Y04.1XXS — Assault by human bite, sequela
Is Y04.1XXS billable?
Yes — Y04.1XXS is billable for FY2027. Y04.1XXS is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Y04.1XXS may be submitted for encounters from October 1, 2026 through September 30, 2027.
Y04.1XXS at a glance
| Code | Y04.1XXS |
|---|---|
| Description | Assault by human bite, 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 Y04.1XXS?
In Y04.1XXS, the 7th character S means sequela. The 7th character is required for Y04.1XXS to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is Y04.1XXS listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under Y04.1, the nearest indexed parent of Y04.1XXS. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Assault › bite (homicidal) (by) (in)
- Assault › bodily force › bite (homicidal) (by) (in)
- Bite, bitten by › human being › with intent to injure or kill
- Bite, bitten by › human being › assault
- Bite, bitten by › human being › homicide
- Bite, bitten by › person › with intent to injure or kill
- Bite, bitten by › person › assault
- Bite, bitten by › person › homicide
Excludes1 — never code together — inherited from X92-Y09
The conditions below can never be reported together with Y04.1XXS 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 Y04
The conditions below can never be reported together with Y04.1XXS 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 Y04.1XXS existed?
Y04.1XXS 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.