C79.5
C79.5 — Secondary malignant neoplasm of bone and bone marrow
Non-billable headerICD-10-CM
C79.5 is a non-billable header ICD-10-CM code for secondary malignant neoplasm of bone and bone marrow. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- secondary carcinoid tumors of bone (C7B.03)
Risk adjustment
C79.5 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead C79.5
2 child codes. Green means billable.
Related codes at this level
Codes that share C79. If C79.5 is not quite right, the correct code is usually one of these.
- 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
- C79.4Secondary malignant neoplasm of other and unspecified parts of nervous system
- 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
Questions about C79.5
- Is C79.5 a billable ICD-10-CM code?
- No. C79.5 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does C79.5 sit in the tabular list?
- Neoplasms (C00-D49), in the block Malignant neoplasms of ill-defined, other secondary and unspecified sites (C76-C80).
- What cannot be coded together with C79.5?
- C79.5 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.