*Ranging from minimal to overt.
*HE cases are identified by ICD-10 codes K70.41 (alcoholic hepatic failure with coma), K71.11 (toxic liver disease with hepatic necrosis, with coma), K72.01 (acute and subacute hepatic failure with coma), K72.11 (chronic hepatic failure with coma), K72.90 (hepatic failure, unspecified without coma), and K72.91 (hepatic failure, unspecified with coma). Unless otherwise specified, hospital case data include primary and secondary diagnoses. Hospital case data for 2018 were collected from October 1, 2017, to September 30, 2018.
*This is from a retrospective chart review of medical records from 1990-1993.