| S81.031 | Puncture wound without foreign body, right knee | NON-BILLABLE CODE |
| S81.031A | Puncture wound without foreign body, right knee, initial encounter | BILLABLE CODE |
| S81.031D | Puncture wound without foreign body, right knee, subsequent encounter | BILLABLE CODE |
| S81.031S | Puncture wound without foreign body, right knee, sequela | BILLABLE CODE |
| S81.032 | Puncture wound without foreign body, left knee | NON-BILLABLE CODE |
| S81.032A | Puncture wound without foreign body, left knee, initial encounter | BILLABLE CODE |
| S81.032D | Puncture wound without foreign body, left knee, subsequent encounter | BILLABLE CODE |
| S81.032S | Puncture wound without foreign body, left knee, sequela | BILLABLE CODE |
| S81.039 | Puncture wound without foreign body, unspecified knee | NON-BILLABLE CODE |
| S81.039A | Puncture wound without foreign body, unspecified knee, initial encounter | BILLABLE CODE |
| S81.039D | Puncture wound without foreign body, unspecified knee, subsequent encounter | BILLABLE CODE |
| S81.039S | Puncture wound without foreign body, unspecified knee, sequela | BILLABLE CODE |
