| M23.60 | Other spontaneous disruption of unspecified ligament of knee | NON-BILLABLE CODE |
| M23.601 | Other spontaneous disruption of unspecified ligament of right knee | BILLABLE CODE |
| M23.602 | Other spontaneous disruption of unspecified ligament of left knee | BILLABLE CODE |
| M23.609 | Other spontaneous disruption of unspecified ligament of unspecified knee | BILLABLE CODE |
| M23.61 | Other spontaneous disruption of anterior cruciate ligament of knee | NON-BILLABLE CODE |
| M23.611 | Other spontaneous disruption of anterior cruciate ligament of right knee | BILLABLE CODE |
| M23.612 | Other spontaneous disruption of anterior cruciate ligament of left knee | BILLABLE CODE |
| M23.619 | Other spontaneous disruption of anterior cruciate ligament of unspecified knee | BILLABLE CODE |
| M23.62 | Other spontaneous disruption of posterior cruciate ligament of knee | NON-BILLABLE CODE |
| M23.621 | Other spontaneous disruption of posterior cruciate ligament of right knee | BILLABLE CODE |
| M23.622 | Other spontaneous disruption of posterior cruciate ligament of left knee | BILLABLE CODE |
| M23.629 | Other spontaneous disruption of posterior cruciate ligament of unspecified knee | BILLABLE CODE |
| M23.63 | Other spontaneous disruption of medial collateral ligament of knee | NON-BILLABLE CODE |
| M23.631 | Other spontaneous disruption of medial collateral ligament of right knee | BILLABLE CODE |
| M23.632 | Other spontaneous disruption of medial collateral ligament of left knee | BILLABLE CODE |
| M23.639 | Other spontaneous disruption of medial collateral ligament of unspecified knee | BILLABLE CODE |
| M23.64 | Other spontaneous disruption of lateral collateral ligament of knee | NON-BILLABLE CODE |
| M23.641 | Other spontaneous disruption of lateral collateral ligament of right knee | BILLABLE CODE |
| M23.642 | Other spontaneous disruption of lateral collateral ligament of left knee | BILLABLE CODE |
| M23.649 | Other spontaneous disruption of lateral collateral ligament of unspecified knee | BILLABLE CODE |
| M23.67 | Other spontaneous disruption of capsular ligament of knee | NON-BILLABLE CODE |
| M23.671 | Other spontaneous disruption of capsular ligament of right knee | BILLABLE CODE |
| M23.672 | Other spontaneous disruption of capsular ligament of left knee | BILLABLE CODE |
| M23.679 | Other spontaneous disruption of capsular ligament of unspecified knee | BILLABLE CODE |
