| W18.40 | Slipping, tripping and stumbling without falling, unspecified | NON-BILLABLE CODE |
| W18.40XA | Slipping, tripping and stumbling without falling, unspecified, initial encounter | BILLABLE CODE |
| W18.40XD | Slipping, tripping and stumbling without falling, unspecified, subsequent encounter | BILLABLE CODE |
| W18.40XS | Slipping, tripping and stumbling without falling, unspecified, sequela | BILLABLE CODE |
| W18.41 | Slipping, tripping and stumbling without falling due to stepping on object | NON-BILLABLE CODE |
| W18.41XA | Slipping, tripping and stumbling without falling due to stepping on object, initial encounter | BILLABLE CODE |
| W18.41XD | Slipping, tripping and stumbling without falling due to stepping on object, subsequent encounter | BILLABLE CODE |
| W18.41XS | Slipping, tripping and stumbling without falling due to stepping on object, sequela | BILLABLE CODE |
| W18.42 | Slipping, tripping and stumbling without falling due to stepping into hole or opening | NON-BILLABLE CODE |
| W18.42XA | Slipping, tripping and stumbling without falling due to stepping into hole or opening, initial encounter | BILLABLE CODE |
| W18.42XD | Slipping, tripping and stumbling without falling due to stepping into hole or opening, subsequent encounter | BILLABLE CODE |
| W18.42XS | Slipping, tripping and stumbling without falling due to stepping into hole or opening, sequela | BILLABLE CODE |
| W18.43 | Slipping, tripping and stumbling without falling due to stepping from one level to another | NON-BILLABLE CODE |
| W18.43XA | Slipping, tripping and stumbling without falling due to stepping from one level to another, initial encounter | BILLABLE CODE |
| W18.43XD | Slipping, tripping and stumbling without falling due to stepping from one level to another, subsequent encounter | BILLABLE CODE |
| W18.43XS | Slipping, tripping and stumbling without falling due to stepping from one level to another, sequela | BILLABLE CODE |
| W18.49 | Other slipping, tripping and stumbling without falling | NON-BILLABLE CODE |
| W18.49XA | Other slipping, tripping and stumbling without falling, initial encounter | BILLABLE CODE |
| W18.49XD | Other slipping, tripping and stumbling without falling, subsequent encounter | BILLABLE CODE |
| W18.49XS | Other slipping, tripping and stumbling without falling, sequela | BILLABLE CODE |
