ICD-10-CM > M00-M99 > M91-M94 > M91 M91 Juvenile osteochondrosis of hip and pelvis Non-Billable/Non-Specific Type 1 Excludes slipped upper femoral epiphysis (nontraumatic) (M93.0-) Codes M91.0Juvenile osteochondrosis of pelvisM91.1Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes]M91.10Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes], unspecified legM91.11Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes], right legM91.12Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes], left legM91.2Coxa planaM91.20Coxa plana, unspecified hipM91.21Coxa plana, right hipM91.22Coxa plana, left hipM91.3PseudocoxalgiaM91.30Pseudocoxalgia, unspecified hipM91.31Pseudocoxalgia, right hipM91.32Pseudocoxalgia, left hipM91.4Coxa magnaM91.40Coxa magna, unspecified hipM91.41Coxa magna, right hipM91.42Coxa magna, left hipM91.8Other juvenile osteochondrosis of hip and pelvisM91.80Other juvenile osteochondrosis of hip and pelvis, unspecified legM91.81Other juvenile osteochondrosis of hip and pelvis, right legM91.82Other juvenile osteochondrosis of hip and pelvis, left legM91.9Juvenile osteochondrosis of hip and pelvis, unspecifiedM91.90Juvenile osteochondrosis of hip and pelvis, unspecified, unspecified legM91.91Juvenile osteochondrosis of hip and pelvis, unspecified, right legM91.92Juvenile osteochondrosis of hip and pelvis, unspecified, left leg