C7A.1

ICD-10Billable

Malignant poorly differentiated neuroendocrine tumors

Official ICD-10-CM descriptor (FY2026)

Malignant poorly differentiated neuroendocrine tumors

C7A.1 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

  • Malignant poorly differentiated neuroendocrine tumor NOS
  • Malignant poorly differentiated neuroendocrine carcinoma, any site
  • High grade neuroendocrine carcinoma, any site

Related codes in C7A

Where this code sits

Parent code
C7A

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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