M18.50
BillableOther unilateral secondary osteoarthritis of first carpometacarpal joint, unspecified hand
M18.50 is the ICD-10-CM code for Other unilateral secondary osteoarthritis of first carpometacarpal joint, unspecified 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 M18.50?
- M18.50 is the ICD-10-CM code for "Other unilateral secondary osteoarthritis of first carpometacarpal joint, unspecified hand". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
- Is M18.50 a billable code?
- Yes — M18.50 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