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 M22 – Disorder of patella (M22) > 2024 ICD-10-CM Codes M22.4 – Chondromalacia patellae (M22.4)