Is W29 a billable ICD-10-CM code?

No. W29 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does W29 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 W29?

W29 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

W29

W29 — Contact with other powered hand tools and household machinery

Non-billable headerICD-10-CM

W29 is a non-billable header ICD-10-CM code for contact with other powered hand tools and household machinery. 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 W29

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 commercial machinery (W31.82)
contact with hot household appliance (X15)
contact with nonpowered hand tool (W27.-)
exposure to electric current (W86)

Other codes that can never be billed with W29

These codes carry an Excludes1 note pointing at W29. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading W29 alone.

W26.0Contact with knife
W26.0XXAContact with knife, initial encounter
W26.0XXDContact with knife, subsequent encounter
W26.0XXSContact with knife, sequela
W31.82Contact with other commercial machinery
W31.82XAContact with other commercial machinery, initial encounter
W31.82XDContact with other commercial machinery, subsequent encounter
W31.82XSContact with other commercial machinery, sequela

Risk adjustment

W29 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 W29

6 child codes. Green means billable.

Questions about W29

Is W29 a billable ICD-10-CM code?: No. W29 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does W29 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 W29?: W29 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.