V66.4XXA — Person boarding or alighting a heavy transport vehicle injured in collision with other nonmotor vehicle, initial encounter
Is V66.4XXA billable?
Yes — V66.4XXA is billable for FY2027. V66.4XXA is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. V66.4XXA may be submitted for encounters from October 1, 2026 through September 30, 2027.
V66.4XXA at a glance
| Code | V66.4XXA |
|---|---|
| Description | Person boarding or alighting a heavy transport vehicle injured in collision with other nonmotor vehicle, initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "A" | initial encounter |
What does the 7th character "A" mean in V66.4XXA?
In V66.4XXA, the 7th character A means initial encounter. The 7th character is required for V66.4XXA to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is V66.4XXA listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under V66.4, the nearest indexed parent of V66.4XXA. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Accident › transport › truckoccupant › collision › animal-drawn vehicle › while boarding or alighting (to)
- Accident › transport › truckoccupant › collision › specified vehicle NEC › while boarding or alighting (to)
- Accident › transport › truckoccupant › collision › streetcar › while boarding or alighting (to)
- Accident › transport › truckoccupant › collision › animal › being ridden › while boarding or alighting (to)
Excludes1 — never code together — inherited from V60-V69
The conditions below can never be reported together with V66.4XXA on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- bus
- motorcoach
How long has V66.4XXA existed?
V66.4XXA has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.