ICD-10 Code: M20.20 – Hallux rigidus, unspecified foot

ICD-10 code M20.20 corresponds to Hallux rigidus, unspecified foot. This code is classified under the chapter M20 Acquired deformities of fingers and toes, which is part of the M00-M25: Arthropathies category.

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