C44.1
⚠ Non-billable (Header)Other and unspecified malignant neoplasm of skin of eyelid, including canthus
Neoplasms (C00-D49)
⚠️ This is a category header code — not billable. Use a more specific child code below.
❌ Excludes1
directThese codes are mutually exclusive. Never code them together.
- • connective tissue of eyelid (C49.0)
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • 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.-)
Child Codes (5)
Clinical Description
ICD-10-CM code C44.1 represents other and unspecified malignant neoplasm of skin of eyelid, including canthus. This code falls under the Neoplasms (C00-D49) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.
This is a 5-character code at the 4th level of specificity. There are 5 more specific child codes under C44.1. Coders should note that C44.1 has 5 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code C44.1?
ICD-10-CM code C44.1 is "Other and unspecified malignant neoplasm of skin of eyelid, including canthus". It belongs to the category: Neoplasms (C00-D49).
Is C44.1 a billable ICD-10 code?
No, C44.1 is a non-billable header code. A more specific child code must be used for billing.
What codes are excluded with C44.1?
C44.1 has 5 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in C44
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)