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H33.101

H33.101: Unspecified retinoschisis, right eye

Billable / specific codeICD-10-CMright

H33.101 is a billable, specific ICD-10-CM code for unspecified retinoschisis, right eye. It is valid for submission on a claim.

Check H33.101 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above H33.101

A category’s note binds every code beneath it.

Written on H33.1: Retinoschisis and retinal cysts

  • congenital retinoschisis (Q14.1)
  • microcystoid degeneration of retina (H35.42-)

Written on H33: Retinal detachments and breaks

Risk adjustment

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

Medicare coverage

H33.101 is named in 20 Medicare coverage policies: 20 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A53008Billing and Coding: Intraocular Bevacizumab
  • A53060Billing and Coding: Ophthalmology: Extended Ophthalmoscopy and Fundus Photography
  • A56537Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)
  • A56551Billing and Coding: Visual Fields Testing

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under H33.10

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.