MCMedicalCodingSoftware
C7A.0

C7A.0: Malignant carcinoid tumors

Non-billable headerICD-10-CM

C7A.0 is a non-billable header ICD-10-CM code for malignant carcinoid tumors. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 inherited from the categories above C7A.0

Not part of this code, but both may be coded when both are present.

Written on C7A: Malignant neuroendocrine tumors

  • malignant pancreatic islet cell tumors (C25.4)
  • Merkel cell carcinoma (C4A.-)

Other codes that can never be billed with C7A.0

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

  • C17Malignant neoplasm of small intestine
  • C18Malignant neoplasm of colon
  • C19Malignant neoplasm of rectosigmoid junction
  • C20Malignant neoplasm of rectum
  • C34Malignant neoplasm of bronchus and lung
  • C37Malignant neoplasm of thymus
  • C64Malignant neoplasm of kidney, except renal pelvis
  • C75Malignant neoplasm of other endocrine glands and related structures

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 C7A.0

4 child codes. Green means billable.

Other codes under C7A

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.