Table 1.
List of suggested ICD-codes for versions 8–11 with applicable codes for different diagnoses.
| Diagnosis | ICD-8 | ICD-9 | ICD-10 | ICD-11 (version 04/19) |
|---|---|---|---|---|
| Defining NAFLD at baseline | ||||
| NAFLD, all | No available code | 571.8 | K76.0 | DB92.0, DB92.Z DB92.Y |
| NASH | No available code | No available code | K75.8 | DB92.1 |
| Excluding other liver diseases at/before baseline | ||||
| ALD | 571,00, 571,01 | 571.0–571.3 | K70 | DB94 |
| Viral hepatitis | 999,2, 070 | 070 | B16, B17, B18, B19 | 1E50, 1E51, 1E5Z |
| Autoimmune liver disease (AIH, PBC, PSC) | No available code | 571.6, 576.1 | K83.0A, K83.0F, K74.3, K75.4 | DB96 |
| Hemochromatosis | 273,2 | 275.0 | E83.1 | 5C64.1 |
| Wilson | 273,3 | 275.1 | E83.0B | 5C64.0 |
| Alpha-1-antitrypsin deficiency | No available code | 277.6 | E88.0A, E88.0B | 5C5A |
| Budd-Chiari | No available code | 453.0 | I82.0, K76.5 | DB98.5 |
| Chronic hepatitis, unspecified | 570 | 571.4 | K73.9, K73.2 | DB97.2 |
| Secondary or unspecified biliary cirrhosis | No available code | 571.6 | K74.4, K74.5 | DB93.2 |
| Excluding alcohol/drug use disorder at/before baseline | ||||
| Codes associated with alcohol use disorder | 303 | 303, 305.0 | F10 | 6C40 |
| Codes associated with somatic consequences of alcohol (except ALD) | 291, 980,00, 980,01, 980,99 | 291, 357.5, 425.5, 535.3, 980.1, 980.9 | E24.4, G62.1, I42.6, K29.2, G31.2, G72.1, K85.2, K86.0, T51.0, T51.9, Y57.3, X65, Z50.2, Z71.4, Z72.1 | 5A70.2, 8D44.0, 8D44.1, BC43.01, DA42.80, 8A03.30, 8D44.Y, DC31.1, DC32.3, QB95.2, QE10, 6D72.10, DA51.50, 6D84.0 |
| Codes associated with drug use disorders except nicotine/caffeine | No available code | 305.1–9 | F11-F14, F16, F18, F19 | 6C41–6C47, 6C4B-H |
| Compensated cirrhosis | ||||
| Cirrhosis, compensated | 571,9 | 571.5 | K74.6 | DB93.1 |
| Esophageal varices, not bleeding | No available code | 456.1, 456.21 | I85.9, I98.2 | DA26.01, DA26.0Z |
| Gastric varices, not bleeding | No available code | No available code | I86.4 | DA43.0 |
| Decompensated cirrhosis | ||||
| Esophageal varices, bleeding | 456.0 | 456.0, 456.20 | I85.0, I98.3 | DA26.00 |
| Ascites | 785.3 | 789.5 | R18 | ME04 |
| Hepatic encephalopathy | No available code | 572.2 | Code for cirrhosis + prescription for lactulose/rifaximin | DB99.5 |
| Hepatorenal syndrome | No available code | 572.4 | K76.7 | DB99.2 |
| Portal hypertension | 571,9 | 572.3 | K76.6 | DB98.7 |
| Liver transplantation | ||||
| Liver transplantation status | No available code | V427 | Z94.4 | QB63.3 |
| Liver cancer outcomes | ||||
| HCC | 155,01 | 155.0 | C22.0 | 2C12.0 |
| Liver cancer, unspecified | No available code | 155.2 | C22.9 | 2C12.Z |
| “Unspecific” codes that might be relevant for some studies | ||||
| Chronic or unspecified liver failure | 573 | 572.8 | K72.1, K72.9 | DB99.7, DB99.8 |
| Acute or subacute liverfailure | 570 | 570 | K72.0 | DB91 |
| Portal vein thrombosis | No available code | No available code | I81.9, K75.1 | DB98.0 |
| Hepatic fibrosis or sclerosis or fibrosis with sclerosis | No available code | 571,9 | K74.0, K74.1, K74.2 | DB93.0 |
Abbreviations: AIH, autoimmune hepatitis; ALD, alcohol-related liver disease; HCC, hepatocellular carcinoma; ICD, International Classification of Disease; NAFLD, nonalcoholic fatty liver disease; NASH, nonalcoholic steatohepatitis; PBC, primary biliary cholangitis: PSC, primary sclerosing cholangitis.