C24 - Malignant neoplasm of other and unspecified parts of biliary tract

Version 2023
ICD-10:C24
Short Description:Malignant neoplasm of other and unsp parts of biliary tract
Long Description:Malignant neoplasm of other and unspecified parts of biliary tract
Status: Not Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Neoplasms (C00–D48)
    • Malignant neoplasms of digestive organs (C15-C26)
      • Malignant neoplasm of other and unsp parts of biliary tract (C24)

C24 is a non-specific and non-billable ICD-10 code code, consider using a code with a higher level of specificity for a diagnosis of malignant neoplasm of other and unspecified parts of biliary tract. The code is not specific and is NOT valid for the year 2023 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Unspecified diagnosis codes like C24 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Specific Coding for Malignant neoplasm of other and unsp parts of biliary tract

Non-specific codes like C24 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for malignant neoplasm of other and unsp parts of biliary tract:

  • BILLABLE CODE - Use C24.0 for Malignant neoplasm of extrahepatic bile duct
  • BILLABLE CODE - Use C24.1 for Malignant neoplasm of ampulla of Vater
  • BILLABLE CODE - Use C24.8 for Malignant neoplasm of overlapping sites of biliary tract
  • BILLABLE CODE - Use C24.9 for Malignant neoplasm of biliary tract, unspecified

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to this diagnosis code:


Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

Patient Education


Bile Duct Cancer

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.

Bile duct cancer is rare. It can happen in the parts of the bile ducts that are outside or inside the liver. Cancer of the bile duct outside of the liver is much more common. Risk factors include having inflammation of the bile duct, ulcerative colitis, and some liver diseases.

Symptoms can include:

Tests to diagnose bile duct cancer may include a physical exam, imaging tests of the liver and bile ducts, blood tests, and a biopsy.

Treatments include surgery, radiation therapy, and chemotherapy.

NIH: National Cancer Institute


[Learn More in MedlinePlus]

Liver Cancer

Your liver is the largest organ inside your body. It helps your body digest food, store energy, and remove poisons. Primary liver cancer starts in the liver. Metastatic liver cancer starts somewhere else and spreads to your liver.

Risk factors for primary liver cancer include :

Symptoms can include a lump or pain on the right side of your abdomen and yellowing of the skin. However, you may not have symptoms until the cancer is advanced. This makes it harder to treat. Doctors use tests that examine the liver and the blood to diagnose liver cancer. Treatment options include surgery, radiation, chemotherapy, or liver transplantation.

NIH: National Cancer Institute


[Learn More in MedlinePlus]

What is Bile Duct Cancer (Cholangiocarcinoma)?

Learn about bile duct cancer (cholangiocarcinoma) risk factors, symptoms, tests to diagnose, factors affecting prognosis, staging, and treatment.
[Learn More in MedlinePlus]

Code History