| S83.40 | Sprain of unspecified collateral ligament of knee | NON-BILLABLE CODE |
| S83.401 | Sprain of unspecified collateral ligament of right knee | NON-BILLABLE CODE |
| S83.401A | Sprain of unspecified collateral ligament of right knee, initial encounter | BILLABLE CODE |
| S83.401D | Sprain of unspecified collateral ligament of right knee, subsequent encounter | BILLABLE CODE |
| S83.401S | Sprain of unspecified collateral ligament of right knee, sequela | BILLABLE CODE |
| S83.402 | Sprain of unspecified collateral ligament of left knee | NON-BILLABLE CODE |
| S83.402A | Sprain of unspecified collateral ligament of left knee, initial encounter | BILLABLE CODE |
| S83.402D | Sprain of unspecified collateral ligament of left knee, subsequent encounter | BILLABLE CODE |
| S83.402S | Sprain of unspecified collateral ligament of left knee, sequela | BILLABLE CODE |
| S83.409 | Sprain of unspecified collateral ligament of unspecified knee | NON-BILLABLE CODE |
| S83.409A | Sprain of unspecified collateral ligament of unspecified knee, initial encounter | BILLABLE CODE |
| S83.409D | Sprain of unspecified collateral ligament of unspecified knee, subsequent encounter | BILLABLE CODE |
| S83.409S | Sprain of unspecified collateral ligament of unspecified knee, sequela | BILLABLE CODE |
| S83.41 | Sprain of medial collateral ligament of knee | NON-BILLABLE CODE |
| S83.411 | Sprain of medial collateral ligament of right knee | NON-BILLABLE CODE |
| S83.411A | Sprain of medial collateral ligament of right knee, initial encounter | BILLABLE CODE |
| S83.411D | Sprain of medial collateral ligament of right knee, subsequent encounter | BILLABLE CODE |
| S83.411S | Sprain of medial collateral ligament of right knee, sequela | BILLABLE CODE |
| S83.412 | Sprain of medial collateral ligament of left knee | NON-BILLABLE CODE |
| S83.412A | Sprain of medial collateral ligament of left knee, initial encounter | BILLABLE CODE |
| S83.412D | Sprain of medial collateral ligament of left knee, subsequent encounter | BILLABLE CODE |
| S83.412S | Sprain of medial collateral ligament of left knee, sequela | BILLABLE CODE |
| S83.419 | Sprain of medial collateral ligament of unspecified knee | NON-BILLABLE CODE |
| S83.419A | Sprain of medial collateral ligament of unspecified knee, initial encounter | BILLABLE CODE |
| S83.419D | Sprain of medial collateral ligament of unspecified knee, subsequent encounter | BILLABLE CODE |
| S83.419S | Sprain of medial collateral ligament of unspecified knee, sequela | BILLABLE CODE |
| S83.42 | Sprain of lateral collateral ligament of knee | NON-BILLABLE CODE |
| S83.421 | Sprain of lateral collateral ligament of right knee | NON-BILLABLE CODE |
| S83.421A | Sprain of lateral collateral ligament of right knee, initial encounter | BILLABLE CODE |
| S83.421D | Sprain of lateral collateral ligament of right knee, subsequent encounter | BILLABLE CODE |
| S83.421S | Sprain of lateral collateral ligament of right knee, sequela | BILLABLE CODE |
| S83.422 | Sprain of lateral collateral ligament of left knee | NON-BILLABLE CODE |
| S83.422A | Sprain of lateral collateral ligament of left knee, initial encounter | BILLABLE CODE |
| S83.422D | Sprain of lateral collateral ligament of left knee, subsequent encounter | BILLABLE CODE |
| S83.422S | Sprain of lateral collateral ligament of left knee, sequela | BILLABLE CODE |
| S83.429 | Sprain of lateral collateral ligament of unspecified knee | NON-BILLABLE CODE |
| S83.429A | Sprain of lateral collateral ligament of unspecified knee, initial encounter | BILLABLE CODE |
| S83.429D | Sprain of lateral collateral ligament of unspecified knee, subsequent encounter | BILLABLE CODE |
| S83.429S | Sprain of lateral collateral ligament of unspecified knee, sequela | BILLABLE CODE |
