Is C7B a billable ICD-10-CM code?

No. C7B is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does C7B sit in the tabular list?

Neoplasms (C00-D49), in the block Secondary neuroendocrine tumors (C7B).

C7B

C7B — Secondary neuroendocrine tumors

Non-billable headerICD-10-CM

C7B is a non-billable header ICD-10-CM code for secondary neuroendocrine tumors. It cannot be billed on its own: choose one of the more specific child codes below.

Use additional code

Add a secondary code to capture the detail described below.

code to identify any functional activity

Other codes that can never be billed with C7B

These codes carry an Excludes1 note pointing at C7B. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C7B alone.

C77Secondary and unspecified malignant neoplasm of lymph nodes
C78Secondary malignant neoplasm of respiratory and digestive organs
C79Secondary malignant neoplasm of other and unspecified sites
C79.2Secondary malignant neoplasm of skin
C79.5Secondary malignant neoplasm of bone and bone marrow

Risk adjustment

C7B 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 C7B

3 child codes. Green means billable.

Questions about C7B

Is C7B a billable ICD-10-CM code?: No. C7B is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does C7B sit in the tabular list?: Neoplasms (C00-D49), in the block Secondary neuroendocrine tumors (C7B).