ICD-10-CM Codes Browse (Tabular) Diagnostic External Drug Neoplasm

C4A.51 – Merkel cell carcinoma of anal skin

Coding Notes

Active

Billable, valid for HIPAA-covered transactions

Applicable To

Merkel cell carcinoma of anal margin

Merkel cell carcinoma of perianal skin

GEM Conversion to ICD-9 CM

209.35

Fs: 10000 – Merkel cell carcinoma of the trunk

MDC / MS-DRG Reference

DRG 595

MAJOR SKIN DISORDERS WITH MCC

DRG 596

MAJOR SKIN DISORDERS WITHOUT MCC

Back Reference of Diagnostic Codes

Carcinoma (malignant) See also Neoplasm, by site, malignant

Merkel cell C4A.9

anal margin C4A.51

anal skin C4A.51

perianal skin C4A.51

Sibling Codes

C4A.52

Merkel cell carcinoma of skin of breast

C4A.59

Merkel cell carcinoma of other part of trunk

Parent Sibling 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

View in Tabular

Code	Title
C00-D49	Neoplasms (C00-D49)
C43-C44	Melanoma and other malignant neoplasms of skin (C43-C44)
C4A	Merkel cell carcinoma
C4A.5	Merkel cell carcinoma of trunk
C4A.51	Merkel cell carcinoma of anal skin Applicable to Merkel cell carcinoma of anal margin Merkel cell carcinoma of perianal skin