C4A is a non-billable/non-specific diagnosis code from the 2024 ICD-10-CM used to classify the following condition: Merkel cell carcinoma.
Codes
C4A.0
Merkel cell carcinoma of lip
C4A.1
Merkel cell carcinoma of eyelid, including canthus
C4A.2
Merkel cell carcinoma of ear and external auricular canal
C4A.3
Merkel cell carcinoma of other and unspecified parts of face
C4A.4
Merkel cell carcinoma of scalp and neck
C4A.5
Merkel cell carcinoma of trunk
C4A.6
Merkel cell carcinoma of upper limb, including shoulder
C4A.7
Merkel cell carcinoma of lower limb, including hip
C4A.8
Merkel cell carcinoma of overlapping sites
C4A.9
Merkel cell carcinoma, unspecified
Versions
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code