C4A.5 - Merkel cell carcinoma of trunk

  • Applicable to Merkel cell carcinoma of trunk
  • The 2025 edition of ICD10-CM C4A.5 became effective on October 1, 2024.
  • This is the American ICD10-CM version of C4A.5 - other international versions of ICD10 C4A.5 may differ.
  • C4A.5 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • C4A.5 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.
  • C4A.5 - Merkel cell carcinoma of trunk
    • C4A.5 - Merkel cell carcinoma of trunk
    • C4A.51 - Merkel cell carcinoma of anal skin
    • C4A.52 - Merkel cell carcinoma of skin of breast
    • C4A.59 - Merkel cell carcinoma of other part of trunk

Type 2 Excludes

  • malignant neoplasm of anus NOS (C21.0)
  • malignant neoplasm of scrotum (C63.2)

The following codes above C4A.5 contain annotation back-references that may be applicable to C4A.5:

Chapter: C00-D49 Neoplasms

Section: C43-C44 Melanoma and other malignant neoplasms of skin

Category: C4A Merkel cell carcinoma

trunk icd 10
 
carcinoma icd 10
 
merkel icd 10
 
Non-Billable/Non-Specific Code

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