ICD-10-CM Code C22.1
Intrahepatic bile duct carcinoma
Billable CodeBillable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
C22.1 is a billable ICD code used to specify a diagnosis of intrahepatic bile duct carcinoma. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
The ICD code C221 is used to code Cholangiocarcinoma
Cholangiocarcinoma is a form of cancer that is composed of mutated epithelial cells (or cells showing characteristics of epithelial differentiation) that originate in the bile ducts which drain bile from the liver into the small intestine. Other biliary tract cancers include gallbladder cancer and cancer of the ampulla of Vater.
|MeSH Codes:||D018281, D018281|
|ICD 9 Codes:||155.1, 156.1|
Micrograph of an intrahepatic cholangiocarcinoma (right of image) adjacent to benign hepatocytes (left of image). H&E stain.
Coding Notes for C22.1 Info for medical coders on how to properly use this ICD-10 code
Inclusion TermsInclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Code Type-1 Excludes:
Type-1 ExcludesType-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here."
- Malignant neoplasm of hepatic duct - instead, use code C24.0
- DRG Group #435-437 - Malignancy of hepatobiliary system or pancreas with MCC.
- DRG Group #435-437 - Malignancy of hepatobiliary system or pancreas with CC.
- DRG Group #435-437 - Malignancy of hepatobiliary system or pancreas without CC or MCC.
Related Concepts SNOMET-CT
- Intrahepatic bile duct carcinoma (disorder)
Coding Advice SNOMET-CT
- Possible requirement for morphology code
ICD-10-CM Alphabetical Index References for 'C22.1 - Intrahepatic bile duct carcinoma'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code C22.1. Click on any term below to browse the alphabetical index.
ICD-10-CM Neoplasms Index References for 'C22.1 - Intrahepatic bile duct carcinoma'
The ICD-10-CM Neoplasms Index links the below-listed medical terms to the ICD code C22.1. Click on any term below to browse the neoplasms index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 155.1 was previously used, C22.1 is the appropriate modern ICD10 code.