C78.8 – Secondary malignant neoplasm of other and unspecified digestive organs
ICD-10-CM 2027 diagnosis code · Malignant neoplasms of ill-defined, other secondary and unspecified sites
- Code
C78.8(claims format:C788)- Description
- Secondary malignant neoplasm of other and unspecified digestive organs
- Short description
- Secondary malignant neoplasm of and unsp digestive organs
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 2. Neoplasms (C00-D49)
- Block
- C76-C80 Malignant neoplasms of ill-defined, other secondary and unspecified sites
- Parent codes
- C78
Billable codes under C78.8
C78.8 is a header code and cannot be used on claims. Choose the most specific code:
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
C78 – Secondary malignant neoplasm of respiratory and digestive organs
- lymph node metastases (C77.0)
Related codes in C78
- C78.0 – Secondary malignant neoplasm of lungHeader
- C78.1 – Secondary malignant neoplasm of mediastinumBillable
- C78.2 – Secondary malignant neoplasm of pleuraBillable
- C78.3 – Secondary malignant neoplasm of other and unspecified respiratory organsHeader
- C78.4 – Secondary malignant neoplasm of small intestineBillable
- C78.5 – Secondary malignant neoplasm of large intestine and rectumBillable
- C78.6 – Secondary malignant neoplasm of retroperitoneum and peritoneumBillable
- C78.7 – Secondary malignant neoplasm of liver and intrahepatic bile ductBillable
Frequently asked questions
What is ICD-10 code C78.8?
C78.8 is the ICD-10-CM code for secondary malignant neoplasm of other and unspecified digestive organs, in the block C76-C80 (Malignant neoplasms of ill-defined, other secondary and unspecified sites).
Is C78.8 a billable code?
No. C78.8 is a header code with more specific child codes; report one of the billable codes listed above.
What category does C78.8 belong to?
It belongs to category C78 – Secondary malignant neoplasm of respiratory and digestive organs.
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.