Alphabetic Index · main term
Synostosis (congenital)
At the main termQ78.8
Synostosis (congenital) is a main term in the FY2027 ICD-10-CM Alphabetic Index (Index to Diseases and Injuries). The Index lists Q78.8 for the term on its own. It has 2 subterms and 3 code entries. First-level subterms include astragalo-scaphoid, radioulnar. Confirm any code you find here in the Tabular List before you report it.