Table 1. ICD codes used to identify and group liver, gallbladder and biliary tract cancers.
| Definition | ICD8 and 9 | ICD10 | Abbreviation |
|---|---|---|---|
| (a) Subsites | |||
| Liver, gallbladder and biliary tract | 155, 156 | C22–C24 | TOTAL |
| Liver cell cancer | 155.0 | C22.0, C22.2–C22.7 | LCC |
| Intrahepatic bile ducts | 155.1 | C22.1 | IHBD |
| Liver unspecified | 155.2 | C22.9 | LUS |
| Gallbladder | 156.0 | C23 | GB |
| Extrahepatic bile ducts | 156.1 | C24.0 | EHBD |
| Other parts of the biliary tract | 156.2–156.9 | C24.1–C24.9 | OPBT |
| Definition | ICD-O and ICD-O2 | Abbreviation | |
| (b) Histological types | |||
| Cholangiocarcinoma | M816 | CCA | |
| Hepatocellular carcinoma | M817 | HCC | |
| Adenocarcinoma | M814 | — | |
| Carcinoma NOS | M801 | — | |
| Neoplasm NOS+others | M800 and all other codes not specified | — | |
ICD, International Classification of Diseases; NOS, not otherwise specified.