ICD-10-CM 2027 diagnosis code
W20.1XXDStruck by object due to collapse of building, subsequent encounter
W20.1XXD is a valid, billable ICD-10-CM code for struck by object due to collapse of building, subsequent encounter. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Struck by object due to collapse of building, subs encntr
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 W20.1XXD
W20.1XXD is the ICD-10-CM diagnosis code for struck by object due to collapse of building, subsequent encounter. It belongs to category W20 (struck by thrown, projected or falling object), 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.
Code first any associated: cataclysm (X34-X39) and lightning strike (T75.00).
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 E916 (struck accidentally by falling object).
7th character
Dsubsequent encounter
Other encounter types for W20.1:
Notes that apply from higher levels
Instructions written at a parent level also apply to W20.1XXD.
› From W20 Struck by thrown, projected or falling object
Broader instructions also apply from W20-W49 Exposure to inanimate mechanical forces and Chapter 20: External causes of morbidity.
ICD-9-CM equivalent
Converter →- E916Struck accidentally by falling objectapproximate
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 W20.1XXD
Is W20.1XXD billable?
- Yes. W20.1XXD 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 W20.1XXD 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 W20.1XXD be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict W20.1XXD as a principal diagnosis.
Is W20.1XXD a CC or MCC?
- No. W20.1XXD is neither a CC nor an MCC under MS-DRG v44.0.
What is the ICD-9 code for W20.1XXD?
- The CMS General Equivalence Mappings map W20.1XXD to ICD-9-CM E916.