ICD-10-CM > M00-M99 > M91-M94 > M92 > M92.4 M92.4 Juvenile osteochondrosis of patella Non-Billable/Non-Specific Applicable To Osteochondrosis (juvenile) of primary patellar center [Köhler]Osteochondrosis (juvenile) of secondary patellar centre [Sinding Larsen] Codes M92.40Juvenile osteochondrosis of patella, unspecified kneeM92.41Juvenile osteochondrosis of patella, right kneeM92.42Juvenile osteochondrosis of patella, left knee