DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

W18 Other slipping, tripping and stumbling and falls

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

W18 is not billable. The category heads 45 billable codes in FY2027, grouped under 5 subdivisions. Its codes take a 7th character, so none is complete with fewer than 7 characters.

Billable codes
45
Subdivisions
5
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
0

Codes in W18

  1. W18.0
    Fall due to bumping against object
    Header
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Striking against object with subsequent fall

    Excludes1

    • fall on same level due to slipping, tripping, or stumbling with subsequent striking against object (W01.1-) W01.1
  2. W18.00
    Striking against unspecified object with subsequent fall +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  3. W18.01
    Striking against sports equipment with subsequent fall +7th: A D S
    Needs 7th characterExempt
  4. W18.02
    Striking against glass with subsequent fall +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  5. W18.09
    Striking against other object with subsequent fall +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  6. W18.1
    Fall from or off toilet
    Header
  7. W18.11
    Fall from or off toilet without subsequent striking against object +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Fall from (off) toilet NOS
  8. W18.12
    Fall from or off toilet with subsequent striking against object +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  9. W18.2
    Fall in (into) shower or empty bathtub +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Excludes1 1

    Excludes1

    • fall in full bathtub causing drowning or submersion (W16.21-) W16.21
  10. W18.3
    Other and unspecified fall on same level
    Header
  11. W18.30
    Fall on same level, unspecified +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  12. W18.31
    Fall on same level due to stepping on an object +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Fall on same level due to stepping on an animal

    Excludes1

    • slipping, tripping and stumbling without fall due to stepping on animal (W18.41) W18.41
  13. W18.39
    Other fall on same level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  14. W18.4
    Slipping, tripping and stumbling without falling
    Header
    Excludes1 1

    Excludes1

    • collision with another person without fall (W51) W51
  15. W18.40
    Slipping, tripping and stumbling without falling, unspecified +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  16. W18.41
    Slipping, tripping and stumbling without falling due to stepping on object +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Slipping, tripping and stumbling without falling due to stepping on animal

    Excludes1

    • slipping, tripping and stumbling with fall due to stepping on animal (W18.31) W18.31
  17. W18.42
    Slipping, tripping and stumbling without falling due to stepping into hole or opening +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  18. W18.43
    Slipping, tripping and stumbling without falling due to stepping from one level to another +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  19. W18.49
    Other slipping, tripping and stumbling without falling +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters

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

Notes that also apply

Block W00-W19 instructions (Excludes1 5, Excludes2 3): printed on the block page.

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

7th characters

7th characters for W18 defined here

The appropriate 7th character is to be added to each code from category W18

7th characters for W18
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