ICD-10-CM 2027 diagnosis code
W16.511SJumping or diving into swimming pool striking water surface causing drowning and submersion, sequela
W16.511S is a valid, billable ICD-10-CM code for jumping or diving into swimming pool striking water surface causing drowning and submersion, sequela. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Jump/div into swim pool strk surfc causing drown, sequela
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 W16.511S
W16.511S is the ICD-10-CM diagnosis code for jumping or diving into swimming pool striking water surface causing drowning and submersion, sequela. 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 billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
The 7th character "S" means sequela: use it for complications or conditions that arise as a direct result of the original condition.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as E929.3 (late effects of accidental fall).
7th character
Ssequela
Other encounter types for W16.511:
Notes that apply from higher levels
Instructions written at a parent level also apply to W16.511S.
› From W16.511 Jumping or diving into swimming pool striking water surface causing drowning and submersion
- drowning and submersion while in swimming pool without jumping or diving (W67)
Broader instructions also apply from W00-W19 Slipping, tripping, stumbling and falls and Chapter 20: External causes of morbidity.
ICD-9-CM equivalent
Converter →- E929.3Late effects of accidental fallapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
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 W16.511S
Is W16.511S billable?
- Yes. W16.511S is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
What does the "S" at the end of W16.511S mean?
- It is the 7th character for sequela. Per the official guidelines, use it for complications or conditions that arise as a direct result of the original condition.
Can W16.511S be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict W16.511S as a principal diagnosis.
Is W16.511S a CC or MCC?
- No. W16.511S is neither a CC nor an MCC under MS-DRG v44.0.
What is the ICD-9 code for W16.511S?
- The CMS General Equivalence Mappings map W16.511S to ICD-9-CM E929.3.