Concato's disease (pericardial polyserositis)

Concato's disease (pericardial polyserositis) is a main term in the FY2027 ICD-10-CM Alphabetic Index (Index to Diseases and Injuries). The Index lists A19.9 for the term on its own. It has 2 subterms and 2 code entries. First-level subterms include nontubercular, pleural. Confirm any code you find here in the Tabular List before you report it.