MCMedicalCodingSoftware
Free trial
D09.21

D09.21: Carcinoma in situ of right eye

Billable / specific codeICD-10-CMright

D09.21 is a billable, specific ICD-10-CM code for carcinoma in situ of right eye. It is valid for submission on a claim.

Check D09.21 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above D09.21

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

D09.21 is named in 24 Medicare coverage policies: 24 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A52480Oral Antiemetic Drugs (Replacement for Intravenous Antiemetics) - Policy Article
  • A53060Billing and Coding: Ophthalmology: Extended Ophthalmoscopy and Fundus Photography
  • A54768Billing and Coding: Cardiac Blood Pool Imaging (Multiple Gated Acquisition Scanning- MUGA, Ventriculography) When Performed in Conjunction with Cardiotoxic Chemotherapy
  • A56551Billing and Coding: Visual Fields Testing

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.