W31.1XXA is the authoritative medical code for Contact with metalworking machines, initial encounter. This classification is used in medical billing and clinical recording to specify the clinical criteria for contact with metalworking machines, initial encounter (ICD-10-CM W31.1XXA), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Contact with metalworking machines, initial encounter is a billable ICD-10-CM diagnosis code W31.1A. Inclusion terms: Contact with abrasive wheel; Contact with forging machine; Contact with lathe; Contact with mechanical shears; Contact with metal drilling machine; Contact with milling machine; Contact with power press; Contact with rolling-mill; Contact with metal sawing machine. Excludes1 (not coded here): 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; assault X92-Y09; contact or collision with animals or persons W50-W64; exposure to inanimate mechanical forces involving military or war operations (Y36.-, Y37.-); intentional self-harm X71-X83. 7th character: The appropriate 7th character is to be added to each code from category W31.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for W31.1XXA in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Contact with abrasive wheel
- Contact with forging machine
- Contact with lathe
- Contact with mechanical shears
- Contact with metal drilling machine
- Contact with milling machine
- Contact with power press
- Contact with rolling-mill
- Contact with metal sawing machine
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- 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
- assault X92-Y09
- contact or collision with animals or persons W50-W64
- exposure to inanimate mechanical forces involving military or war operations (Y36.-, Y37.-)
- intentional self-harm X71-X83
Frequently Asked Questions (FAQ) & Clinical Guidance
Does W31.1XXA require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category W31.
What can't be coded together with W31.1XXA?
Per official ICD-10-CM Excludes1 instructions, W31.1XXA must not be reported together with: 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); assault (X92-Y09).
What conditions are included under W31.1XXA?
Contact with metalworking machines, initial encounter includes: Contact with abrasive wheel; Contact with forging machine; Contact with lathe; Contact with mechanical shears; Contact with metal drilling machine.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to W31.1XXA in its code family, with their registry titles.
- W31 — Contact with other and unspecified machinery
- W31.0 — Contact with mining and earth-drilling machinery
- W31.0XXA — Contact with mining and earth-drilling machinery, initial encounter
- W31.0XXD — Contact with mining and earth-drilling machinery, subsequent encounter
- W31.0XXS — Contact with mining and earth-drilling machinery, sequela
- W31.1 — Contact with metalworking machines
- W31.1XXD — Contact with metalworking machines, subsequent encounter
- W31.1XXS — Contact with metalworking machines, sequela
- W31.2 — Contact with powered woodworking and forming machines
- W31.2XXA — Contact with powered woodworking and forming machines, initial encounter
View all 37 codes in the W31 family