ICD-10 Code: M18 – Osteoarthritis of first carpometacarpal joint

ICD-10 code M18 corresponds to Osteoarthritis of first carpometacarpal joint. This code is classified under the chapter M00-M25: Arthropathies, which is part of the M00-M25: Arthropathies category.

The parent chapter is Diseases of the musculoskeletal system and connective tissue.