Is ICD-10-CM code V99 billable?

No, V99 (Unspecified transport accident) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code V99 belong to?

V99 belongs to Chapter 20 of the ICD-10-CM tabular list: V00–Y99 (External Causes of Morbidity).

V99Not billable, use a more specific code below

Unspecified transport accident

In Other and unspecified transport accidents (V98-V99), chapter 20: External Causes of Morbidity

3 billable codes under V99: none are a CC or MCC; none map to an HCC.

Instructional notes

Also applies, from Other and unspecified transport accidents (V98-V99)

These notes sit on V98-V99 and apply to every code under it, including V99.

Excludes1: not coded here, use a different code

vehicle accident, type of vehicle unspecified (V89.-)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers how to report external cause codes (V00-Y99) describing cause, intent, place, activity, and status. They are never principal or first-listed, and reporting is voluntary unless required.

General External Cause Coding Guidelines (page 88)
Place of Occurrence Guideline (page 89)
Activity Code (page 89)
Place of Occurrence, Activity, and Status Codes Used with other External Cause Code (page 89)
If the Reporting Format Limits the Number of External Cause Codes (page 90)
Multiple External Cause Coding Guidelines (page 90)
Child and Adult Abuse Guideline (page 90)
Unknown or Undetermined Intent Guideline (page 91)

Read Section I.C.20 (page 87), 3 more topics

All codes under V99

V99 can't be used on a claim. Pick a billable code below; grey headings group them.

V99 MS-DRGs

This code does not group to an MS-DRG as a principal diagnosis.

Other codes that refer to V99

Notes on these codes point to V99.

W00-W19 Excludes1: fall (in) (from) transport vehicle (V01-V99)
W20 Excludes1: falling object in transport accident (V01-V99)
W23 Excludes1: injury caused by transport vehicle being used as a means of transportation (V01-V99)
W24 Excludes1: transport accidents (V01-V99)
W25 Code First: transport accident (V00-V99)
W30 Excludes1: agricultural transport vehicle accident (V01-V99)
W30.81 Excludes1: agricultural transport vehicle accident (V01-V99)
W31 Excludes1: contact with machinery in transport under own power or being towed by a vehicle (V01-V99)
W31.83 Excludes1: special construction vehicle accident (V01-V99)
X00-X08 Excludes2: transport accident (V01-V99)
X36 Excludes2: transport accident involving collision with avalanche or landslide not in motion (V01-V99)
Y92.81 Excludes1: transport accidents (V00-V99)

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.