2018

  1. ICD-10-CM Codes
    2. ›
  2. C00-D49 Neoplasms
    3. ›
  3. C15-C26 Malignant neoplasms of digestive organs
    4. ›
  4. C24- Malignant neoplasm of other and unspecified parts of biliary tract
    5. ›

2018 ICD-10-CM Diagnosis Code C24

Malignant neoplasm of other and unspecified parts of biliary tract

Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as C24. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • malignant neoplasm of intrahepatic bile duct (
    ICD-10-CM Diagnosis Code C22.1

    Intrahepatic bile duct carcinoma

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Cholangiocarcinoma
    Type 1 Excludes
    • malignant neoplasm of hepatic duct (C24.0)
    C22.1
    )
The following code(s) above C24 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to C24:
  • C00-D49
    2018 ICD-10-CM Range C00-D49

    Neoplasms

    Note
    • Functional activity
    • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
    • Morphology [Histology]
    • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
    • Primary malignant neoplasms overlapping site boundaries
    • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
    • Malignant neoplasm of ectopic tissue
    • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
    Neoplasms
  • C15-C26
    2018 ICD-10-CM Range C15-C26

    Malignant neoplasms of digestive organs

    Type 1 Excludes
    • Kaposi's sarcoma of gastrointestinal sites (C46.4)
    Type 2 Excludes
    • gastrointestinal stromal tumors (C49.A-)
    Malignant neoplasms of digestive organs
Code History
ICD-10-CM Codes Adjacent To C24
C22 Malignant neoplasm of liver and intrahepatic bile ducts
C22.0 Liver cell carcinoma
C22.1 Intrahepatic bile duct carcinoma
C22.2 Hepatoblastoma
C22.3 Angiosarcoma of liver
C22.4 Other sarcomas of liver
C22.7 Other specified carcinomas of liver
C22.8 Malignant neoplasm of liver, primary, unspecified as to type
C22.9 Malignant neoplasm of liver, not specified as primary or secondary
C23 Malignant neoplasm of gallbladder
C24 Malignant neoplasm of other and unspecified parts of biliary tract
C24.0 Malignant neoplasm of extrahepatic bile duct
C24.1 Malignant neoplasm of ampulla of Vater
C24.8 Malignant neoplasm of overlapping sites of biliary tract
C24.9 Malignant neoplasm of biliary tract, unspecified
C25 Malignant neoplasm of pancreas
C25.0 Malignant neoplasm of head of pancreas
C25.1 Malignant neoplasm of body of pancreas
C25.2 Malignant neoplasm of tail of pancreas
C25.3 Malignant neoplasm of pancreatic duct
C25.4 Malignant neoplasm of endocrine pancreas

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.