ICD-10 Diagnosis Code C24.0

Malignant neoplasm of extrahepatic bile duct

Diagnosis Code C24.0

ICD-10: C24.0
Short Description: Malignant neoplasm of extrahepatic bile duct
Long Description: Malignant neoplasm of extrahepatic bile duct
This is the 2018 version of the ICD-10-CM diagnosis code C24.0

Valid for Submission
The code C24.0 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Neoplasms (C00–D48)
    • Malignant neoplasms of digestive organs (C15-C26)
      • Malignant neoplasm of other and unsp parts of biliary tract (C24)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code C24.0 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)

  • 435 - MALIGNANCY OF HEPATOBILIARY SYSTEM OR PANCREAS WITH MCC
  • 436 - MALIGNANCY OF HEPATOBILIARY SYSTEM OR PANCREAS WITH CC
  • 437 - MALIGNANCY OF HEPATOBILIARY SYSTEM OR PANCREAS WITHOUT CC/MCC

Convert to ICD-9
  • 156.1 - Mal neo extrahepat ducts

Synonyms
  • Carcinoma common bile duct
  • Carcinoma of extrahepatic bile duct
  • Cholangiocarcinoma of biliary tract
  • Extrahepatic bile ducts TNM finding
  • Extrahepatic bile ducts TNM finding
  • Extrahepatic bile ducts TNM finding
  • Extrahepatic bile ducts TNM finding
  • Klatskin's tumor
  • Malignant neoplasm of hepatic duct
  • Malignant neoplasm of sphincter of Oddi
  • Malignant tumor of ampulla of Vater
  • Malignant tumor of extrahepatic bile duct
  • Malignant tumor of pancreatic duct
  • Neoplasm of cystic duct
  • Primary adenocarcinoma of biliary tract
  • Primary adenocarcinoma of biliary tract
  • Primary adenocarcinoma of common bile duct
  • Primary adenocarcinoma of cystic duct
  • Primary malignant neoplasm of common bile duct
  • Primary malignant neoplasm of cystic duct
  • Primary malignant neoplasm of distal bile duct
  • Primary malignant neoplasm of extrahepatic bile duct
  • Primary malignant neoplasm of perihilar bile duct
  • Primary mucinous cystic neoplasm with associated invasive carcinoma of cystic duct
  • Primary mucinous cystic neoplasm with associated invasive carcinoma of distal bile duct
  • Primary mucinous cystic neoplasm with associated invasive carcinoma of perihilar bile duct
  • pT1: Tumor confined to the bile duct histologically
  • pT2: Tumor invades beyond the wall of bile duct
  • pT3: Tumor invades the liver, gallbladder, pancreas, and/or ipsilateral branches of the portal vein
  • pT4: Tumor invades any of the following: main portal vein or its branches bilaterally, common hepatic artery, or other adjacent structures, such as the colon, stomach, duodenum, or abdominal wall

Index to Diseases and Injuries
References found for the code C24.0 in the Index to Diseases and Injuries:

  • - Tumor - See Also: Neoplasm, unspecified behavior, by site;

Tabular List of Diseases and Injuries
References found for the code C24.0 in the Tabular List of Diseases and Injuries:

  • Inclusion Terms:
    • Malignant neoplasm of biliary duct or passage NOS
    • Malignant neoplasm of common bile duct
    • Malignant neoplasm of cystic duct
    • Malignant neoplasm of hepatic duct

Table of Neoplasms

The code C24.0 is included in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.

Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.

The Tabular must be reviewed for the complete diagnosis code.

Neoplasm, neoplastic Malignant
Primary
Malignant
Secondary
CaInSitu Benign Uncertain
Behavior
Unspecified
Behavior
»bile or biliary (tract)
  »duct or passage (common) (cystic) (extrahepatic)
C24.0C78.89D01.5D13.5D37.6D49.0
»choledochal duct
C24.0C78.89D01.5D13.5D37.6D49.0
»common (bile) duct
C24.0C78.89D01.5D13.5D37.6D49.0
»cystic (bile) duct (common)
C24.0C78.89D01.5D13.5D37.6D49.0
»extrahepatic (bile) duct
C24.0C78.89D01.5D13.5D37.6D49.0
»gall duct (extrahepatic)
C24.0C78.89D01.5D13.5D37.6D49.0
»hepatic [See Also: Index to disease, by histology]
  »duct (bile)
C24.0C78.89D01.5D13.5D37.6D49.0
»sphincter
  »of Oddi
C24.0C78.89D01.5D13.5D37.6D49.0

Information for Patients


Bile Duct Cancer

Also called: Cholangiocarcinoma

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

  • Jaundice
  • Itchy skin
  • Fever
  • Abdominal pain

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

  • Biliary stricture (Medical Encyclopedia)
  • Cholangiocarcinoma (Medical Encyclopedia)
  • ERCP (Medical Encyclopedia)
  • What to Know about External Beam Radiation Therapy - NIH - Easy-to-Read (National Cancer Institute)

[Read More]

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.

Index of Diseases and Injuries Definitions

  • And - The word "and" should be interpreted to mean either "and" or "or" when it appears in a title.
  • Code also note - A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
  • Code first - Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
  • Type 1 Excludes Notes - 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.
  • Type 2 Excludes Notes - A type 2 Excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • Includes Notes - This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
  • Inclusion terms - List of terms is included under some codes. These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • NEC "Not elsewhere classifiable" - This abbreviation in the Alphabetic Index represents "other specified". When a specific code is not available for a condition, the Alphabetic Index directs the coder to the "other specified” code in the Tabular List.
  • NOS "Not otherwise specified" - This abbreviation is the equivalent of unspecified.
  • See - The "see" instruction following a main term in the Alphabetic Index indicates that another term should be referenced. It is necessary to go to the main term referenced with the "see" note to locate the correct code.
  • See Also - A "see also" instruction following a main term in the Alphabetic Index instructs that there is another main term that may also be referenced that may provide additional Alphabetic Index entries that may be useful. It is not necessary to follow the "see also" note when the original main term provides the necessary code.
  • 7th Characters - Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
  • With - The word "with" should be interpreted to mean "associated with" or "due to" when it appears in a code title, the Alphabetic Index, or an instructional note in the Tabular List. The word "with" in the Alphabetic Index is sequenced immediately following the main term, not in alphabetical order.

Present on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

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