X08 vs X13
X08 (Exposure to other specified smoke, fire and flames) compared with X13 (Contact with steam and other hot vapors), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. X13 carries an Excludes1 note covering X08: “exposure to fire and flames (X00-X08)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| X08Exposure to other specified smoke, fire and flames | X13Contact with steam and other hot vapors | |
|---|---|---|
| Billing status | Non-billable header Report instead: X08.00XA, X08.00XD, X08.00XS, X08.01XA, X08.01XD | Non-billable header Report instead: X13.0XXA, X13.0XXD, X13.0XXS, X13.1XXA, X13.1XXD |
| Classification | V00-Y99 — External Causes of Morbidity (V00-Y99) | V00-Y99 — External Causes of Morbidity (V00-Y99) |
| Definition | Exposure to other specified smoke, fire and flames is a non-billable ICD-10-CM category code (X08). | Contact with steam and other hot vapors is a non-billable ICD-10-CM category code (X13). |
| 7th character | The appropriate 7th character is to be added to each code from category X08 | The appropriate 7th character is to be added to each code from category X13 |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources