ICD-10-CM category
C79 Secondary malignant neoplasm of other and unspecified sites
C79 is a category, not a billable code. Report one of the 24 complete codes below.
Codes in 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
- C79.89Secondary malignant neoplasm of other specified sites
- C79.9Secondary malignant neoplasm of unspecified site
Outside the US? C79 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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