DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

W31 Contact with other and unspecified machinery

  • Header · not billable
  • Codes take a 7th character

W31 is not billable. The category heads 27 billable codes in FY2027, grouped under 6 subdivisions. Its codes take a 7th character, so none is complete with fewer than 7 characters.

Billable codes
27
Subdivisions
6
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
0

Codes in W31

  1. W31.0
    Contact with mining and earth-drilling machinery +7th: A D S
    Needs 7th characterExempt
    Inclusion terms 4

    Inclusion terms

    • Contact with bore or drill (land) (seabed)
    • Contact with shaft hoist
    • Contact with shaft lift
    • Contact with undercutter
  2. W31.1
    Contact with metalworking machines +7th: A D S
    Needs 7th characterExempt
    Inclusion terms 9

    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
  3. W31.2
    Contact with powered woodworking and forming machines +7th: A D S
    Needs 7th characterExempt
    Inclusion terms 8, Excludes1 1

    Inclusion terms

    • Contact with band saw
    • Contact with bench saw
    • Contact with circular saw
    • Contact with molding machine
    • Contact with overhead plane
    • Contact with powered saw
    • Contact with radial saw
    • Contact with sander

    Excludes1

    • nonpowered woodworking tools (W27.0) W27.0
  4. W31.3
    Contact with prime movers +7th: A D S
    Needs 7th characterExempt
    Inclusion terms 4

    Inclusion terms

    • Contact with gas turbine
    • Contact with internal combustion engine
    • Contact with steam engine
    • Contact with water driven turbine
  5. W31.8
    Contact with other specified machinery
    Header
  6. W31.81
    Contact with recreational machinery +7th: A D S
    Needs 7th characterExempt
    Inclusion terms 1

    Inclusion terms

    • Contact with roller coaster
  7. W31.82
    Contact with other commercial machinery +7th: A D S
    Needs 7th characterExempt
    Inclusion terms 5, Excludes1 2

    Inclusion terms

    • Contact with commercial electric fan
    • Contact with commercial kitchen appliances
    • Contact with commercial powered dryer (clothes) (powered) (spin)
    • Contact with commercial washing-machine
    • Contact with commercial sewing machine

    Excludes1

    • contact with household machinery (W29.-) W29
    • contact with powered lawn mower (W28) W28
  8. W31.83
    Contact with special construction vehicle in stationary use +7th: A D S
    Needs 7th characterExempt
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Contact with special construction vehicle under repair, not on public roadway

    Excludes1

    • special construction vehicle accident (V01-V99) V01 V99
  9. W31.89
    Contact with other specified machinery +7th: A D S
    Needs 7th characterExempt
  10. W31.9
    Contact with unspecified machinery +7th: A D S
    Needs 7th characterExempt
    Inclusion terms 1

    Inclusion terms

    • Contact with machinery NOS

Sources of each column. Rows marked +7th need a 7th character: pick one to build the full code; its code card has its own flags.

Instructions

At W31

Excludes1

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

Notes that also apply

Block W20-W49 instructions (Excludes1 4): printed on the block page.

Chapter 20 instructions (Notes 1): printed on the chapter 20 page.

7th characters

7th characters for W31 defined here

The appropriate 7th character is to be added to each code from category W31

7th characters for W31
7thMeaning (NCHS)
Ainitial encounter
Dsubsequent encounter
Ssequela

A code that takes a 7th character is invalid without it; the placeholder X fills a code shorter than 6 characters (Official Guidelines I.A.5). How 7th characters work.

Hierarchy