Legg (-Calvé) -Perthes disease, syndrome or osteochondrosis

Legg (-Calvé) -Perthes disease, syndrome or osteochondrosis is a main term in the FY2027 ICD-10-CM Alphabetic Index (Index to Diseases and Injuries). The Index lists M91.1- for this term: Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes]. The Index shows it with a dash, which means it is incomplete and needs more characters. Confirm any code you find here in the Tabular List before you report it.