| M17 | Osteoarthritis of knee | NON-BILLABLE CODE |
| M17.0 | Bilateral primary osteoarthritis of knee | BILLABLE CODE |
| M17.1 | Unilateral primary osteoarthritis of knee | NON-BILLABLE CODE |
| M17.11 | Unilateral primary osteoarthritis, right knee | BILLABLE CODE |
| M17.12 | Unilateral primary osteoarthritis, left knee | BILLABLE CODE |
| M17.2 | Bilateral post-traumatic osteoarthritis of knee | BILLABLE CODE |
| M17.3 | Unilateral post-traumatic osteoarthritis of knee | NON-BILLABLE CODE |
| M17.30 | Unilateral post-traumatic osteoarthritis, unspecified knee | BILLABLE CODE |
| M17.31 | Unilateral post-traumatic osteoarthritis, right knee | BILLABLE CODE |
| M17.32 | Unilateral post-traumatic osteoarthritis, left knee | BILLABLE CODE |
| M17.4 | Other bilateral secondary osteoarthritis of knee | BILLABLE CODE |
| M17.5 | Other unilateral secondary osteoarthritis of knee | BILLABLE CODE |
| M17.9 | Osteoarthritis of knee, unspecified | BILLABLE CODE |
