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ICD-10-CM 2027 diagnosis code

D04.112Carcinoma in situ of skin of right lower eyelid, including canthus

✓ Billable / specific

D04.112 is a valid, billable ICD-10-CM code for carcinoma in situ of skin of right lower eyelid, including canthus. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Ca in situ skin of right lower 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 D04.112

D04.112 is the ICD-10-CM diagnosis code for carcinoma in situ of skin of right lower eyelid, including canthus. It belongs to category D04 (carcinoma in situ of skin), block D00-D09 (in situ neoplasms) 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 D04.11 (carcinoma in situ of skin of right eyelid, including canthus), D04.112 is specifically for carcinoma in situ of skin of right lower eyelid, including canthus. Related codes cover upper eyelid, including canthus (D04.111).

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 was added in FY2019, effective October 1, 2018.

Notes that apply from higher levels

Instructions written at a parent level also apply to D04.112.

› From D04 Carcinoma in situ of skin
Excludes1
  • erythroplasia of Queyrat (penis) NOS (D07.4)
  • melanoma in situ (D03.-)

Broader instructions also apply from D00-D09 In situ neoplasms and 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.

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
  • FY2019 (effective 10/1/2018): Added
  • No changes since FY2019.

Common questions about D04.112

Is D04.112 billable?

Yes. D04.112 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can D04.112 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict D04.112 as a principal diagnosis.

Is D04.112 a CC or MCC?

No. D04.112 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does D04.112 group to?

D04.112 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.