MCMedicalCodingSoftware
W49.9

W49.9: Exposure to other inanimate mechanical forces

Non-billable headerICD-10-CM

W49.9 is a non-billable header ICD-10-CM code for exposure to other inanimate mechanical forces. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category W49

A
initial encounter
D
subsequent encounter
S
sequela

Excludes1 inherited from the categories above W49.9

A category’s note binds every code beneath it.

Written on W49: Exposure to other inanimate mechanical forces

  • exposure to inanimate mechanical forces involving military or war operations (Y36.-, Y37.-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Infrasound waves(causing injury)
  • Vibration(causing injury)
  • Exposure›G-forces(abnormal)
  • Exposure›gravitational forces(abnormal)
  • Exposure›high-pressure jet(hydraulic) (pneumatic)
  • Exposure›hydraulic jet
  • Exposure›inanimate mechanical force
  • Exposure›jet, high-pressure(hydraulic) (pneumatic)
  • Exposure›mechanical forces NEC
  • Exposure›pneumatic jet
  • Exposure›vibration
  • Exposure›mechanical forces NEC›inanimate NEC

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead W49.9

3 child codes. Green means billable.

Other codes under W49

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.