2026 ICD-10-CM Diagnosis Code C44.1921Other specified malignant neoplasm of skin of right upper eyelid, including canthus

ICD-10-CM Codes›C00–D49›C43-C44›C44

ICD-10-CM C44.1921
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

C44.1921 is a billable ICD-10-CM diagnosis code for other specified malignant neoplasm of skin of right upper eyelid, including canthus. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 124 through 125. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Skin cancers - all other types.

Code Identity

ICD-10-CM Code
C44.1921
Billable Status
Yes — Valid for Submission
Code Describes
Other specified malignant neoplasm of skin of right upper eyelid, including canthus
Short Description
Oth malignant neoplasm skin/ right upper eyelid, inc canthus
Parent Code
C44.192
Other specified malignant neoplasm of skin of right eyelid, including canthus

Code Classification

ChapterC00–D49Neoplasms
SectionC43-C44Melanoma and other malignant neoplasms of skin
CategoryC44Other and unspecified malignant neoplasm of skin
This CodeC44.1921Other specified malignant neoplasm of skin of right upper eyelid, including canthus

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NEO028
Skin cancers - all other types
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Eyelid Disorders

Your eyelids help protect your eyes. When you blink, your eyelids spread moisture over your eyes. Blinking also helps move dirt or other particles off the surface of the eye. You close your eyelids when you see something coming toward your eyes. This can help protect against injuries.

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Code History & ChangesHistory

Replacement C44.1921 replaces the following previously assigned code(s):

  • C44.192 - Oth malignant neoplasm skin/ right eyelid, including canthus
FY 2019AddedAdded to the ICD-10-CM code setEffective October 1, 2018.
FY 2020–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About C44.1921Overview

Is C44.1921 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other specified malignant neoplasm of skin of right upper eyelid, including canthus on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does C44.1921 group to?

When other specified malignant neoplasm of skin of right upper eyelid, including canthus is the principal diagnosis on an inpatient stay, it groups to MS-DRG 124, 125, with relative weights from 0.7678 to 1.3231 depending on complications. Higher weights mean higher Medicare reimbursement.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.