ICD-10-CM 2027 diagnosis code

W50Accidental hit, strike, kick, twist, bite or scratch by another person

Not billable — use a more specific code

W50 is a header code, so it can't be reported by itself. Choose one of the 5 more specific codes beneath it.Short description: Acc hit, strk, kick, twist, bite or scratch by another prsn

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 W50

W50 is the ICD-10-CM diagnosis code for accidental hit, strike, kick, twist, bite or scratch by another person. It belongs to block W50-W64 (exposure to animate mechanical forces) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: W50.0 (person), W50.1 (person), W50.2 (person), W50.3 (person) and W50.4 (person).

Don't report W50 together with the conditions in its Excludes1 note: assault by bodily force (Y04) and struck by objects (W20-W22).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under W50

Coding notes

IncludesFurther defines the content of the category

hit, strike, kick, twist, bite, or scratch by another person NOS

Excludes1Not coded here — never report together with this code

assault by bodily force (Y04)
struck by objects (W20-W22)

Notes that apply from higher levels

Instructions written at a parent level also apply to W50.

Broader instructions also apply from W50-W64 Exposure to animate mechanical forces and Chapter 20: External causes of morbidity.

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 W50

Is W50 billable?: No. W50 is a header code. Report one of its more specific subcodes instead.