Is W64 a billable ICD-10-CM code?

No. W64 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does W64 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 W64?

W64 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

W64

W64 — Exposure to other animate mechanical forces

Non-billable headerICD-10-CM

W64 is a non-billable header ICD-10-CM code for exposure to other animate mechanical forces. 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 code W64

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

contact with venomous animal (T63.-)

Includes

Conditions this code covers.

exposure to nonvenomous animal NOS

Risk adjustment

W64 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 W64 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 W64.

Accident›caused by, due to›animal NEC
Contact›with›animal NEC(nonvenomous)
Contact›with›animate mechanical force NEC
Exposure›mechanical forces NEC›animate NEC

Code to one of these instead W64

3 child codes. Green means billable.

Questions about W64

Is W64 a billable ICD-10-CM code?: No. W64 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does W64 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 W64?: W64 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.