Diseases of the musculoskeletal system and connective tissue

Osteoarthritis (M15-M19)
- - M18 - Osteoarthritis of first carpometacarpal joint
  - M18.0 - Bilateral primary osteoarth of first carpometacarp joints
  - M18.1 - Unilateral primary osteoarth of first carpometacarp joint
  - M18.10 - Unil prim osteoarth of first carpometacarp joint, unsp hand
  - M18.11 - Unil primary osteoarth of first carpometacarp joint, r hand
  - M18.12 - Unil primary osteoarth of first carpometacarp joint, l hand
  - M18.2 - Bi post-trauma osteoarth of first carpometacarp joints
  - M18.3 - Unil post-trauma osteoarth of first carpometacarp joint
  - M18.30 - Unil post-trauma osteoarth of 1st carpometacarp jt,unsp hand
  - M18.31 - Unil post-trauma osteoarth of 1st carpometacarp jt, r hand
  - M18.32 - Unil post-trauma osteoarth of 1st carpometacarp jt, l hand
  - M18.4 - Oth bi secondary osteoarth of first carpometacarp joints
  - M18.5 - Oth unil secondary osteoarth of first carpometacarp joint
  - M18.50 - Oth unil sec osteoarth of 1st carpometacarp joint, unsp hand
  - M18.51 - Oth unil sec osteoarth of first carpometacarp joint, r hand
  - M18.52 - Oth unil sec osteoarth of first carpometacarp joint, l hand
  - M18.9 - Osteoarthritis of first carpometacarpal joint, unspecified