W31

W31: Contact with other and unspecified machinery

Non-billable headerICD-10-CM

W31 is a non-billable header ICD-10-CM code for contact with other and unspecified machinery. 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 W31

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

contact with agricultural machinery (W30.-)
contact with machinery in transport under own power or being towed by a vehicle (V01-V99)
exposure to electric current (W86)

Other codes that can never be billed with W31

Their own Excludes1 notes name this code, so the conflict is not listed above.

V83Occupant of special vehicle mainly used on industrial premises injured in transport accident
V85Occupant of special construction vehicle injured in transport accident
V86Occupant of special all-terrain or other off-road motor vehicle, injured in transport accident
W09Fall on and from playground equipment
W20Struck by thrown, projected or falling object
W23Caught, crushed, jammed or pinched in or between objects
W29Contact with other powered hand tools and household machinery

Risk adjustment

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

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead W31

6 child codes. Green means billable.