W58.0 – Contact with alligator
ICD-10-CM 2027 diagnosis code · Exposure to animate mechanical forces
- Code
W58.0(claims format:W580)- Description
- Contact with alligator
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 20. External causes of morbidity (V00-Y99)
- Block
- W50-W64 Exposure to animate mechanical forces
- Parent codes
- W58
Billable codes under W58.0
W58.0 is a header code and cannot be used on claims. Choose the most specific code:
- W58.01 – Bitten by alligatorHeader (more codes below)
- W58.02 – Struck by alligatorHeader (more codes below)
- W58.03 – Crushed by alligatorHeader (more codes below)
- W58.09 – Other contact with alligatorHeader (more codes below)
7th character values
Codes in this category need a 7th character to describe the encounter or episode of care (use placeholder X for empty positions).
| Character | Meaning |
|---|---|
A | initial encounter |
D | subsequent encounter |
S | sequela |
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
W58 – Contact with crocodile or alligator
- The appropriate 7th character is to be added to each code from category W58
Block W50-W64
- Toxic effect of contact with venomous animals and plants (T63.-)
Related codes in W58
Frequently asked questions
What is ICD-10 code W58.0?
W58.0 is the ICD-10-CM code for contact with alligator, in the block W50-W64 (Exposure to animate mechanical forces).
Is W58.0 a billable code?
No. W58.0 is a header code with more specific child codes; report one of the billable codes listed above.
What category does W58.0 belong to?
It belongs to category W58 – Contact with crocodile or alligator.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.