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 M91-M94 – Chondropathies (M91-M94) > 2024 ICD-10-CM Codes M91 – Juvenile osteochondrosis of hip and pelvis (M91) > 2024 ICD-10-CM Codes M91.1 – Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes] (M91.1)