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ICD-10-CM 2027 diagnosis code

V99.XXXSUnspecified transport accident, sequela

✓ Billable / specificPOA exemptRequires 7th character

V99.XXXS is a valid, billable ICD-10-CM code for unspecified transport accident, sequela. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

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.XXXS

V99.XXXS is the ICD-10-CM diagnosis code for unspecified transport accident, sequela. It belongs to category V99 (unspecified transport accident), block V98-V99 (other and unspecified transport accidents) and chapter 20 (external causes of morbidity). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

The 7th character "S" means sequela: use it for complications or conditions that arise as a direct result of the original condition.

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.

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

Before ICD-10, this condition was coded in ICD-9-CM as E929.1 (late effects of other transport accident).

7th character

Ssequela

Other encounter types for V99:

Notes that apply from higher levels

Instructions written at a parent level also apply to V99.XXXS.

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

ICD-9-CM equivalent

Converter →
  • E929.1Late effects of other transport accidentapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

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.XXXS

Is V99.XXXS billable?

Yes. V99.XXXS is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

What does the "S" at the end of V99.XXXS mean?

It is the 7th character for sequela. Per the official guidelines, use it for complications or conditions that arise as a direct result of the original condition.

Can V99.XXXS be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict V99.XXXS as a principal diagnosis.

Is V99.XXXS a CC or MCC?

No. V99.XXXS is neither a CC nor an MCC under MS-DRG v44.0.

What is the ICD-9 code for V99.XXXS?

The CMS General Equivalence Mappings map V99.XXXS to ICD-9-CM E929.1.