ICD-10 Code: M18.1 – Unilateral primary osteoarthritis of first carpometacarpal joint

ICD-10 code M18.1 corresponds to Unilateral primary osteoarthritis of first carpometacarpal joint. This code is classified under the chapter M18 Osteoarthritis of first carpometacarpal joint, which is part of the M00-M25: Arthropathies category.

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