonmotor vehicle, in the block V60-V69 (Occupant of heavy transport vehicle injured in transport accident).
Is V66.4 a billable code?
No. V66.4 is a header code with more specific child codes; report one of the billable codes listed above.
What category does V66.4 belong to?
It belongs to category V66 – Occupant of heavy transport vehicle injured in collision with other nonmotor vehicle.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.