T63.1 vs W59.83XS
T63.1 (Toxic effect of venom of other reptiles) compared with W59.83XS (Crushed by other nonvenomous reptiles, sequela), 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. W59.83XS carries an Excludes1 note covering T63.1: “contact with venomous reptile (T63.0-, T63.1-)”
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. W59.83XS carries an Excludes1 note covering T63.1: “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
| T63.1Toxic effect of venom of other reptiles | W59.83XSCrushed by other nonvenomous reptiles, sequela | |
|---|---|---|
| Billing status | Non-billable header Report instead: T63.111A, T63.111D, T63.111S, T63.112A, T63.112D | Billable |
| 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 venom of other reptiles is a non-billable ICD-10-CM category code (T63.1). | Crushed by other nonvenomous reptiles, sequela is a billable ICD-10-CM diagnosis code (W59.83S). |
| 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 each code from category W59 |
| Includes | bite or touch of venomous animal pricked or stuck by thorn or leaf | — |
| 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