MCMedicalCodingSoftware
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

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • 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

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 C7B

3 child codes. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.