W59.81XA ICD-10-CM Code: Bitten by other nonvenomous reptiles, initial encounter
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Bitten by other nonvenomous reptiles, initial encounter is a billable ICD-10-CM diagnosis code (W59.81A).
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for W59.81XA in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- contact with venomous reptile (T63.0-, T63.1-)
- Toxic effect of contact with venomous animals and plants (T63.-)
Frequently Asked Questions (FAQ) & Clinical Guidance
Does W59.81XA require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category W59.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to W59.81XA in its code family, with their registry titles.
- W59.29XA — Other contact with turtle, initial encounter
- W59.29XD — Other contact with turtle, subsequent encounter
- W59.29XS — Other contact with turtle, sequela
- W59.8 — Contact with other nonvenomous reptiles
- W59.81 — Bitten by other nonvenomous reptiles
- W59.81XD — Bitten by other nonvenomous reptiles, subsequent encounter
- W59.81XS — Bitten by other nonvenomous reptiles, sequela
- W59.82 — Struck by other nonvenomous reptiles
- W59.82XA — Struck by other nonvenomous reptiles, initial encounter
- W59.82XD — Struck by other nonvenomous reptiles, subsequent encounter