ICD-10-CM 2027 diagnosis code
W16.0Fall into swimming pool
W16.0 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About W16.0
W16.0 is the ICD-10-CM diagnosis code for fall into swimming pool. It belongs to category W16 (fall, jump or diving into water), block W00-W19 (slipping, tripping, stumbling and falls) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.
Within W16 (fall, jump or diving into water), W16.0 is specifically for fall into swimming pool. Related codes cover fall into natural body of water (W16.1), fall in (into) filled bathtub or bucket of water (W16.2), fall into other water (W16.3), fall into unspecified water (W16.4), jumping or diving into swimming pool (W16.5), jumping or diving into natural body of water (W16.6), jumping or diving from boat (W16.7), jumping or diving into other water (W16.8) and 1 more.
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
Don't report W16.0 together with the conditions in its Excludes1 note: fall into empty swimming pool (W17.3).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
7th character
The appropriate 7th character is to be added to each code from category W16
- W16.01Fall into swimming pool striking water surface
- W16.02Fall into swimming pool striking bottom
- W16.03Fall into swimming pool striking wall
- Ainitial encounter
- Dsubsequent encounter
- Ssequela
Coding notes
- Fall into swimming pool NOS
- fall into empty swimming pool (W17.3)
Notes that apply from higher levels
Instructions written at a parent level also apply to W16.0.
Broader instructions also apply from W00-W19 Slipping, tripping, stumbling and falls and Chapter 20: External causes of morbidity.
Codes whose notes reference W16.0
- W17.3Excludes1
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about W16.0
Is W16.0 billable?
- No. W16.0 is a header code. Report one of its more specific subcodes instead.