V99 vs X05
V99 (Unspecified transport accident) compared with X05 (Exposure to ignition or melting of nightwear), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. X05 carries an Excludes2 note covering V99: “transport accident (V01-V99)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| V99Unspecified transport accident | X05Exposure to ignition or melting of nightwear | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | V00-Y99 — External Causes of Morbidity (V00-Y99) | V00-Y99 — External Causes of Morbidity (V00-Y99) |
| Definition | Unspecified transport accident is a non-billable ICD-10-CM category code (V99). | Exposure to ignition or melting of nightwear is a non-billable ICD-10-CM category code (X05). |
| 7th character | The appropriate 7th character is to be added to code V99 | The appropriate 7th character is to be added to code X05 |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources