ICD-10-CM 2027 diagnosis code
W74.XXXSUnspecified cause of accidental drowning and submersion, sequela
W74.XXXS is a valid, billable ICD-10-CM code for unspecified cause of accidental drowning and submersion, sequela. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Unsp cause of accidental drowning and submersion, 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 W74.XXXS
W74.XXXS is the ICD-10-CM diagnosis code for unspecified cause of accidental drowning and submersion, sequela. It belongs to category W74 (unspecified cause of accidental drowning and submersion), block W65-W74 (accidental non-transport drowning and submersion) 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 E929.8 (late effects of other accidents).
7th character
Ssequela
Other encounter types for W74:
Notes that apply from higher levels
Instructions written at a parent level also apply to W74.XXXS.
Broader instructions also apply from W65-W74 Accidental non-transport drowning and submersion and Chapter 20: External causes of morbidity.
ICD-9-CM equivalent
Converter →- E929.8Late effects of other accidentsapproximate
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 W74.XXXS
Is W74.XXXS billable?
- Yes. W74.XXXS 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 W74.XXXS 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 W74.XXXS be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict W74.XXXS as a principal diagnosis.
Is W74.XXXS a CC or MCC?
- No. W74.XXXS is neither a CC nor an MCC under MS-DRG v44.0.
What is the ICD-9 code for W74.XXXS?
- The CMS General Equivalence Mappings map W74.XXXS to ICD-9-CM E929.8.