C4A.30 - Merkel cell carcinoma of unspecified part of face

Applicable to Merkel cell carcinoma of unspecified part of face
The 2025 edition of ICD10-CM C4A.30 became effective on October 1, 2024.
This is the American ICD10-CM version of C4A.30 - other international versions of ICD10 C4A.30 may differ.
C4A.30 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

The following codes above C4A.30 contain annotation back-references that may be applicable to C4A.30: