| S80879D | Other superficial bite, unspecified lower leg, subsequent encounter |
| S80879S | Other superficial bite, unspecified lower leg, sequela |
| S809 | Unspecified superficial injury of knee and lower leg |
| S8091 | Unspecified superficial injury of knee |
| S80911 | Unspecified superficial injury of right knee |
| S80911A | Unspecified superficial injury of right knee, initial encounter |
| S80911D | Unspecified superficial injury of right knee, subsequent encounter |
| S80911S | Unspecified superficial injury of right knee, sequela |
| S80912 | Unspecified superficial injury of left knee |
| S80912A | Unspecified superficial injury of left knee, initial encounter |
| S80912D | Unspecified superficial injury of left knee, subsequent encounter |
| S80912S | Unspecified superficial injury of left knee, sequela |
| S80919 | Unspecified superficial injury of unspecified knee |
| S80919A | Unspecified superficial injury of unspecified knee, initial encounter |
| S80919D | Unspecified superficial injury of unspecified knee, subsequent encounter |
| S80919S | Unspecified superficial injury of unspecified knee, sequela |
| S8092 | Unspecified superficial injury of lower leg |
| S80921 | Unspecified superficial injury of right lower leg |
| S80921A | Unspecified superficial injury of right lower leg, initial encounter |
| S80921D | Unspecified superficial injury of right lower leg, subsequent encounter |
| S80921S | Unspecified superficial injury of right lower leg, sequela |
| S80922 | Unspecified superficial injury of left lower leg |
| S80922A | Unspecified superficial injury of left lower leg, initial encounter |
| S80922D | Unspecified superficial injury of left lower leg, subsequent encounter |
| S80922S | Unspecified superficial injury of left lower leg, sequela |
| S80929 | Unspecified superficial injury of unspecified lower leg |
| S80929A | Unspecified superficial injury of unspecified lower leg, initial encounter |
| S80929D | Unspecified superficial injury of unspecified lower leg, subsequent encounter |
| S80929S | Unspecified superficial injury of unspecified lower leg, sequela |
| S81 | Open wound of knee and lower leg |
| S810 | Open wound of knee |
| S8100 | Unspecified open wound of knee |
| S81001 | Unspecified open wound, right knee |
| S81001A | Unspecified open wound, right knee, initial encounter |
| S81001D | Unspecified open wound, right knee, subsequent encounter |
| S81001S | Unspecified open wound, right knee, sequela |
| S81002 | Unspecified open wound, left knee |
| S81002A | Unspecified open wound, left knee, initial encounter |
| S81002D | Unspecified open wound, left knee, subsequent encounter |
| S81002S | Unspecified open wound, left knee, sequela |
| S81009 | Unspecified open wound, unspecified knee |
| S81009A | Unspecified open wound, unspecified knee, initial encounter |
| S81009D | Unspecified open wound, unspecified knee, subsequent encounter |
| S81009S | Unspecified open wound, unspecified knee, sequela |
| S8101 | Laceration without foreign body of knee |
| S81011 | Laceration without foreign body, right knee |
| S81011A | Laceration without foreign body, right knee, initial encounter |
| S81011D | Laceration without foreign body, right knee, subsequent encounter |
| S81011S | Laceration without foreign body, right knee, sequela |
| S81012 | Laceration without foreign body, left knee |