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ICD-10-CM · FY 2026 APRIL UPDATE

C79

Secondary malignant neoplasm of other and unspecified sites

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
C79.0Secondary malignant neoplasm of kidney and renal pelvisCategory
C79.00Secondary malignant neoplasm of unspecified kidney and renal pelvisBillable
C79.01Secondary malignant neoplasm of right kidney and renal pelvisBillable
C79.02Secondary malignant neoplasm of left kidney and renal pelvisBillable
C79.1Secondary malignant neoplasm of bladder and other and unspecified urinary organsCategory
C79.10Secondary malignant neoplasm of unspecified urinary organsBillable
C79.11Secondary malignant neoplasm of bladderBillable
C79.19Secondary malignant neoplasm of other urinary organsBillable
C79.2Secondary malignant neoplasm of skinBillable
C79.3Secondary malignant neoplasm of brain and cerebral meningesCategory
C79.31Secondary malignant neoplasm of brainBillable
C79.32Secondary malignant neoplasm of cerebral meningesBillable
C79.4Secondary malignant neoplasm of other and unspecified parts of nervous systemCategory
C79.40Secondary malignant neoplasm of unspecified part of nervous systemBillable
C79.49Secondary malignant neoplasm of other parts of nervous systemBillable
C79.5Secondary malignant neoplasm of bone and bone marrowCategory
C79.51Secondary malignant neoplasm of boneBillable
C79.52Secondary malignant neoplasm of bone marrowBillable
C79.6Secondary malignant neoplasm of ovaryCategory
C79.60Secondary malignant neoplasm of unspecified ovaryBillable
C79.61Secondary malignant neoplasm of right ovaryBillable
C79.62Secondary malignant neoplasm of left ovaryBillable
C79.63Secondary malignant neoplasm of bilateral ovariesBillable
C79.7Secondary malignant neoplasm of adrenal glandCategory
C79.70Secondary malignant neoplasm of unspecified adrenal glandBillable
C79.71Secondary malignant neoplasm of right adrenal glandBillable
C79.72Secondary malignant neoplasm of left adrenal glandBillable
C79.8Secondary malignant neoplasm of other specified sitesCategory
C79.81Secondary malignant neoplasm of breastBillable
C79.82Secondary malignant neoplasm of genital organsBillable

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This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

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ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.