W59.21XA is the authoritative medical code for Bitten by turtle, initial encounter. This classification is used in medical billing and clinical recording to specify the clinical criteria for bitten by turtle, initial encounter (ICD-10-CM W59.21XA), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Bitten by turtle, initial encounter is a billable ICD-10-CM diagnosis code W59.21A. Excludes1 (not coded here): contact with tortoises W59.8-; contact with venomous reptile (T63.0-, T63.1-); Toxic effect of contact with venomous animals and plants T63.-. 7th character: The appropriate 7th character is to be added to each code from category W59.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for W59.21XA 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 tortoises W59.8-
- 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 W59.21XA require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category W59.
What can't be coded together with W59.21XA?
Per Excludes1 instructions, W59.21XA must not be reported with: contact with tortoises (W59.8-); contact with venomous reptile (T63.0-, T63.1-); Toxic effect of contact with venomous animals and plants (T63.-).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as W59.21XA, with their registry titles.
- W59 — Contact with other nonvenomous reptiles
- W59.0 — Contact with nonvenomous lizards
- W59.01 — Bitten by nonvenomous lizards
- W59.01XA — Bitten by nonvenomous lizards, initial encounter
- W59.01XD — Bitten by nonvenomous lizards, subsequent encounter
- W59.01XS — Bitten by nonvenomous lizards, sequela
- W59.02 — Struck by nonvenomous lizards
- W59.02XA — Struck by nonvenomous lizards, initial encounter
- W59.02XD — Struck by nonvenomous lizards, subsequent encounter
- W59.02XS — Struck by nonvenomous lizards, sequela
- W59.09 — Other contact with nonvenomous lizards
- W59.09XA — Other contact with nonvenomous lizards, initial encounter
- W59.09XD — Other contact with nonvenomous lizards, subsequent encounter
- W59.09XS — Other contact with nonvenomous lizards, sequela
- W59.1 — Contact with nonvenomous snakes
- W59.11 — Bitten by nonvenomous snake
- W59.11XA — Bitten by nonvenomous snake, initial encounter
- W59.11XD — Bitten by nonvenomous snake, subsequent encounter
- W59.11XS — Bitten by nonvenomous snake, sequela
- W59.12 — Struck by nonvenomous snake
- W59.12XA — Struck by nonvenomous snake, initial encounter
- W59.12XD — Struck by nonvenomous snake, subsequent encounter
- W59.12XS — Struck by nonvenomous snake, sequela
- W59.13 — Crushed by nonvenomous snake
- W59.13XA — Crushed by nonvenomous snake, initial encounter
- W59.13XD — Crushed by nonvenomous snake, subsequent encounter
- W59.13XS — Crushed by nonvenomous snake, sequela
- W59.19 — Other contact with nonvenomous snake
- W59.19XA — Other contact with nonvenomous snake, initial encounter
- W59.19XD — Other contact with nonvenomous snake, subsequent encounter
- W59.19XS — Other contact with nonvenomous snake, sequela
- W59.2 — Contact with turtles
- W59.21 — Bitten by turtle
- W59.21XD — Bitten by turtle, subsequent encounter
- W59.21XS — Bitten by turtle, sequela
- W59.22 — Struck by turtle
- W59.22XA — Struck by turtle, initial encounter
- W59.22XD — Struck by turtle, subsequent encounter
- W59.22XS — Struck by turtle, sequela
- W59.29 — Other contact with turtle
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: