| M18.0 |
Bilateral primary osteoarthritis of first carpometacarpal joints |
| M18.1 |
Unilateral primary osteoarthritis of first carpometacarpal joint |
| M18.10 |
Unilateral primary osteoarthritis of first carpometacarpal joint, unspecified hand |
| M18.11 |
Unilateral primary osteoarthritis of first carpometacarpal joint, right hand |
| M18.12 |
Unilateral primary osteoarthritis of first carpometacarpal joint, left hand |
| M18.2 |
Bilateral post-traumatic osteoarthritis of first carpometacarpal joints |
| M18.3 |
Unilateral post-traumatic osteoarthritis of first carpometacarpal joint |
| M18.30 |
Unilateral post-traumatic osteoarthritis of first carpometacarpal joint, unspecified hand |
| M18.31 |
Unilateral post-traumatic osteoarthritis of first carpometacarpal joint, right hand |
| M18.32 |
Unilateral post-traumatic osteoarthritis of first carpometacarpal joint, left hand |
| M18.4 |
Other bilateral secondary osteoarthritis of first carpometacarpal joints |
| M18.5 |
Other unilateral secondary osteoarthritis of first carpometacarpal joint |
| M18.50 |
Other unilateral secondary osteoarthritis of first carpometacarpal joint, unspecified hand |
| M18.51 |
Other unilateral secondary osteoarthritis of first carpometacarpal joint, right hand |
| M18.52 |
Other unilateral secondary osteoarthritis of first carpometacarpal joint, left hand |
| M18.9 |
Osteoarthritis of first carpometacarpal joint, unspecified |