W59.11XS — Bitten by nonvenomous snake, sequela
Is W59.11XS billable?
Yes — W59.11XS is billable for FY2027. W59.11XS is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. W59.11XS may be submitted for encounters from October 1, 2026 through September 30, 2027.
W59.11XS at a glance
| Code | W59.11XS |
|---|---|
| Description | Bitten by nonvenomous snake, sequela |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "S" | sequela |
What does the 7th character "S" mean in W59.11XS?
In W59.11XS, the 7th character S means sequela. The 7th character is required for W59.11XS to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is W59.11XS listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under W59.11, the nearest indexed parent of W59.11XS. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Bite, bitten by › snake
- Bite, bitten by › reptile › snake
- Contact › with › snake › bite (accidental)
Excludes1 — never code together — inherited from W50-W64
The conditions below can never be reported together with W59.11XS 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 W59
The conditions below can never be reported together with W59.11XS 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 W59.11XS existed?
W59.11XS 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.