Is W55.52 a billable ICD-10-CM code?

No. W55.52 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does W55.52 sit in the tabular list?

External causes of morbidity (V00-Y99), in the block Exposure to animate mechanical forces (W50-W64).

What cannot be coded together with W55.52?

W55.52 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above W55.52 (W55) and apply to it just the same.

W55.52

W55.52 — Struck by raccoon

Non-billable headerICD-10-CM

W55.52 is a non-billable header ICD-10-CM code for struck by raccoon. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category W55

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 inherited from the categories above W55.52

These are not written on W55.52, but they bind it: a note on a category applies to every code beneath it. Billing W55.52 with anything listed here is a denial.

Written on W55 — Contact with other mammals

animal being ridden- see transport accidents
bitten or struck by dog (W54)
bitten or struck by rodent (W53.-)
contact with marine mammals (W56.-)

Risk adjustment

W55.52 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

How W55.52 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to W55.52.

Contact›with›raccoon›strike

Code history

W55.52 has not changed since FY2024 — no addition, revision or deletion across the FY2024–FY2027 ICD-10-CM releases.

Code to one of these instead W55.52

3 child codes. Green means billable.

Related codes at this level

Codes that share W55.5. If W55.52 is not quite right, the correct code is usually one of these.

Questions about W55.52

Is W55.52 a billable ICD-10-CM code?: No. W55.52 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does W55.52 sit in the tabular list?: External causes of morbidity (V00-Y99), in the block Exposure to animate mechanical forces (W50-W64).
What cannot be coded together with W55.52?: W55.52 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above W55.52 (W55) and apply to it just the same.