W16.21 — Fall in (into) filled bathtub
Is W16.21 billable?
No — W16.21 is a non-billable header code. W16.21 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 6 billable codes beneath W16.21.
Billable codes under this header
- W16.211AFall in (into) filled bathtub causing drowning and submersion, initial encounter
- W16.211DFall in (into) filled bathtub causing drowning and submersion, subsequent encounter
- W16.211SFall in (into) filled bathtub causing drowning and submersion, sequela
- W16.212AFall in (into) filled bathtub causing other injury, initial encounter
- W16.212DFall in (into) filled bathtub causing other injury, subsequent encounter
- W16.212SFall in (into) filled bathtub causing other injury, sequela
W16.21 at a glance
| Code | W16.21 |
|---|---|
| Description | Fall in (into) filled bathtub |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with W16.21 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- fall into empty bathtub (W18.2)
Excludes1 — never code together — inherited from W00-W19
The conditions below can never be reported together with W16.21 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 W16
The conditions below can never be reported together with W16.21 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from W00-W19
The conditions below are not part of W16.21, but a patient may have both at the same time. When documentation supports it, W16.21 and the excluded code may both be reported.
Excludes2 — not included here — inherited from W16
The conditions below are not part of W16.21, but a patient may have both at the same time. When documentation supports it, W16.21 and the excluded code may both be reported.
- striking or hitting diving board (W21.4)
What codes fall under W16.21? (2)
How long has W16.21 existed?
W16.21 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.