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H46.9

H46.9: Unspecified optic neuritis

Billable / specific codeICD-10-CM

H46.9 is a billable, specific ICD-10-CM code for unspecified optic neuritis. It is valid for submission on a claim.

Check H46.9 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above H46.9

Not part of this code, but both may be coded when both are present.

Written on H46: Optic neuritis

  • ischemic optic neuropathy (H47.01-)
  • neuromyelitis optica [Devic] (G36.0)

Risk adjustment

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

Medicare coverage

H46.9 is named in 16 Medicare coverage policies: 16 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A53060Billing and Coding: Ophthalmology: Extended Ophthalmoscopy and Fundus Photography
  • A56551Billing and Coding: Visual Fields Testing
  • A56672Billing and Coding: Electroretinography (ERG)
  • A56692Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)

Alphabetic index entries that lead here

  • Neuritis›optic(nerve) (hereditary) (sympathetic)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under H46

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.