M18 — ICD-10-CM Diagnosis Codes

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