M91 - Juvenile osteochondrosis of hip and pelvis
M91.1 - Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes]
M91.10 - Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes], unspecified leg
M91.11 - Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes], right leg
M91.12 - Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes], left leg