All ICD10 Codes

C4A.51

Billable
ChapterC00–D49
Ranksubcategory
Official Description

Merkel cell carcinoma of anal skin

Metadata & Insights
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 2: Neoplasms (C00-D49).

Instructional Notes

Includes
  • Merkel cell carcinoma of anal margin
  • Merkel cell carcinoma of perianal skin
General instructions are available for the parent sections:
View C4A.5 Notes

Clinical Hierarchy

BillableHas subcodes
CH2Neoplasms (C00-D49)
C43-C44Melanoma and other malignant neoplasms of skin (C43-C44)
C4AMerkel cell carcinoma
C4A.5Merkel cell carcinoma of trunk
C4A.51Merkel cell carcinoma of anal skinBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to C4A.51:

subcategoryC4A.5
Merkel cell carcinoma of trunk
View context instructions

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 595
Major Skin Disorders with MCC
DRG 596
Major Skin Disorders without MCC

Cross Reference

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