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ICD-10-CM 2027 diagnosis code

C44.199Other specified malignant neoplasm of skin of left eyelid, including canthus

Not billable — use a more specific code

C44.199 is a header code, so it can't be reported by itself. Choose one of the 2 more specific codes beneath it.Short description: Oth malignant neoplasm skin/ left eyelid, including canthus

Code last changed in FY2019 (effective October 1, 2018). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About C44.199

C44.199 is the ICD-10-CM diagnosis code for other specified malignant neoplasm of skin of left eyelid, including canthus. It belongs to category C44 (other and unspecified malignant neoplasm of skin), block C43-C44 (melanoma and other malignant neoplasms of skin) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within C44.19 (other specified malignant neoplasm of skin of eyelid, including canthus), C44.199 is specifically for other specified malignant neoplasm of skin of left eyelid, including canthus. Related codes cover unspecified eyelid, including canthus (C44.191) and right eyelid, including canthus (C44.192).

To report this condition, pick the subcode that matches the documentation: C44.1991 (canthus) and C44.1992 (canthus).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2019 (expanded into subcodes).

Before ICD-10, this condition was coded in ICD-9-CM as 173.19 (other specified malignant neoplasm of eyelid, including canthus).

Specific codes under C44.199

Notes that apply from higher levels

Instructions written at a parent level also apply to C44.199.

› From C44.1 Other and unspecified malignant neoplasm of skin of eyelid, including canthus
Excludes1
  • connective tissue of eyelid (C49.0)
› From C44 Other and unspecified malignant neoplasm of skin
Includes
  • malignant neoplasm of sebaceous glands
  • malignant neoplasm of sweat glands
Excludes1
  • 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.-)

Broader instructions also apply from Chapter 2: Neoplasms.

ICD-9-CM equivalent

Converter →
  • 173.19Other specified malignant neoplasm of eyelid, including canthusapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • FY2019 (effective 10/1/2018): Expanded — no longer billable

Common questions about C44.199

Is C44.199 billable?

No. C44.199 is a header code. Report one of its more specific subcodes instead.

What is the ICD-9 code for C44.199?

The CMS General Equivalence Mappings map C44.199 to ICD-9-CM 173.19.