| S91.301 | Unspecified open wound, right foot | NON-BILLABLE CODE |
| S91.301A | Unspecified open wound, right foot, initial encounter | BILLABLE CODE |
| S91.301D | Unspecified open wound, right foot, subsequent encounter | BILLABLE CODE |
| S91.301S | Unspecified open wound, right foot, sequela | BILLABLE CODE |
| S91.302 | Unspecified open wound, left foot | NON-BILLABLE CODE |
| S91.302A | Unspecified open wound, left foot, initial encounter | BILLABLE CODE |
| S91.302D | Unspecified open wound, left foot, subsequent encounter | BILLABLE CODE |
| S91.302S | Unspecified open wound, left foot, sequela | BILLABLE CODE |
| S91.309 | Unspecified open wound, unspecified foot | NON-BILLABLE CODE |
| S91.309A | Unspecified open wound, unspecified foot, initial encounter | BILLABLE CODE |
| S91.309D | Unspecified open wound, unspecified foot, subsequent encounter | BILLABLE CODE |
| S91.309S | Unspecified open wound, unspecified foot, sequela | BILLABLE CODE |
