W85 vs Y63.5
W85 (Exposure to electric transmission lines) compared with Y63.5 (Inappropriate temperature in local application and packing), 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. W85 carries an Excludes1 note covering Y63.5: “failure in dosage of radiation or temperature during surgical and medical care (Y63.2-Y63.5)”
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
| W85Exposure to electric transmission lines | Y63.5Inappropriate temperature in local application and packing | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | V00-Y99 — External Causes of Morbidity (V00-Y99) | V00-Y99 — External Causes of Morbidity (V00-Y99) |
| Definition | Exposure to electric transmission lines is a non-billable ICD-10-CM category code (W85). | Inappropriate temperature in local application and packing is a billable ICD-10-CM diagnosis code (Y63.5). |
| 7th character | The appropriate 7th character is to be added to code W85 | — |
| Includes | Broken power line | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources