| Full description | Other unilateral secondary osteoarthritis of first carpometacarpal joint, left hand |
| Billable | Yes |
| Chapter | Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99) |
| Section | Osteoarthritis (M15-M19) |
| Parent code | M18.5 — Oth unil secondary osteoarth of first carpometacarp joint |