V66.4Header code — not billable
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
- Chapter
- 20. External causes of morbidity
- Category
- V66
- Effective date
- October 1, 2026
Related codes in category V66
V66Occupant of hv veh injured in collision w nonmtr vehicleV66.0Driver of hv veh injured in clsn w nonmtr vehicle nontrafV66.0XXADriver of hv veh inj in clsn w nonmtr vehicle nontraf, initYesV66.0XXDDriver of hv veh inj in clsn w nonmtr vehicle nontraf, subsYesV66.0XXSDriver of hv veh inj in clsn w nonmtr vehicle nontraf, sqlaYesV66.1Passenger in hv veh injured in clsn w nonmtr vehicle nontrafV66.1XXAPasngr in hv veh inj in clsn w nonmtr vehicle nontraf, initYesV66.1XXDPasngr in hv veh inj in clsn w nonmtr vehicle nontraf, subsYesV66.1XXSPasngr in hv veh inj in clsn w nonmtr vehicle nontraf, sqlaYesV66.2Person outside hv veh inj in clsn w nonmtr vehicle nontrafV66.2XXAPerson outsd hv veh inj in clsn w nonmtr veh nontraf, initYesV66.2XXDPerson outsd hv veh inj in clsn w nonmtr veh nontraf, subsYes
Frequently asked questions
What is ICD-10 code V66.4?
V66.4 is an ICD-10-CM diagnosis code for Person boarding or alighting a heavy transport vehicle injured in collision with other nonmotor vehicle.
Is V66.4 a billable code?
No. V66.4 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is V66.4 in?
V66.4 falls under Chapter 20: External causes of morbidity.
When did V66.4 become effective?
V66.4 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to V66.4?
V66.4 belongs to category V66, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.