Index to Diseases and Injuries
Carcinoma › Merkel cell
Index code:C4A.9
- anal margin C4A.51
- anal skin C4A.51
- canthus C4A.1-
- ear and external auricular canal C4A.2-
- external auricular canal C4A.2-
- eyelid, including canthus C4A.1-
- face C4A.30
- specified NEC C4A.39
- hip C4A.7-
- lip C4A.0
- lower limb, including hip C4A.7-
- neck C4A.4
- nodal presentation C7B.1
- nose C4A.31
- overlapping sites C4A.8
- perianal skin C4A.51
- scalp C4A.4
- secondary C7B.1
- shoulder C4A.6-
- skin of breast C4A.52
- trunk NEC C4A.59
- upper limb, including shoulder C4A.6-
- visceral metastatic C7B.1
Use the index to find a code, then confirm it in the Tabular List before assigning it. A code ending in a dash is incomplete, and a code in [brackets] is a manifestation code reported after the underlying condition. Search the whole index.
Frequently asked questions
What is the ICD-10-CM code for Carcinoma › Merkel cell?
The ICD-10-CM Alphabetic Index directs "Carcinoma › Merkel cell" to C4A.9. Subterms below it may lead to a more specific code. Always confirm the code in the Tabular List before assigning it.
ICD-10-CM Index to Diseases and Injuries maintained by CDC/NCHS (public domain), from the CMS FY2027 release.