ICD-10-CM C7B.1 is the diagnosis code for Secondary Merkel cell carcinoma. This code falls under the section "Secondary neuroendocrine tumors" within Chapter 2 — Neoplasms (C00-D49). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where C7B.1 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, C7B.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
C7B.1 is the ICD-10-CM diagnosis code for "Secondary Merkel cell carcinoma". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of C7B.1 is C7B ("Secondary neuroendocrine tumors"). C7B.1 provides a more specific classification within this category.
C7B.1 is located in Section C7B — "Secondary neuroendocrine tumors" within Chapter 2 of the ICD-10-CM Tabular List.
Use C7B.1 when the patients documented diagnosis matches "Secondary Merkel cell carcinoma" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Secondary Merkel cell carcinoma is C7B.1.
Yes, C7B.1 can be used as a primary diagnosis code since it is billable and specific.
C7B.1 is in Chapter 2 of the ICD-10-CM Tabular List.
Yes, C7B.1 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.