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ICD-10-CM Code for Merkel cell carcinoma of anal skin C4A.51

ICD-10 code C4A.51 for Merkel cell carcinoma of anal skin is a medical classification as listed by WHO under the range - Malignant neoplasms .

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Official Long Descriptor

Merkel cell carcinoma of anal skin
Merkel cell carcinoma of anal margin
Merkel cell carcinoma of perianal skin

C4A.5

Excludes2: malignant neoplasm of anus NOS (C21.0)
malignant neoplasm of scrotum (C63.2)

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Get crucial instructions for accurate ICD-10-CM C4A.51 coding with all applicable Excludes 1 and Excludes 2 notes from the section level conveniently shown with each code.
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Surgical pathology-Coding
You are correct - per Paget's, if it's a skin biopsy, it has to be a 305 no matter the size or number of cassettes (I have included the Paget's rule below). I hope this helps!! Popular urban legend ... [ Read More ]
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