W18.40 — Slipping, tripping and stumbling without falling, unspecified

Not billable

Is W18.40 billable?

No — W18.40 is a non-billable header code. W18.40 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath W18.40.

Billable codes under this header

W18.40XASlipping, tripping and stumbling without falling, unspecified, initial encounter
W18.40XDSlipping, tripping and stumbling without falling, unspecified, subsequent encounter
W18.40XSSlipping, tripping and stumbling without falling, unspecified, sequela

W18.40 at a glance

Code	W18.40
Description	Slipping, tripping and stumbling without falling, unspecified
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

How is W18.40 listed in the External Cause Index?

These are the routes through the External Cause of Injuries Index that lead to W18.40 — how the injury happened, rather than what the injury was.

Slipping › without fall (accidental) (on same level) (with fall)
Stumbling › without fall
Tripping › without fall

Excludes1 — never code together — inherited from W00-W19

The conditions below can never be reported together with W18.40 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

assault involving a fall (Y01-Y02)
fall from animal (V80.-)
fall (in) (from) machinery (in operation) (W28-W31)
fall (in) (from) transport vehicle (V01-V99)
intentional self-harm involving a fall (X80-X81)

Excludes1 — never code together — inherited from W18.4

The conditions below can never be reported together with W18.40 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

collision with another person without fall (W51)

Excludes2 — not included here — inherited from W00-W19

The conditions below are not part of W18.40, but a patient may have both at the same time. When documentation supports it, W18.40 and the excluded code may both be reported.

at risk for fall (history of fall) Z91.81
fall (in) (from) burning building (X00.-)
fall into fire (X00-X04, X08)

What codes fall under W18.40? (3)

How long has W18.40 existed?

W18.40 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.