All ICD10 Codes

C4A.5

Non-Billable
ChapterC00–D49
Ranksubcategory
Official Description

Merkel cell carcinoma of trunk

Use a more specific code (3 billable)
C4A.51Merkel cell carcinoma of anal skinC4A.52Merkel cell carcinoma of skin of breastC4A.59Merkel cell carcinoma of other part of trunk
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 2: Neoplasms (C00-D49).

Instructional Notes

Excludes2(Not included here. Code separately if applicable.)
  • malignant neoplasm of anus NOS (C21.0)
  • malignant neoplasm of scrotum (C63.2)

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 trunkNot billable
C4A.51Merkel cell carcinoma of anal skinBillable
C4A.52Merkel cell carcinoma of skin of breastBillable
C4A.59Merkel cell carcinoma of other part of trunkBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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