Free Medical Coding > ICD10 CM > 2024 ICD-10-CM Codes > 2024 ICD-10-CM Codes M00-M99 – Diseases of the musculoskeletal system and connective tissue (M00-M99) > 2024 ICD-10-CM Codes M20-M25 – Other joint disorders (M20-M25) > 2024 ICD-10-CM Codes M20 – Acquired deformities of fingers and toes (M20) > 2024 ICD-10-CM Codes M20.0 – Deformity of finger(s) > 2024 ICD-10-CM Codes M20.01 – Mallet finger (M20.01)