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Dx

ICD-10-CM 2027 diagnosis code

W59.8Contact with other nonvenomous reptiles

Not billable — use a more specific codeRequires 7th character

W59.8 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it and add the required 7th character.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About W59.8

W59.8 is the ICD-10-CM diagnosis code for contact with other nonvenomous reptiles. It belongs to category W59 (contact with other nonvenomous reptiles), block W50-W64 (exposure to animate mechanical forces) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within W59, choose W59.8 (other nonvenomous reptiles) only when documentation doesn't support a more specific option: nonvenomous lizards (W59.0), nonvenomous snakes (W59.1) and turtles (W59.2).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

7th character

The appropriate 7th character is to be added to each code from category W59

  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Notes that apply from higher levels

Instructions written at a parent level also apply to W59.8.

› From W59 Contact with other nonvenomous reptiles
Excludes1

Broader instructions also apply from W50-W64 Exposure to animate mechanical forces and Chapter 20: External causes of morbidity.

Codes whose notes reference W59.8

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about W59.8

Is W59.8 billable?

No. W59.8 is a header code. Report one of its more specific subcodes instead.