C24.1 – Malignant neoplasm of ampulla of Vater

ICD-10-CM 2027 diagnosis code · Malignant neoplasms of digestive organs

Billable code

ICD-10-CM code C24.1
Code
C24.1 (claims format: C241)
Description
Malignant neoplasm of ampulla of Vater
Billable
Yes – valid for HIPAA-covered transactions
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
2. Neoplasms (C00-D49)
Block
C15-C26 Malignant neoplasms of digestive organs
Parent codes
C24

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

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

Excludes1 (not coded here):
  • malignant neoplasm of intrahepatic bile duct (C22.1)

Block C15-C26

Excludes1 (not coded here):
  • Kaposi's sarcoma of gastrointestinal sites (C46.4)
Excludes2 (not included here):
  • gastrointestinal stromal tumors (C49.A-)

Related codes in C24

Frequently asked questions

What is ICD-10 code C24.1?

C24.1 is the ICD-10-CM code for malignant neoplasm of ampulla of Vater, in the block C15-C26 (Malignant neoplasms of digestive organs).

Is C24.1 a billable code?

Yes. C24.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does C24.1 belong to?

It belongs to category C24 – Malignant neoplasm of other and unspecified parts of biliary tract.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.