Question 1

Is W57 a billable ICD-10 code?

Accepted Answer

Yes, W57 is a valid billable ICD-10-CM code for bitten or stung by nonvenomous insect and other nonvenomous arthropods. It can be used for medical billing and reimbursement purposes.

Question 2

What does ICD-10 code W57 mean?

Accepted Answer

ICD-10-CM code W57 represents Bitten or stung by nonvenomous insect and other nonvenomous arthropods. This code is part of the International Classification of Diseases, 10th Revision, Clinical Modification used for medical coding and billing in the United States.

Question 3

When was ICD-10 code W57 introduced?

Accepted Answer

Code W57 has been part of ICD-10-CM since 2016, when the coding system was mandated for use in the United States. This code was included in the original US implementation.

Question 4

What is the parent category for ICD-10 code W57?

Accepted Answer

The parent category for W57 is section:W50-W64 (Exposure to animate mechanical forces (W50-W64)). This hierarchical classification helps organize related diagnoses for more accurate coding.

Question 5

What conditions are excluded from W57?

Accepted Answer

Code W57 has Type 1 Excludes (mutually exclusive conditions) including: contact with venomous insects and arthropods (T63.2-, T63.3-, T63.4-). These conditions cannot be coded together with W57 as they represent different diagnoses.

Question 6

Does W57 require a 7th character extension?

Accepted Answer

Yes, W57 requires a 7th character to specify the encounter type. Available extensions include: A (initial encounter), D (subsequent encounter), S (sequela). Use "X" as a placeholder to fill empty positions before the 7th character (e.g., W57XXA for initial encounter). The extension indicates whether this is an initial visit, follow-up, or treatment for a late effect.

W57.XXXS2026

Excludes12Not coded together

Notes1Additional information

Also Known As8Alternative terms

7th Character Extensions3Encounter type specifiers