MCMedicalCodingSoftware
Free trial
D09.20

D09.20: Carcinoma in situ of unspecified eye

Billable / specific codeICD-10-CMunspecified

D09.20 is a billable, specific ICD-10-CM code for carcinoma in situ of unspecified eye. It is valid for submission on a claim.

Check D09.20 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above D09.20

A category’s note binds every code beneath it.

Written on D09.2: Carcinoma in situ of eye

  • carcinoma in situ of skin of eyelid (D04.1-)

Written on D09: Carcinoma in situ of other and unspecified sites

  • melanoma in situ (D03.-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

D09.20 is named in 7 Medicare coverage policies: 7 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56748Billing and Coding: White Cell Colony Stimulating Factors
  • A57637Billing and Coding: Visual Field Examination
  • A57638Billing and Coding: Destruction of Malignant Skin Lesions
  • A57788Billing and Coding: Peripheral Nerve Blocks

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under D09.2

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.