W57Header code — not billable

Bitten or stung by nonvenomous insect and other nonvenomous arthropods

Short description: Bit/stung by nonvenom insect and oth nonvenomous arthropods

Chapter
20. External causes of morbidity
Category
W57
Effective date
October 1, 2026

Related codes in category W57

W57.XXXABit/stung by nonvenom insect & oth nonvenom arthropods, initYesW57.XXXDBit/stung by nonvenom insect & oth nonvenom arthropods, subsYesW57.XXXSBit/stung by nonvenom insect & oth nonvenom arthropods, sqlaYes

Frequently asked questions

What is ICD-10 code W57?

W57 is an ICD-10-CM diagnosis code for Bitten or stung by nonvenomous insect and other nonvenomous arthropods.

Is W57 a billable code?

No. W57 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is W57 in?

W57 falls under Chapter 20: External causes of morbidity.

When did W57 become effective?

W57 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to W57?

W57 belongs to category W57, which includes 3 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.