Is W23 a billable ICD-10-CM code?

No. W23 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does W23 sit in the tabular list?

External causes of morbidity (V00-Y99), in the block Exposure to inanimate mechanical forces (W20-W49).

What cannot be coded together with W23?

W23 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

W23

W23 — Caught, crushed, jammed or pinched in or between objects

Non-billable headerICD-10-CM

W23 is a non-billable header ICD-10-CM code for caught, crushed, jammed or pinched in or between objects. 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 W23

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.

injury caused by cutting or piercing instruments (W25-W27)
injury caused by firearms malfunction (W32.1, W33.1-, W34.1-)
injury caused by lifting and transmission devices (W24.-)
injury caused by machinery (W28-W31)
injury caused by nonpowered hand tools (W27.-)
injury caused by transport vehicle being used as a means of transportation (V01-V99)
injury caused by struck by thrown, projected or falling object (W20.-)

Risk adjustment

W23 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.

Code to one of these instead W23

3 child codes. Green means billable.

Questions about W23

Is W23 a billable ICD-10-CM code?: No. W23 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does W23 sit in the tabular list?: External causes of morbidity (V00-Y99), in the block Exposure to inanimate mechanical forces (W20-W49).
What cannot be coded together with W23?: W23 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.