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H16.421

H16.421: Pannus (corneal), right eye

Billable / specific codeICD-10-CMright

H16.421 is a billable, specific ICD-10-CM code for pannus (corneal), right eye. It is valid for submission on a claim.

Check H16.421 with the rest of the claim: free scrubber

Risk adjustment

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

Medicare coverage

H16.421 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A57068Billing and Coding: Ocular Photography - External
  • A57637Billing and Coding: Visual Field Examination

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under H16.42

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.