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H18.462

H18.462: Peripheral corneal degeneration, left eye

Billable / specific codeICD-10-CMleft

H18.462 is a billable, specific ICD-10-CM code for peripheral corneal degeneration, left eye. It is valid for submission on a claim.

Check H18.462 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above H18.462

A category’s note binds every code beneath it.

Written on H18.4: Corneal degeneration

  • Mooren's ulcer (H16.0-)
  • recurrent erosion of cornea (H18.83-)

Risk adjustment

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

Medicare coverage

H18.462 is named in 6 Medicare coverage policies: 6 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56457Billing and Coding: Corneal Pachymetry
  • A56548Billing and Coding: Corneal Pachymetry
  • A56611Billing and Coding: Corneal Pachymetry
  • A57068Billing and Coding: Ocular Photography - External

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under H18.46

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.