Is W24.1 a billable ICD-10-CM code?

No. W24.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does W24.1 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 W24.1?

W24.1 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 W24.1 (W24) and apply to it just the same.

W24.1

W24.1 — Contact with transmission devices, not elsewhere classified

Non-billable headerICD-10-CM

W24.1 is a non-billable header ICD-10-CM code for contact with transmission devices, not elsewhere classified. 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 W24

A: initial encounter
D: subsequent encounter
S: sequela

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Contact with transmission belt or cable

Excludes1 inherited from the categories above W24.1

These are not written on W24.1, but they bind it: a note on a category applies to every code beneath it. Billing W24.1 with anything listed here is a denial.

Written on W24 — Contact with lifting and transmission devices, not elsewhere classified

transport accidents (V01-V99)

Other codes that can never be billed with W24.1

These codes carry an Excludes1 note pointing at W24.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading W24.1 alone.

W23Caught, crushed, jammed or pinched in or between objects

Risk adjustment

W24.1 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 W24.1 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 W24.1.

Accident›caused by, due to›transmission device
Contact›with›conveyer belt
Contact›with›transmission device(belt, cable, chain, gear, pinion, shaft)
Contact›with›machine, machinery›transmission

Code history

W24.1 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead W24.1

3 child codes. Green means billable.

Related codes at this level

Codes that share W24. If W24.1 is not quite right, the correct code is usually one of these.

W24.0Contact with lifting devices, not elsewhere classified

Questions about W24.1

Is W24.1 a billable ICD-10-CM code?: No. W24.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does W24.1 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 W24.1?: W24.1 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 W24.1 (W24) and apply to it just the same.