Additional file 1: of Impact of chronic hepatitis C on mortality in cirrhotic patients admitted to intensive-care unit

Appendix 1. International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) codes for comorbid diseases. Appendix 2. International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) codes for CHC related diagnoses and abuse of alcohol and drugs. Appendix 3. International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) codes for HIV, HCV and HBV status. Appendix 4. International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) codes for acute organ dysfunction. Appendix 5. International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) codes for bacterial and fungal infections. Appendix 6. International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) coding algorithms for Charlson comorbidities. (DOC 219 kb)