W18.40XD — Slipping, tripping and stumbling without falling, unspecified, subsequent encounter
Is W18.40XD billable?
Yes, but W18.40XD is an unspecified code. W18.40XD is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, W18.40XD is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting W18.40XD — the more specific alternatives are listed below.
More specific alternatives
- W18.41XDSlipping, tripping and stumbling without falling due to stepping on object, subsequent encounter
- W18.42XDSlipping, tripping and stumbling without falling due to stepping into hole or opening, subsequent encounter
- W18.43XDSlipping, tripping and stumbling without falling due to stepping from one level to another, subsequent encounter
- W18.49XDOther slipping, tripping and stumbling without falling, subsequent encounter
W18.40XD at a glance
| Code | W18.40XD |
|---|---|
| Description | Slipping, tripping and stumbling without falling, unspecified, subsequent encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "D" | subsequent encounter |
What does the 7th character "D" mean in W18.40XD?
In W18.40XD, the 7th character D means subsequent encounter. The 7th character is required for W18.40XD to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is W18.40XD listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under W18.40, the nearest indexed parent of W18.40XD. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- 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 W18.40XD on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from W18.4
The conditions below can never be reported together with W18.40XD 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 W18.40XD, but a patient may have both at the same time. When documentation supports it, W18.40XD and the excluded code may both be reported.
How long has W18.40XD existed?
W18.40XD 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.