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C44

Non-billable

Other and unspecified malignant neoplasm of skin

C44 is the ICD-10-CM code for Other and unspecified malignant neoplasm of skin. It is a non-billable category code — use a more specific child code such as C44.0 for billing.

Status
Header (non-billable)
Chapter
C00-D49
Subcodes
10
Edition
FY2026

C00-D49 Neoplasms

Includes

  • •malignant neoplasm of sebaceous glands
  • •malignant neoplasm of sweat glands

Excludes1 — not coded here

  • •Kaposi's sarcoma of skin (C46.0)
  • •malignant melanoma of skin (C43.-)
  • •malignant neoplasm of skin of genital organs (C51-C52, C60.-, C63.2)
  • •Merkel cell carcinoma (C4A.-)

Frequently asked questions

What is ICD-10 code C44?
C44 is the ICD-10-CM code for "Other and unspecified malignant neoplasm of skin". It falls under C00-D49 Neoplasms.
Is C44 a billable code?
No — C44 is a non-billable header code. Use a more specific child code (such as C44.0) for billing.
What are the subcodes of C44?
C44 has 10 more specific child codes, including C44.0, C44.1, C44.2.
What is excluded from C44?
Excludes1 (not coded here): Kaposi's sarcoma of skin (C46.0); malignant melanoma of skin (C43.-); malignant neoplasm of skin of genital organs (C51-C52, C60.-, C63.2); Merkel cell carcinoma (C4A.-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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