C79.4
C79.4: Secondary malignant neoplasm of other and unspecified parts of nervous system
Non-billable headerICD-10-CM
C79.4 is a non-billable header ICD-10-CM code for secondary malignant neoplasm of other and unspecified parts of nervous system. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 inherited from the categories above C79.4
A category’s note binds every code beneath it.
Written on C79: Secondary malignant neoplasm of other and unspecified sites
- secondary carcinoid tumors (C7B.-)
- secondary neuroendocrine tumors (C7B.-)
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead C79.4
2 child codes. Green means billable.
Other codes under C79
- C79.0Secondary malignant neoplasm of kidney and renal pelvis
- C79.1Secondary malignant neoplasm of bladder and other and unspecified urinary organs
- C79.2Secondary malignant neoplasm of skin
- C79.3Secondary malignant neoplasm of brain and cerebral meninges
- C79.5Secondary malignant neoplasm of bone and bone marrow
- C79.6Secondary malignant neoplasm of ovary
- C79.7Secondary malignant neoplasm of adrenal gland
- C79.8Secondary malignant neoplasm of other specified sites
- C79.9Secondary malignant neoplasm of unspecified site