Specific code 2014 ICD-9-CM Diagnosis Code 121.1
Clonorchiasis
  • Billable Code
  • ICD-9-CM 121.1 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 121.1 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Clinical Information
  • Infection of the biliary passages with clonorchis sinensis, also called opisthorchis sinensis. It may lead to inflammation of the biliary tract, proliferation of biliary epithelium, progressive portal fibrosis, and sometimes bile duct carcinoma. Extension to the liver may lead to fatty changes and cirrhosis. (from Dorland, 27th ed)
Applies To
  • Biliary cirrhosis due to clonorchiasis
  • Chinese liver fluke disease
  • Hepatic distomiasis due to Clonorchis sinensis
  • Oriental liver fluke disease
Convert to ICD-10-CM: 121.1 converts directly to:
  • 2014 ICD-10-CM B66.1 Clonorchiasis
ICD-9-CM Volume 2 Index entries containing back-references to 121.1:
  • Cholangiohepatitis 575.8
    • due to fluke infestation 121.1
  • Cirrhosis, cirrhotic 571.5
    • biliary (cholangiolitic) (cholangitic) (cholestatic) (extrahepatic) (hypertrophic) (intrahepatic) (nonobstructive) (obstructive) (pericholangiolitic) (posthepatic) (primary) (secondary) (xanthomatous) 571.6
      • due to
        • clonorchiasis 121.1
        • flukes 121.3
  • Clonorchiasis 121.1
  • Clonorchiosis 121.1
  • Clonorchis infection, liver 121.1
  • Disease, diseased - see also Syndrome
    • Chinese liver fluke 121.1
    • Oriental liver fluke 121.1
  • Distomiasis 121.9
    • bile passages 121.3
      • due to Clonorchis sinensis 121.1
    • hepatic (liver) 121.3
      • due to Clonorchis sinensis (clonorchiasis) 121.1
    • liver 121.3
      • due to Clonorchis sinensis 121.1
  • Fibrosis, fibrotic
    • biliary 576.8
      • due to Clonorchis sinensis 121.1
    • hepatic - see also Cirrhosis, liver
      • due to Clonorchis sinensis 121.1
  • Hepatomegaly (see also Hypertrophy, liver) 789.1
    • due to Clonorchis sinensis 121.1
  • Infection, infected, infective (opportunistic) 136.9
    • Clonorchis (sinensis) (liver) 121.1
  • Infestation 134.9
    • Clonorchis (sinensis) (liver) 121.1
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 121.1 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.