2027 ICD-10-CM Diagnosis Code C44.1321Sebaceous cell carcinoma of skin of right upper eyelid, including canthus

ICD-10-CM Codes›C00–D49›C43-C44›C44

ICD-10-CM C44.1321
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

C44.1321 is a billable ICD-10-CM diagnosis code for sebaceous cell carcinoma of skin of right upper eyelid, including canthus. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 124 through 125. Coders also document this condition as sebaceous adenocarcinoma. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Skin cancers - all other types.

Code Identity

ICD-10-CM Code
C44.1321
Billable Status
Yes — Valid for Submission
Code Describes
Sebaceous cell carcinoma of skin of right upper eyelid, including canthus
Short Description
Sebaceous cell carcinoma skin/ r upper eyelid, inc canthus
Parent Code
C44.132
Sebaceous cell carcinoma 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 CodeC44.1321Sebaceous cell carcinoma of skin of right upper eyelid, including canthus

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Sebaceous adenocarcinoma
  • Sebaceous adenocarcinoma of eyelid
  • Sebaceous carcinoma of skin of right upper eyelid
  • Sebaceous carcinoma of skin of upper eyelid

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to C44.1321: its own notes plus those printed at C44.1, C44, and Chapter 2. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From C44 Other and unspecified malignant neoplasm of skin applies to 101 codes
  • malignant neoplasm of sebaceous glands
  • malignant neoplasm of sweat glands

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From C44.1 Other and unspecified malignant neoplasm of skin of eyelid, including canthus applies to 25 codes
  • connective tissue of eyelid (C49.0)
From C44 Other and unspecified malignant neoplasm of skin applies to 101 codes
  • 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.-)

Notes

General instructions on how these codes are used.

From Chapter 2 (C00-D49) Neoplasms applies to 1,730 codes
  • Functional activity
  • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
  • Morphology [Histology]
  • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
  • Primary malignant neoplasms overlapping site boundaries
  • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
  • Malignant neoplasm of ectopic tissue
  • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name C44.1321, its category, or a range that includes it.

Applicable To 1

These notes mention C44.1321.

  • Z85.828 Personal history of other malignant neoplasm of skin
    Conditions classifiable to C44 names C44, which includes this code

Excludes1 2

These codes carry an Excludes1 note naming C44.1321: they are not reported together with it, unless the two conditions are unrelated.

  • C69 Malignant neoplasm of eye and adnexa
    malignant neoplasm of eyelid (skin) (C43.1-, C44.1-) names C44.1-, which includes this code
  • C76 Malignant neoplasm of other and ill-defined sites
    malignant neoplasm of skin (C44.-) names C44.-, which includes this code

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

Eyelid disorders include a variety of conditions that affect your eyelids. Your eyelids protect your eyes and help keep them healthy. When you blink, they spread tears across your eyes and help wash away dirt or dust. You also close your eyelids when something comes near your eyes to protect them from injury.

The full article covers:

  • What are eyelid disorders?
  • What causes eyelid disorders?
  • What are common eyelid disorders?
  • What are the symptoms of eyelid disorders?
  • How are eyelid disorders diagnosed?
  • How are eyelid disorders treated?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code History & ChangesHistory

Replacement C44.1321 replaces the following previously assigned code(s):

  • C44.19 - Oth malignant neoplasm of skin of eyelid, including canthus
FY 2019AddedAdded to the ICD-10-CM code setEffective October 1, 2018.
FY 2020–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About C44.1321Overview

Is C44.1321 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report sebaceous cell carcinoma of skin of right upper eyelid, including canthus on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does C44.1321 group to?

When sebaceous cell carcinoma of skin of right upper eyelid, including canthus is the principal diagnosis on an inpatient stay, it groups to MS-DRG 125, 124, with relative weights from 0.7699 to 1.2470 depending on complications. Higher weights mean higher Medicare reimbursement.

Can C44.1321 be reported with C49.0?

Not as a rule. The Excludes1 note at C44.1, which applies to C44.1321, lists "connective tissue of eyelid (C49.0)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).