ICD-10-CM 2027 diagnosis code
C44.111Basal cell carcinoma of skin of unspecified eyelid, including canthus
C44.111 is a valid, billable ICD-10-CM code for basal cell carcinoma of skin of unspecified eyelid, including canthus. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Basal cell carcinoma skin/ unsp eyelid, including canthus
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About C44.111
C44.111 is the ICD-10-CM diagnosis code for basal cell carcinoma of skin of unspecified 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 billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within C44.11, choose C44.111 (unspecified eyelid, including canthus) only when documentation doesn't support a more specific option: right eyelid, including canthus (C44.112) and left eyelid, including canthus (C44.119).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent, relative weight 1.2471) and DRG 125 (Other Disorders of the Eye without MCC, relative weight 0.7702), in MDC 02 (Diseases and Disorders of the Eye), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 173.11 (basal cell carcinoma of eyelid, including canthus).
Notes that apply from higher levels
Instructions written at a parent level also apply to C44.111.
› From C44.1 Other and unspecified malignant neoplasm of skin of eyelid, including canthus
- connective tissue of eyelid (C49.0)
Broader instructions also apply from Chapter 2: Neoplasms.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 02 · Diseases and Disorders of the Eye
ICD-9-CM equivalent
Converter →- 173.11Basal cell carcinoma of eyelid, including canthusapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about C44.111
Is C44.111 billable?
- Yes. C44.111 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can C44.111 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict C44.111 as a principal diagnosis.
Is C44.111 a CC or MCC?
- No. C44.111 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does C44.111 group to?
- C44.111 is used in the MS-DRG v44.0 logic for MS-DRG 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent) and MS-DRG 125 (Other Disorders of the Eye without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for C44.111?
- The CMS General Equivalence Mappings map C44.111 to ICD-9-CM 173.11.