| S99.91 | Unspecified injury of ankle | NON-BILLABLE CODE |
| S99.911 | Unspecified injury of right ankle | NON-BILLABLE CODE |
| S99.911A | Unspecified injury of right ankle, initial encounter | BILLABLE CODE |
| S99.911D | Unspecified injury of right ankle, subsequent encounter | BILLABLE CODE |
| S99.911S | Unspecified injury of right ankle, sequela | BILLABLE CODE |
| S99.912 | Unspecified injury of left ankle | NON-BILLABLE CODE |
| S99.912A | Unspecified injury of left ankle, initial encounter | BILLABLE CODE |
| S99.912D | Unspecified injury of left ankle, subsequent encounter | BILLABLE CODE |
| S99.912S | Unspecified injury of left ankle, sequela | BILLABLE CODE |
| S99.919 | Unspecified injury of unspecified ankle | NON-BILLABLE CODE |
| S99.919A | Unspecified injury of unspecified ankle, initial encounter | BILLABLE CODE |
| S99.919D | Unspecified injury of unspecified ankle, subsequent encounter | BILLABLE CODE |
| S99.919S | Unspecified injury of unspecified ankle, sequela | BILLABLE CODE |
| S99.92 | Unspecified injury of foot | NON-BILLABLE CODE |
| S99.921 | Unspecified injury of right foot | NON-BILLABLE CODE |
| S99.921A | Unspecified injury of right foot, initial encounter | BILLABLE CODE |
| S99.921D | Unspecified injury of right foot, subsequent encounter | BILLABLE CODE |
| S99.921S | Unspecified injury of right foot, sequela | BILLABLE CODE |
| S99.922 | Unspecified injury of left foot | NON-BILLABLE CODE |
| S99.922A | Unspecified injury of left foot, initial encounter | BILLABLE CODE |
| S99.922D | Unspecified injury of left foot, subsequent encounter | BILLABLE CODE |
| S99.922S | Unspecified injury of left foot, sequela | BILLABLE CODE |
| S99.929 | Unspecified injury of unspecified foot | NON-BILLABLE CODE |
| S99.929A | Unspecified injury of unspecified foot, initial encounter | BILLABLE CODE |
| S99.929D | Unspecified injury of unspecified foot, subsequent encounter | BILLABLE CODE |
| S99.929S | Unspecified injury of unspecified foot, sequela | BILLABLE CODE |
