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ICD-10-CM codes
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ICD-10-CM
ICD-10-CM codes
Neoplasms (C00-D49)
C43-C44
C4A
C4A.2
C4A.20
ICD-10-CM code "C4A.20": Merkel cell carcinoma of unspecified ear and external auricular canal (2024)
Overview
ICD-10 Code
C4A.20
Description
Merkel cell carcinoma of unspecified ear and external auricular canal
Hierarchy
Neoplasms (C00-D49)
Melanoma and other malignant neoplasms of skin (C43-C44)
Merkel cell carcinoma (C4A)
Merkel cell carcinoma of ear and external auricular canal (C4A.2)
Merkel cell carcinoma of unspecified ear and external auricular canal (C4A.20)
Billable status
ICD-10-CM Billable code
Excludes
Neoplasms (C00-D49)
Melanoma and other malignant neoplasms of skin (C43-C44)
Merkel cell carcinoma (C4A)
Merkel cell carcinoma of ear and external auricular canal (C4A.2)
Merkel cell carcinoma of unspecified ear and external auricular canal (C4A.20)
Includes
Neoplasms (C00-D49)
Melanoma and other malignant neoplasms of skin (C43-C44)
Merkel cell carcinoma (C4A)
Merkel cell carcinoma of ear and external auricular canal (C4A.2)
Merkel cell carcinoma of unspecified ear and external auricular canal (C4A.20)