ICD-10-CM 2027 diagnosis code
W21.39XDStruck by other sports foot wear, subsequent encounter
W21.39XD is a valid, billable ICD-10-CM code for struck by other sports foot wear, subsequent encounter. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
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 W21.39XD
W21.39XD is the ICD-10-CM diagnosis code for struck by other sports foot wear, subsequent encounter. It belongs to category W21 (striking against or struck by sports equipment), 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 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 E917.0 (striking against or struck accidentally by objects or persons in sports).
7th character
Dsubsequent encounter
Other encounter types for W21.39:
Notes that apply from higher levels
Instructions written at a parent level also apply to W21.39XD.
Broader instructions also apply from W20-W49 Exposure to inanimate mechanical forces and Chapter 20: External causes of morbidity.
ICD-9-CM equivalent
Converter →- E917.0Striking against or struck accidentally by objects or persons in sportsapproximate
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 W21.39XD
Is W21.39XD billable?
- Yes. W21.39XD 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 W21.39XD 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 W21.39XD be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict W21.39XD as a principal diagnosis.
Is W21.39XD a CC or MCC?
- No. W21.39XD is neither a CC nor an MCC under MS-DRG v44.0.
What is the ICD-9 code for W21.39XD?
- The CMS General Equivalence Mappings map W21.39XD to ICD-9-CM E917.0.