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ICD-10-CM 2027 diagnosis code

W22.042DStriking against wall of swimming pool causing other injury, subsequent encounter

✓ Billable / specificRequires 7th character

W22.042D is a valid, billable ICD-10-CM code for striking against wall of swimming pool causing other injury, subsequent encounter. 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, subs

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 W22.042D

W22.042D is the ICD-10-CM diagnosis code for striking against wall of swimming pool causing other injury, subsequent encounter. 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 "D" means subsequent encounter: use it for encounters after active treatment, while the patient is healing or recovering.

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

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 E917.4 (striking against or struck accidentally by other stationary object without subsequent fall).

7th character

Dsubsequent encounter

Other encounter types for W22.042:

Notes that apply from higher levels

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

› 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 →
  • E917.4Striking against or struck accidentally by other stationary object without subsequent fallapproximate

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 W22.042D

Is W22.042D billable?

Yes. W22.042D is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

What does the "D" at the end of W22.042D mean?

It is the 7th character for subsequent encounter. Per the official guidelines, use it for encounters after active treatment, while the patient is healing or recovering.

Can W22.042D be used as a principal diagnosis?

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

Is W22.042D a CC or MCC?

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

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

The CMS General Equivalence Mappings map W22.042D to ICD-9-CM E917.4.