| M15 | Polyosteoarthritis |
| M15.0 | Primary generalized (osteo)arthritis |
| M15.1 | Heberden's nodes (with arthropathy) |
| M15.2 | Bouchard's nodes (with arthropathy) |
| M15.3 | Secondary multiple arthritis |
| M15.4 | Erosive (osteo)arthritis |
| M15.8 | Other polyosteoarthritis |
| M15.9 | Polyosteoarthritis, unspecified |
| M16 | Osteoarthritis of hip |
| M16.0 | Bilateral primary osteoarthritis of hip |
| M16.1 | Unilateral primary osteoarthritis of hip |
| M16.10 | Unilateral primary osteoarthritis, unspecified hip |
| M16.11 | Unilateral primary osteoarthritis, right hip |
| M16.12 | Unilateral primary osteoarthritis, left hip |
| M16.2 | Bilateral osteoarthritis resulting from hip dysplasia |
| M16.3 | Unilateral osteoarthritis resulting from hip dysplasia |
| M16.30 | Unilateral osteoarthritis resulting from hip dysplasia, unspecified hip |
| M16.31 | Unilateral osteoarthritis resulting from hip dysplasia, right hip |
| M16.32 | Unilateral osteoarthritis resulting from hip dysplasia, left hip |
| M16.4 | Bilateral post-traumatic osteoarthritis of hip |
| M16.5 | Unilateral post-traumatic osteoarthritis of hip |
| M16.50 | Unilateral post-traumatic osteoarthritis, unspecified hip |
| M16.51 | Unilateral post-traumatic osteoarthritis, right hip |
| M16.52 | Unilateral post-traumatic osteoarthritis, left hip |
| M16.6 | Other bilateral secondary osteoarthritis of hip |
| M16.7 | Other unilateral secondary osteoarthritis of hip |
| M16.9 | Osteoarthritis of hip, unspecified |
| M17 | Osteoarthritis of knee |
| M17.0 | Bilateral primary osteoarthritis of knee |
| M17.1 | Unilateral primary osteoarthritis of knee |
| M17.10 | Unilateral primary osteoarthritis, unspecified knee |
| M17.11 | Unilateral primary osteoarthritis, right knee |
| M17.12 | Unilateral primary osteoarthritis, left knee |
| M17.2 | Bilateral post-traumatic osteoarthritis of knee |
| M17.3 | Unilateral post-traumatic osteoarthritis of knee |
| M17.30 | Unilateral post-traumatic osteoarthritis, unspecified knee |
| M17.31 | Unilateral post-traumatic osteoarthritis, right knee |
| M17.32 | Unilateral post-traumatic osteoarthritis, left knee |
| M17.4 | Other bilateral secondary osteoarthritis of knee |
| M17.5 | Other unilateral secondary osteoarthritis of knee |
| M17.9 | Osteoarthritis of knee, unspecified |
| M18 | Osteoarthritis of first carpometacarpal joint |
| 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 |
| M19 | Other and unspecified osteoarthritis |
| M19.0 | Primary osteoarthritis of other joints |
| M19.01 | Primary osteoarthritis, shoulder |
| M19.011 | Primary osteoarthritis, right shoulder |
| M19.012 | Primary osteoarthritis, left shoulder |
| M19.019 | Primary osteoarthritis, unspecified shoulder |
| M19.02 | Primary osteoarthritis, elbow |
| M19.021 | Primary osteoarthritis, right elbow |
| M19.022 | Primary osteoarthritis, left elbow |
| M19.029 | Primary osteoarthritis, unspecified elbow |
| M19.03 | Primary osteoarthritis, wrist |
| M19.031 | Primary osteoarthritis, right wrist |
| M19.032 | Primary osteoarthritis, left wrist |
| M19.039 | Primary osteoarthritis, unspecified wrist |
| M19.04 | Primary osteoarthritis, hand |
| M19.041 | Primary osteoarthritis, right hand |
| M19.042 | Primary osteoarthritis, left hand |
| M19.049 | Primary osteoarthritis, unspecified hand |
| M19.07 | Primary osteoarthritis ankle and foot |
| M19.071 | Primary osteoarthritis, right ankle and foot |
| M19.072 | Primary osteoarthritis, left ankle and foot |
| M19.079 | Primary osteoarthritis, unspecified ankle and foot |
| M19.1 | Post-traumatic osteoarthritis of other joints |
| M19.11 | Post-traumatic osteoarthritis, shoulder |
| M19.111 | Post-traumatic osteoarthritis, right shoulder |
| M19.112 | Post-traumatic osteoarthritis, left shoulder |
| M19.119 | Post-traumatic osteoarthritis, unspecified shoulder |
| M19.12 | Post-traumatic osteoarthritis, elbow |
| M19.121 | Post-traumatic osteoarthritis, right elbow |
| M19.122 | Post-traumatic osteoarthritis, left elbow |
| M19.129 | Post-traumatic osteoarthritis, unspecified elbow |
| M19.13 | Post-traumatic osteoarthritis, wrist |
| M19.131 | Post-traumatic osteoarthritis, right wrist |
| M19.132 | Post-traumatic osteoarthritis, left wrist |
| M19.139 | Post-traumatic osteoarthritis, unspecified wrist |
| M19.14 | Post-traumatic osteoarthritis, hand |
| M19.141 | Post-traumatic osteoarthritis, right hand |
| M19.142 | Post-traumatic osteoarthritis, left hand |
| M19.149 | Post-traumatic osteoarthritis, unspecified hand |
| M19.17 | Post-traumatic osteoarthritis, ankle and foot |
| M19.171 | Post-traumatic osteoarthritis, right ankle and foot |
| M19.172 | Post-traumatic osteoarthritis, left ankle and foot |
| M19.179 | Post-traumatic osteoarthritis, unspecified ankle and foot |
| M19.2 | Secondary osteoarthritis of other joints |
| M19.21 | Secondary osteoarthritis, shoulder |
| M19.211 | Secondary osteoarthritis, right shoulder |
| M19.212 | Secondary osteoarthritis, left shoulder |
| M19.219 | Secondary osteoarthritis, unspecified shoulder |
| M19.22 | Secondary osteoarthritis, elbow |
| M19.221 | Secondary osteoarthritis, right elbow |
| M19.222 | Secondary osteoarthritis, left elbow |
| M19.229 | Secondary osteoarthritis, unspecified elbow |
| M19.23 | Secondary osteoarthritis, wrist |
| M19.231 | Secondary osteoarthritis, right wrist |
| M19.232 | Secondary osteoarthritis, left wrist |
| M19.239 | Secondary osteoarthritis, unspecified wrist |
| M19.24 | Secondary osteoarthritis, hand |
| M19.241 | Secondary osteoarthritis, right hand |
| M19.242 | Secondary osteoarthritis, left hand |
| M19.249 | Secondary osteoarthritis, unspecified hand |
| M19.27 | Secondary osteoarthritis, ankle and foot |
| M19.271 | Secondary osteoarthritis, right ankle and foot |
| M19.272 | Secondary osteoarthritis, left ankle and foot |
| M19.279 | Secondary osteoarthritis, unspecified ankle and foot |
| M19.9 | Osteoarthritis, unspecified site |
| M19.90 | Unspecified osteoarthritis, unspecified site |
| M19.91 | Primary osteoarthritis, unspecified site |
| M19.92 | Post-traumatic osteoarthritis, unspecified site |
| M19.93 | Secondary osteoarthritis, unspecified site |