Is W01.0 a billable ICD-10-CM code?

No. W01.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does W01.0 sit in the tabular list?

External causes of morbidity (V00-Y99), in the block Slipping, tripping, stumbling and falls (W00-W19).

What cannot be coded together with W01.0?

W01.0 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 W01.0 (W01) and apply to it just the same.

W01.0

W01.0 — Fall on same level from slipping, tripping and stumbling without subsequent striking against object

Non-billable headerICD-10-CM

W01.0 is a non-billable header ICD-10-CM code for fall on same level from slipping, tripping and stumbling without subsequent striking against object. 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 W01

A: initial encounter
D: subsequent encounter
S: sequela

Inclusion terms

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

Falling over animal

Excludes1 inherited from the categories above W01.0

These are not written on W01.0, but they bind it: a note on a category applies to every code beneath it. Billing W01.0 with anything listed here is a denial.

Written on W01 — Fall on same level from slipping, tripping and stumbling

fall due to bumping (striking) against object (W18.0-)
fall in shower or bathtub (W18.2-)
fall on same level NOS (W18.30)
fall on same level from slipping, tripping and stumbling due to ice or snow (W00.0)
fall off or from toilet (W18.1-)
slipping, tripping and stumbling NOS (W18.40)
slipping, tripping and stumbling without falling (W18.4-)

Risk adjustment

W01.0 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 W01.0 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 W01.0.

Slipping(accidental) (on same level) (with fall)
Fall, falling›due to›slipping(on moving sidewalk)
Fall, falling›over›animal
Fall, falling›over›small object
Slipping›on›mud
Slipping›on›oil
Slipping›on›surface NEC(slippery) (wet)
Stumbling›over›animal NEC
Tripping›over›animal
Fall, falling›same level›from›slipping, stumbling, tripping
Tripping›over›animal›with fall

Code history

W01.0 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 W01.0

3 child codes. Green means billable.

Related codes at this level

Codes that share W01. If W01.0 is not quite right, the correct code is usually one of these.

W01.1Fall on same level from slipping, tripping and stumbling with subsequent striking against object

Questions about W01.0

Is W01.0 a billable ICD-10-CM code?: No. W01.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does W01.0 sit in the tabular list?: External causes of morbidity (V00-Y99), in the block Slipping, tripping, stumbling and falls (W00-W19).
What cannot be coded together with W01.0?: W01.0 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 W01.0 (W01) and apply to it just the same.