M18.31
BillableUnilateral post-traumatic osteoarthritis of first carpometacarpal joint, right hand
M18.31 is the ICD-10-CM code for Unilateral post-traumatic osteoarthritis of first carpometacarpal joint, right hand. It is a billable, specific code valid for reimbursement.
M00-M99 Diseases of the musculoskeletal system and connective tissue
No additional coding notes for this code.
Frequently asked questions
- What is ICD-10 code M18.31?
- M18.31 is the ICD-10-CM code for "Unilateral post-traumatic osteoarthritis of first carpometacarpal joint, right hand". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
- Is M18.31 a billable code?
- Yes — M18.31 is a billable, specific ICD-10-CM code valid for reimbursement.
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
Look up another ICD-10 code or condition