Table S2.
ICD-9-CM diagnosis codes for comorbidities
| Cirrhosis | |
| 571 | Alcoholic fatty liver |
| 571 | Chronic liver disease and cirrhosis |
| 571.2 | Alcoholic cirrhosis of liver |
| 571.3 | Alcoholic liver damage, unspecified |
| 571.5 | Cirrhosis of liver without mention of alcohol |
| 571.6 | Biliary cirrhosis |
| Hepatitis | |
| 70 | Viral hepatitis A with hepatic coma |
| 70.1 | Viral hepatitis A without mention of hepatic coma |
| 70.2 | Viral hepatitis B with hepatic coma |
| 70.2 | Viral hepatitis B with hepatic coma, acute or unspecified, without mention of hepatitis delta |
| 70.21 | Viral hepatitis B with hepatic coma, acute or unspecified, with hepatitis delta |
| 70.22 | Viral hepatitis B with hepatic coma, chronic, without mention of hepatitis delta |
| 70.23 | Viral hepatitis B with hepatic coma, chronic, with hepatitis delta |
| 70.3 | Viral hepatitis B without mention of hepatic coma, acute or unspecified, without mention of hepatitis delta |
| 70.31 | Viral hepatitis B without mention of hepatic coma, acute or unspecified, with hepatitis delta |
| 70.32 | Viral hepatitis B without mention of hepatic coma, chronic, without mention of hepatitis delta |
| 70.33 | Viral hepatitis B without mention of hepatic coma, chronic, with hepatitis delta |
| 70.4 | Other specified viral hepatitis with hepatic coma |
| 70.41 | Acute hepatitis C with hepatic coma |
| 70.42 | Hepatitis delta without mention of active hepatitis B disease with hepatic coma |
| 70.43 | Hepatitis E with hepatic coma |
| 70.44 | Chronic hepatitis C with hepatic coma |
| 70.49 | Other specified viral hepatitis with hepatic coma |
| 70.5 | Other specified viral hepatitis without mention of hepatic coma |
| 70.51 | Acute hepatitis C without mention of hepatic coma |
| 70.52 | Hepatitis delta without mention of active hepatitis B disease or hepatic coma |
| 70.53 | Hepatitis E without mention of hepatic coma |
| 70.54 | Chronic hepatitis C without mention of hepatic coma |
| 70.59 | Other specified viral hepatitis without mention of hepatic coma |
| 70.6 | Unspecified viral hepatitis with hepatic coma |
| 70.7 | Unspecified viral hepatitis C |
| 70.7 | Unspecified viral hepatitis C without hepatic coma |
| 70.71 | Unspecified viral hepatitis C with hepatic coma |
| 70.9 | Unspecified viral hepatitis without mention of hepatic coma |
| 571.1 | Acute alcoholic hepatitis |
| 571.4 | Chronic hepatitis, unspecified |
| 571.41 | Chronic persistent hepatitis |
| 571.49 | Other chronic hepatitis |
| 571.8 | Other chronic nonalcoholic liver disease |
| 571.9 | Unspecified chronic liver disease without mention of alcohol |
| 573 | Chronic passive congestion of liver |
| 573.1 | Hepatitis in viral diseases classified elsewhere |
| 573.2 | Hepatitis in other infectious diseases classified elsewhere |
| 573.3 | Hepatitis, unspecified |
| 573.4 | Hepatic infarction |
| 573.8 | Other specified disorders of liver |
| 573.9 | Unspecified disorder of liver |
Abbreviation: ICD-9-CM, International Classification of Diseases, Ninth Revision, Clinical Modification.