C7B.1

ICD-10Billable

Secondary Merkel cell carcinoma

Official ICD-10-CM descriptor (FY2026)

Secondary Merkel cell carcinoma

C7B.1 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

  • Merkel cell carcinoma nodal presentation
  • Merkel cell carcinoma visceral metastatic presentation

Related codes in C7B

Where this code sits

Parent code
C7B

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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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