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H40.821

H40.821: Hypersecretion glaucoma, right eye

Billable / specific codeICD-10-CMright

H40.821 is a billable, specific ICD-10-CM code for hypersecretion glaucoma, right eye. It is valid for submission on a claim.

Check H40.821 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above H40.821

A category’s note binds every code beneath it.

Written on H40: Glaucoma

  • absolute glaucoma (H44.51-)
  • congenital glaucoma (Q15.0)
  • traumatic glaucoma due to birth injury (P15.3)

Risk adjustment

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

Medicare coverage

H40.821 is named in 17 Medicare coverage policies: 17 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A53060Billing and Coding: Ophthalmology: Extended Ophthalmoscopy and Fundus Photography
  • A55639Billing and Coding: Chemotherapy Agents for Non-Oncologic Conditions
  • A56457Billing and Coding: Corneal Pachymetry
  • A56537Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under H40.82

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.