Is C78 a billable code?
No. C78 is a header code that groups 15 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
C78: Secondary malignant neoplasm of respiratory and digestive organs
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
C78 groups related diagnoses under secondary malignant neoplasm of respiratory and digestive organs. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under C78
- C78.00Secondary malignant neoplasm of unspecified lung
- C78.01Secondary malignant neoplasm of right lung
- C78.02Secondary malignant neoplasm of left lung
- C78.1Secondary malignant neoplasm of mediastinum
- C78.2Secondary malignant neoplasm of pleura
- C78.30Secondary malignant neoplasm of unspecified respiratory organ
- C78.31Secondary malignant neoplasm of larynx
- C78.32Secondary malignant neoplasm of pharynx
- C78.39Secondary malignant neoplasm of other respiratory organs
- C78.4Secondary malignant neoplasm of small intestine
- C78.5Secondary malignant neoplasm of large intestine and rectum
- C78.6Secondary malignant neoplasm of retroperitoneum and peritoneum
- C78.7Secondary malignant neoplasm of liver and intrahepatic bile duct
- C78.80Secondary malignant neoplasm of unspecified digestive organ
- C78.89Secondary malignant neoplasm of other digestive organs
C78 questions
What does C78 mean?
C78 is the ICD-10-CM code for Secondary malignant neoplasm of respiratory and digestive organs. It is in chapter 2, Neoplasms (C00-D49).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.