2024 ICD-10-CM Diagnosis Code K83.5

Biliary cyst

ICD-10-CM Code:
ICD-10 Code for:
Biliary cyst
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Code Navigator:

Code Classification

  • Diseases of the digestive system
    • Disorders of gallbladder, biliary tract and pancreas
      • Other diseases of biliary tract

K83.5 is a billable diagnosis code used to specify a medical diagnosis of biliary cyst. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Acquired choledochal cyst
  • Acquired cystic dilatation of common bile duct
  • Acquired dilation of bile duct
  • Choledochal cyst
  • Cyst of bile duct
  • Cyst of biliary tract
  • Cyst of intrahepatic bile ducts
  • Cystic dilatation of common bile duct
  • Liver cyst

Clinical Classification

Clinical Information

  • Choledochal Cyst

    a congenital anatomic malformation of a bile duct, including cystic dilatation of the extrahepatic bile duct or the large intrahepatic bile duct. classification is based on the site and type of dilatation. type i is most common.
  • Bile Duct Mucinous Cystic Neoplasm with an Associated Invasive Carcinoma|Bile Duct Cystadenocarcinoma|Bile Duct MCN with an Associated Invasive Carcinoma|Bile duct cystadenocarcinoma|Biliary Cystadenocarcinoma|Cystadenocarcinoma of Bile Duct|Cystadenocarcinoma of the Bile Duct

    a mucinous cystic neoplasm that arises from the intrahepatic or extrahepatic bile ducts and it is associated with an invasive carcinomatous component.
  • Biliary Cyst

    a cystic dilatation that occurs in any part of the biliary tree.
  • Choledochal Cyst

    cystic dilatation of the hepatic duct or bile duct.

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert K83.5 to ICD-9-CM

  • ICD-9-CM Code: 576.8 - Dis of biliary tract NEC
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education

Bile Duct Diseases

Your liver makes a digestive juice called bile. Your gallbladder stores it between meals. When you eat, your gallbladder pushes the bile into tubes called bile ducts. They carry the bile to your small intestine. The bile helps break down fat. It also helps the liver get rid of toxins and wastes.

Different diseases can block the bile ducts and cause a problem with the flow of bile:

  • Gallstones, which can increase pressure in the gallbladder and cause a gallbladder attack. The pain usually lasts from one to several hours.
  • Cancer
  • Infections
  • Birth defects, such as biliary atresia. It is the most common reason for liver transplants in children in the United States.
  • Inflammation, which can cause scarring. Over time, this can lead to liver failure.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.


[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.