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W57

Billable

Bitten or stung by nonvenomous insect and other nonvenomous arthropods

W57 is the ICD-10-CM code for Bitten or stung by nonvenomous insect and other nonvenomous arthropods. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
V00-Y99
Edition
FY2026

V00-Y99 External causes of morbidity

What this means — in plain language

MedlinePlus · NIH

Most insect bites are harmless, though they sometimes cause discomfort. Bee, wasp, and hornet stings and fire ant bites usually hurt. Mosquito and flea bites usually itch. Insects can also spread diseases. In the United States, some mosquitoes spread West Nile virus . Travelers outside the United States may be at risk for malaria and other infections. To prevent insect bites and their complications: Don't bother…

Read more about Insect Bites and Stings at MedlinePlus ↗
Spider Bites ↗Tick Bites ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

Frequently asked questions

What is ICD-10 code W57?
W57 is the ICD-10-CM code for "Bitten or stung by nonvenomous insect and other nonvenomous arthropods". It falls under V00-Y99 External causes of morbidity.
Is W57 a billable code?
Yes — W57 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from W57?
Excludes1 (not coded here): contact with venomous insects and arthropods (T63.2-, T63.3-, T63.4-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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