ICD-10-CM 2027 diagnosis code

W64Exposure to other animate mechanical forces

Not billable — use a more specific code

W64 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

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 W64

W64 is the ICD-10-CM diagnosis code for exposure to other animate mechanical forces. 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 3 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: W64.XXXA (initial encounter), W64.XXXD (subsequent encounter) and W64.XXXS (sequela).

Don't report W64 together with the conditions in its Excludes1 note: contact with venomous animal (T63.-).

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 W64

Coding notes

IncludesFurther defines the content of the category

exposure to nonvenomous animal NOS

Excludes1Not coded here — never report together with this code

contact with venomous animal (T63.-)

Notes that apply from higher levels

Instructions written at a parent level also apply to W64.

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

Alphabetic index entries

4 entries

Terms in the official ICD-10-CM index that lead to W64.

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 W64

Is W64 billable?: No. W64 is a header code. Report one of its more specific subcodes instead.