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ICD-10-CM 2027 diagnosis code

W22.042SStriking against wall of swimming pool causing other injury, sequela

✓ Billable / specificPOA exemptRequires 7th character

W22.042S is a valid, billable ICD-10-CM code for striking against wall of swimming pool causing other injury, sequela. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Strike wall of swimming pool causing oth injury, 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 W22.042S

W22.042S is the ICD-10-CM diagnosis code for striking against wall of swimming pool causing other injury, sequela. It belongs to category W22 (striking against or struck by other objects), block W20-W49 (exposure to inanimate mechanical forces) 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 W22.042:

Notes that apply from higher levels

Instructions written at a parent level also apply to W22.042S.

› From W22.0 Striking against stationary object
Excludes1
  • striking against stationary sports equipment (W21.8)
› From W22 Striking against or struck by other objects
Excludes1
  • striking against or struck by object with subsequent fall (W18.09)

Broader instructions also apply from W20-W49 Exposure to inanimate mechanical forces 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

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about W22.042S

Is W22.042S billable?

Yes. W22.042S 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 W22.042S 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 W22.042S be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict W22.042S as a principal diagnosis.

Is W22.042S a CC or MCC?

No. W22.042S is neither a CC nor an MCC under MS-DRG v44.0.

What is the ICD-9 code for W22.042S?

The CMS General Equivalence Mappings map W22.042S to ICD-9-CM E929.8.