W59
⚠ Non-billable
Contact with other nonvenomous reptiles
ICD-10-CM · FY2026 · External Causes of Morbidity
Code
W59
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
External Causes of Morbidity
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Excludes1 — never code together
- contact with venomous reptile (T63.0-, T63.1-)
7th character
- The appropriate 7th character is to be added to each code from category W59
Frequently asked questions
What is ICD-10 code W59?
ICD-10-CM code W59 represents Contact with other nonvenomous reptiles. It is a non-billable header code requiring a more specific subcategory in the External Causes of Morbidity chapter, effective October 1, 2025 – September 30, 2026.
Is W59 billable?
No. W59 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is W59 in?
W59 belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.
Related codes in the W59 category
W59.0
Contact with nonvenomous lizards
Non-billable
W59.1
Contact with nonvenomous snakes
Non-billable
W59.2
Contact with turtles
Non-billable
W59.8
Contact with other nonvenomous reptiles
Non-billable
W59.01
Bitten by nonvenomous lizards
Non-billable
W59.02
Struck by nonvenomous lizards
Non-billable
W59.09
Other contact with nonvenomous lizards
Non-billable
W59.11
Bitten by nonvenomous snake
Non-billable
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