Specific code 2014 ICD-9-CM Diagnosis Code 155.1
Malignant neoplasm of intrahepatic bile ducts
  • Billable Code
  • Short description: Mal neo intrahepat ducts.
  • ICD-9-CM 155.1 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 155.1 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Cancer of the bile ducts, intrahepatic
  • Cancer of the liver, cholangiocarcinoma
  • Cholangiocarcinoma
  • Cholangiocarcinoma of biliary tract
  • Intrahepatic bile duct cancer
  • Malignant neoplasm of intrahepatic gall duct
155.1 Excludes
Applies To
  • Canaliculi biliferi
  • Interlobular:
    • bile ducts
    • biliary canals
  • Intrahepatic:
    • biliary passages
    • canaliculi
    • gall duct
Convert to ICD-10-CM: 155.1 converts directly to:
  • 2014 ICD-10-CM C22.1 Intrahepatic bile duct carcinoma
ICD-9-CM Volume 2 Index entries containing back-references to 155.1:
  • Adenocarcinoma (M8140/3) - see also Neoplasm, by site, malignant
    • bile duct type (M8160/3)
      • liver 155.1
      • specified site NEC - see Neoplasm, by site, malignant
      • unspecified site 155.1
  • Cancer (M8000/3)-see also Neoplasm, by site, malignant
    • bile duct type (M8160/3), liver 155.1
  • Carcinoma (M8010/3) - see also Neoplasm, by site, malignant
    • bile duct type (M8160/3)
      • and hepatocellular, mixed (M8180/3) 155.0
      • liver 155.1
      • specified site NEC - see Neoplasm, by site, malignant
      • unspecified site 155.1
  • Cholangiocarcinoma (M8160/3)
    • liver 155.1
    • unspecified site 155.1
  • Cystadenocarcinoma (M8440/3) - see also Neoplasm, by site, malignant
    • bile duct type (M8161/3) 155.1
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 155.1 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.