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ICD-10-CM 2027 diagnosis code

V99Unspecified transport accident

Not billable — use a more specific code

V99 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About V99

V99 is the ICD-10-CM diagnosis code for unspecified transport accident. It belongs to block V98-V99 (other and unspecified transport accidents) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: V99.XXXA (initial encounter), V99.XXXD (subsequent encounter) and V99.XXXS (sequela).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under V99

Notes that apply from higher levels

Instructions written at a parent level also apply to V99.

Broader instructions also apply from V98-V99 Other and unspecified transport accidents and Chapter 20: External causes of morbidity.

Alphabetic index entries

2 entries

Terms in the official ICD-10-CM index that lead to V99.

Codes whose notes reference V99

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about V99

Is V99 billable?

No. V99 is a header code. Report one of its more specific subcodes instead.