C24

Non-billable

Malignant neoplasm of other and unsp parts of biliary tract

Malignant neoplasm of other and unspecified parts of biliary tract

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

C15-C26

Child Codes

4

Coding Notes

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

  • Kaposi's sarcoma of gastrointestinal sites (C46.4)
  • malignant neoplasm of intrahepatic bile duct (C22.1)

Excludes 2

Conditions not included here, but the patient may have both

  • gastrointestinal stromal tumors (C49.A-)

Child Codes (4)

Also Known As / Clinical Terms

Frequently Asked Questions

What is ICD-10 code C24?

ICD-10-CM code C24 represents "Malignant neoplasm of other and unspecified parts of biliary tract". It is a non-billable header code — use a more specific child code for billing purposes.

Is C24 a billable code?

No, C24 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under C24.

What chapter is C24 in?

C24 is in Chapter 2: Neoplasms (codes C00-D49).

What codes cannot be used with C24?

C24 has Excludes1 notes indicating codes that cannot be used together with it, including: Kaposi's sarcoma of gastrointestinal sites (C46.4); malignant neoplasm of intrahepatic bile duct (C22.1).

What are the subcategories under C24?

C24 has 4 child codes, including: 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).

What are the UMLS CUIs for C24?

C24 is linked to 1 UMLS Concept Unique Identifier: C0494147. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

Automate ICD-10 Coding With AI

Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.

Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.