C44
⚠ Non-billable
Other and unspecified malignant neoplasm of skin
ICD-10-CM · FY2026 · Neoplasms
Code
C44
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Neoplasms
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Includes
- malignant neoplasm of sebaceous glands
- malignant neoplasm of sweat glands
Excludes1 — never code together
- 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?
ICD-10-CM code C44 represents Other and unspecified malignant neoplasm of skin. It is a non-billable header code requiring a more specific subcategory in the Neoplasms chapter, effective October 1, 2025 – September 30, 2026.
Is C44 billable?
No. C44 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is C44 in?
C44 belongs to the Neoplasms chapter (C00–D49) of ICD-10-CM.
Related codes in the C44 category
C44.0
Other and unspecified malignant neoplasm of skin of lip
Non-billable
C44.1
Other and unspecified malignant neoplasm of skin of eyelid, including canthus
Non-billable
C44.2
Other and unspecified malignant neoplasm of skin of ear and external auricular canal
Non-billable
C44.00
Unspecified malignant neoplasm of skin of lip
Billable
C44.01
Basal cell carcinoma of skin of lip
Billable
C44.02
Squamous cell carcinoma of skin of lip
Billable
C44.09
Other specified malignant neoplasm of skin of lip
Billable
C44.10
Unspecified malignant neoplasm of skin of eyelid, including canthus
Non-billable
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