W55.89XS — Other contact with other mammals, sequela
Is W55.89XS billable?
Yes — W55.89XS is billable for FY2027. W55.89XS is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. W55.89XS may be submitted for encounters from October 1, 2026 through September 30, 2027.
W55.89XS at a glance
| Code | W55.89XS |
|---|---|
| Description | Other contact with other mammals, 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 W55.89XS?
In W55.89XS, the 7th character S means sequela. The 7th character is required for W55.89XS to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is W55.89XS listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under W55.89, the nearest indexed parent of W55.89XS. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Attack by mammals NEC
- Implantation of quills of porcupine
- Mauled by animal NEC
- Trampled by animal NEC
- Fallen on by › animalNEC
- Run over › animalNEC (accidentally) (by)
- Struckby › animalNEC (accidentally)
- Struckby › mammal NEC (accidentally)
Excludes1 — never code together — inherited from W50-W64
The conditions below can never be reported together with W55.89XS 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 W55
The conditions below can never be reported together with W55.89XS 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 W55.89XS existed?
W55.89XS 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.