T63 vs W64
T63 (Toxic effect of contact with venomous animals and plants) compared with W64 (Exposure to other animate mechanical forces), 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. W64 carries an Excludes1 note covering T63: “contact with venomous animal (T63.-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. W64 carries an Excludes1 note covering T63: “Toxic effect of contact with venomous animals and plants (T63.-)”
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
| T63Toxic effect of contact with venomous animals and plants | W64Exposure to other animate mechanical forces | |
|---|---|---|
| Billing status | Non-billable header Report instead: T63.001A, T63.001D, T63.001S, T63.002A, T63.002D | Non-billable header |
| Classification | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) | V00-Y99 — External Causes of Morbidity (V00-Y99) |
| Definition | Toxic effect of contact with venomous animals and plants is a non-billable ICD-10-CM category code (T63). | Exposure to other animate mechanical forces is a non-billable ICD-10-CM category code (W64). |
| 7th character | The appropriate 7th character is to be added to each code from category T63 | The appropriate 7th character is to be added to code W64 |
| Includes | bite or touch of venomous animal pricked or stuck by thorn or leaf | exposure to nonvenomous animal NOS |
| Use additional code | code(s): for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70) personal history of foreign body fully removed (Z87.821) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources