| M180 |
Primary arthrosis of first carpometacarpal joints, bilateral |
| M181 |
Other primary arthrosis of first carpometacarpal joint |
| M182 |
Post-traumatic arthrosis of first carpometacarpal joints, bilateral |
| M183 |
Other post-traumatic arthrosis of first carpometacarpal joint |
| M184 |
Other secondary arthrosis of first carpometacarpal joints, bilateral |
| M185 |
Other secondary arthrosis of first carpometacarpal joint |
| M189 |
Arthrosis of first carpometacarpal joint, unspecified |