V99Header code — not billable

Unspecified transport accident

Chapter
20. External causes of morbidity
Category
V99
Effective date
October 1, 2026

Related codes in category V99

V99.XXXAUnspecified transport accident, initial encounterYesV99.XXXDUnspecified transport accident, subsequent encounterYesV99.XXXSUnspecified transport accident, sequelaYes

Frequently asked questions

What is ICD-10 code V99?

V99 is an ICD-10-CM diagnosis code for Unspecified transport accident.

Is V99 a billable code?

No. V99 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 V99 in?

V99 falls under Chapter 20: External causes of morbidity.

When did V99 become effective?

V99 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to V99?

V99 belongs to category V99, which includes 3 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.