V68.4 Person boarding or alighting a heavy transport vehicle injured in noncollision transport accident

ICD-10-CM Code V68.4: Person boarding or alighting a heavy transport vehicle injured in noncollision transport accident

ICD-10-CM code V68.4 identifies an injury sustained by a person while boarding or alighting a heavy transport vehicle during a noncollision transport accident. The terminology is active for the 2026 version and falls under the broader parent category of heavy transport vehicle occupants injured in noncollision transport accidents. 1

Plain-language overview

Code V68.4 applies to an injury or poisoning event where a person is hurt while getting on or off a heavy transport vehicle without a collision occurring. 1

What this code represents

The official display label for V68.4 is person boarding or alighting a heavy transport vehicle injured in noncollision transport accident, and the concept carries the semantic type of injury or poisoning. 1

V68.4 is an active terminology record for the 2026 ICD-10-CM version and has no narrower child concepts within the terminology structure. [S1] The parent concept is V68, covering occupants of heavy transport vehicles injured in noncollision transport accidents. 1

Coding details

In ICD-10, the letter V designates transportation-related injuries, where initial subdivisions identify the victim's mode of transport and the third character identifies the accident circumstance, such as noncollision. 3

Mortality classification instructions direct coders to refer to Volume 1 for the fourth character and select 4 for a person injured while boarding or alighting in specified noncollision land transport accidents. 4

Documentation considerations

The external cause index directs queries for injuries occurring while boarding or alighting to transport accidents categorized by the specific type of vehicle involved. 5

Clinical literature on electric bicycle injuries lists distinct codes for persons boarding or alighting electric bicycles in noncollision transport accidents, differentiating these events from heavy transport vehicle boarding injuries. 2

What the sources add

While the official terminology record defines V68.4 as a heavy transport vehicle boarding injury, clinical literature demonstrates separate specific codes exist for electric bicycle riders boarding vehicles in noncollision accidents. 1 2

Sources

1. ICD-10-CM V68.4 terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. The Impact of Helmet Use on Injury Severity and Clinical Outcomes in E-Bike Riders — pmc.ncbi.nlm.nih.gov; accessed 2026-07-27.
3. The transition to ICD-10: Implications for injury mortality ... — cdc.gov; accessed 2026-07-27.
4. Instructions for Classifying Multiple Causes of Death, 2019 – Section V — cdc.gov; accessed 2026-07-27.
5. 2020-ICD-10-CM External Cause of Injuries Index — cms.gov; accessed 2026-07-27.