V99 — Unspecified transport accident
V99 is a non-billable header ICD-10-CM code for unspecified transport accident. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to code V99
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Other codes that can never be billed with V99
These codes carry an Excludes1 note pointing at V99. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading V99 alone.
- Y92.81Transport vehicle as the place of occurrence of the external cause
- W20Struck by thrown, projected or falling object
- W23Caught, crushed, jammed or pinched in or between objects
- W24Contact with lifting and transmission devices, not elsewhere classified
- W30Contact with agricultural machinery
- W30.81Contact with agricultural transport vehicle in stationary use
- W30.81XAContact with agricultural transport vehicle in stationary use, initial encounter
- W30.81XDContact with agricultural transport vehicle in stationary use, subsequent encounter
Risk adjustment
V99 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How V99 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to V99.
- Accident›transport(involving injury to)
- Accident›transport›person NEC(unknown way or transportation)
Code to one of these instead V99
3 child codes. Green means billable.
Questions about V99
- Is V99 a billable ICD-10-CM code?
- No. V99 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does V99 sit in the tabular list?
- External causes of morbidity (V00-Y99), in the block Other and unspecified transport accidents (V98-V99).