C4A.2 - Merkel cell carcinoma of ear and external auricular canal

The ICD 10 Code for Merkel cell carcinoma of ear and external auricular canal is listed as C4A.2.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field	Value
Diagnosis Code:	C4A.2
Description:	Merkel cell carcinoma of ear and external auricular canal

Chapter	Neoplasms (C00-D49)
Parent	C4A - Merkel cell carcinoma
ICD-10-CM Children (deeper level / typically more specific) of C4A.2:
C4A.20 - Merkel cell carcinoma of unspecified ear and external auricular canal
C4A.21 - Merkel cell carcinoma of right ear and external auricular canal
C4A.22 - Merkel cell carcinoma of left ear and external auricular canal
ICD-10-CM Siblings (same level / similar specificity) of C4A.2:
C4A.0 - Merkel cell carcinoma of lip
C4A.1 - Merkel cell carcinoma of eyelid, including canthus
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