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C44.1921

C44.1921: Other specified malignant neoplasm of skin of right upper eyelid, including canthus

Billable / specific codeICD-10-CMright

C44.1921 is a billable, specific ICD-10-CM code for other specified malignant neoplasm of skin of right upper eyelid, including canthus. It is valid for submission on a claim.

Check C44.1921 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above C44.1921

A category’s note binds every code beneath it.

Written on C44.1: Other and unspecified malignant neoplasm of skin of eyelid, including canthus

  • connective tissue of eyelid (C49.0)

Written on C44: Other and unspecified malignant neoplasm of skin

  • 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.-)

Other codes that can never be billed with C44.1921

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • C76Malignant neoplasm of other and ill-defined sites

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

C44.1921 is named in 68 Medicare coverage policies: 68 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

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  • A53883Billing and Coding: Mohs Micrographic Surgery (MMS)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under C44.192

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.