W57.XXXA — Bitten or stung by nonvenomous insect and other nonvenomous arthropods, initial encounter
Is W57.XXXA billable?
Yes — W57.XXXA is billable for FY2027. W57.XXXA is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. W57.XXXA may be submitted for encounters from October 1, 2026 through September 30, 2027.
W57.XXXA at a glance
| Code | W57.XXXA |
|---|---|
| Description | Bitten or stung by nonvenomous insect and other nonvenomous arthropods, initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is W57.XXXA listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under W57, the nearest indexed parent of W57.XXXA. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Bite, bitten by › arthropodNEC
- Bite, bitten by › insect
- Bite, bitten by › millipede
- Bite, bitten by › spider
- Sting › arthropod, nonvenomous
- Sting › insect, nonvenomous
- Contact › with › arthropods (accidental)
- Contact › with › insectNEC (accidental)
Excludes1 — never code together
The conditions below can never be reported together with W57.XXXA on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from W50-W64
The conditions below can never be reported together with W57.XXXA on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- Toxic effect of contact with venomous animals and plants (T63.-)
Excludes1 — never code together — inherited from W57
The conditions below can never be reported together with W57.XXXA on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
How long has W57.XXXA existed?
W57.XXXA has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.