Is C79 a billable code?
No. C79 is a header code that groups 25 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
C79: Secondary malignant neoplasm of other and unspecified sites
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
C79 groups related diagnoses under secondary malignant neoplasm of other and unspecified sites. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under C79
- C79.00Secondary malignant neoplasm of unspecified kidney and renal pelvis
- C79.01Secondary malignant neoplasm of right kidney and renal pelvis
- C79.02Secondary malignant neoplasm of left kidney and renal pelvis
- C79.10Secondary malignant neoplasm of unspecified urinary organs
- C79.11Secondary malignant neoplasm of bladder
- C79.19Secondary malignant neoplasm of other urinary organs
- C79.2Secondary malignant neoplasm of skin
- C79.31Secondary malignant neoplasm of brain
- C79.32Secondary malignant neoplasm of cerebral meninges
- C79.40Secondary malignant neoplasm of unspecified part of nervous system
- C79.49Secondary malignant neoplasm of other parts of nervous system
- C79.51Secondary malignant neoplasm of bone
- C79.52Secondary malignant neoplasm of bone marrow
- C79.60Secondary malignant neoplasm of unspecified ovary
- C79.61Secondary malignant neoplasm of right ovary
- C79.62Secondary malignant neoplasm of left ovary
- C79.63Secondary malignant neoplasm of bilateral ovaries
- C79.70Secondary malignant neoplasm of unspecified adrenal gland
- C79.71Secondary malignant neoplasm of right adrenal gland
- C79.72Secondary malignant neoplasm of left adrenal gland
- C79.81Secondary malignant neoplasm of breast
- C79.82Secondary malignant neoplasm of genital organs
- C79.83Secondary malignant neoplasm of oral cavity
- C79.89Secondary malignant neoplasm of other specified sites
- C79.9Secondary malignant neoplasm of unspecified site
C79 questions
What does C79 mean?
C79 is the ICD-10-CM code for Secondary malignant neoplasm of other and unspecified sites. 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.