W16.21
W16.21: Fall in (into) filled bathtub
Non-billable headerICD-10-CM
W16.21 is a non-billable header ICD-10-CM code for fall in (into) filled bathtub. 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 W16
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- fall into empty bathtub (W18.2)
Excludes1 inherited from the categories above W16.21
A category’s note binds every code beneath it.
Excludes2 inherited from the categories above W16.21
Not part of this code, but both may be coded when both are present.
Other codes that can never be billed with W16.21
Their own Excludes1 notes name this code, so the conflict is not listed above.
- V90Drowning and submersion due to accident to watercraft
- V92Drowning and submersion due to accident on board watercraft, without accident to watercraft
- W18.2Fall in (into) shower or empty bathtub
- W18.2XXAFall in (into) shower or empty bathtub, initial encounter
- W18.2XXDFall in (into) shower or empty bathtub, subsequent encounter
- W18.2XXSFall in (into) shower or empty bathtub, sequela
- W65Accidental drowning and submersion while in bath-tub
- W65.XXXAAccidental drowning and submersion while in bath-tub, initial encounter
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead W16.21
2 child codes. Green means billable.