C7B.1 – Secondary Merkel cell carcinoma

ICD-10-CM 2027 diagnosis code · Secondary neuroendocrine tumors (C7B)

Billable code

ICD-10-CM code C7B.1
Code
C7B.1 (claims format: C7B1)
Description
Secondary Merkel cell carcinoma
Billable
Yes – valid for HIPAA-covered transactions
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
2. Neoplasms (C00-D49)
Block
C7B Secondary neuroendocrine tumors (C7B)
Parent codes
C7B

Notes for C7B.1

Applicable to:
  • Merkel cell carcinoma nodal presentation
  • Merkel cell carcinoma visceral metastatic presentation

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

C7B – Secondary neuroendocrine tumors

Use additional code:
  • code to identify any functional activity

Index terms for C7B.1

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in C7B

Frequently asked questions

What is ICD-10 code C7B.1?

C7B.1 is the ICD-10-CM code for secondary Merkel cell carcinoma, in the block C7B (Secondary neuroendocrine tumors (C7B)).

Is C7B.1 a billable code?

Yes. C7B.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does C7B.1 belong to?

It belongs to category C7B – Secondary neuroendocrine tumors.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.